WireDescription
Component Identifiers (CID¹) ModuleIdentifier (MID²) EngineControl System (MIDNo. 036) CID
Fue lInje cto r S oel n odi # 1 Fue lInje cto r S oel n odi # 2
0 0 03 0 0 04
Fue lInje cto r S oel n odi # 3 Fue lInje cto r S oel n odi # 4
0 0 05 0 0 06
Fue lInje cto r S oel n odi # 5 Fue lInje cto r S oel n odi # 6
0 04 1 0 0 91 0 0 94
E CM 8 V DC S up pl y T hor tlte S e n sor Fue l P r e s uer S e n o sr
0 1 00 0110
Wire Number
Wire Number
Wire Color
RD
Ba t (+)
G790
PK
Not Used
1 02
RD
Hd Lmp
G791
BR
Not Used
103
Wire Color
1 01
YL
A u ot L u b e P u m p ot A u ot L u b e Pr e s u er S w .
1 06
W H
Description Po wer Ci rc ui ts
Comp on ent
0 0 01 0 0 02
PU
Imp l e me n t C o n rt o l Re v er sni g F a n S w ( NO . .)
T li /t L i tf Po isit on S e n o s sr
H 70 3
Y L
I m p el me nt Co nt or l R e ve sr ni g a Fn S w (N C . ).
En gine E CM
H704
PK
Auto Reverseing F an Solenoid
P U
M ai n P o w e r R l y O u pt ut
H 71 3
P K
I m p el me nt Co nt or l L i tf Pr op or it on al S o l
1 14
R D
W ar ni ng Ho nr ( of w r a r d)
H 71 4
O R
1 24
GN
A uot L ub e Pu mp t o Au ot L ub e Pr es su re S w.
H 71 7
BR
RD
F ue l Pr m i ni g Pu mp t o M a ch ni e n I et rf ac e
H 71 8
GY
G N
S up p l e me n t a l Ste e r ni g
H 7 4 6
Y L
G N
A uto Lu b e Pu m p To PCS
H 7 4 7
B R
V a r ai b l eS p e e d Fa nS o l e n o i d
1 4 1
RD
B ea oc n/ He a t e d Mi rr o r s
H 7 9 5
P K
E n g ni eDi g i at S l e n o s r( R e ut nr )
1 47
RD
E CA P / C e nt er D as h nI di ca o t r Pa ne l
J 76 4
BR
T ar ns mi s oi n Sw ti ch S / en so r Re u t rn # 1
1 50
O R
I mp el m e nt T/ ar ns m i s oi n/ En gi ne E C M
1 74
RD
Unswitched Bus P ower
K738
GN
Not U sed
1 75
RD
Hood Actuator
K739
BU
Not Used
1 9
RD
1 10 1 12
1 29 1 3 6
O i l Pr e s u er S e ns o r EngineCo lantTem p e r aut r e S e n s o r
1 3 8
0 1 68 0172
E l ec tirc al P o we r S up p l y I n t aek M a n i f odl A i r T e m p e r a tureSeno s r
0 1 74 0 1 90
Fue l T e mp e ar t ur e S e n sor E n gi n e S p e e d Se n so r
0 2 53 0 2 61
P e sr o na lti y M o d uel E n gi n e S p e e d Se n so r
0 2 62 0 2 67
5 V otl S e n os r S u p l y E n gi n e S h utd ownSw ith c
RD
K 73 7
B R
I m p el me nt Co nt or l L o w e r P r op or it on al So l I mp el me nt C o n rt ol P li ot P er s S ol I mp el me nt C o n rt ol T li t Cy l Po si it on V a r ai b l eS p e e d Fa nS o l e n o i d
N o t Us ed
H o dA tc u a ot r Ground Circuits
N 7 0 7
P U
Fu e l Di f f e r e n ita l Pr e s us er (Re ut nr )
R 7 46
PK
Atm o s ph e e r i c Pr e s uer S e n os r ( Gor u nd )
2 00
BK
Main C hassis
R747
GY
Boost P ressure S e nsor Signal
2 01
B K
O pe ar ot r M o ni ot r R e ut n r
W H
F u e l D i ff er en it al P er s u r e S i gn al
2 02
BK
T 7 2 5
0268 0274
C h e c k Por g r a m m ableParam eters Atmop s h e r i c Per s s uer S e n s o r
0275 0 2 83 0 2 91
RightTu rboInletPre ssureSe nsor F itle r Re srti ct L a m p E n gi n e Co oiln g Fa n S oel n oi d
0 2 96 0342
Tra n s mi s iso n EC M C a mh s a f t P o sti o n S e n o s r
3 04
W H
S at tr er Re al yt o S t a r et rM ot or
0 5 96 1 6 39
Imp l e me n t C o n rt o l Mah c i ne S e cu rti y S ys t e m
3 06
GN
Sa t rt er R el ay C oi l ot T a r ns mi ss oi n Co nt ro l
G 82 9
GN
E ng ni e Se ns or G ro un d
3 0 8
Y L
M a i nP o we rRe al yCo l i
G 8 3 3
P K
Fu e l Te m p e r a t u r eS en os r( G r o u n d )
1785 2 4 17
I n t aek M a n i f odl P r e s s uer S e n s o r Sta rtAidS o l en odi
¹TheCID isadiagnostic codethatindicateswhich circuitisfaulty. ²TheMID isadiagnostic codethatindicateswhich electroniccontrolmodule diagnosedthefault.
FailureModeIdentifiers (FMI)¹ F M IN o. o.
X msn Ctrl
Y794
OR
Expa nded Can Data Link +
2 29
BK
E ngine ECM
Y795
GN
Expa nded Can Data Link -
2 61
BK
B ar ke Oil Pressure Sw.
838
YL
Belly Guard Actuator
C216
BK
Implement R etu rn Basic MachineCircui ts
Fa li ur eD eD s e cr pi it on
839
BU
A893
OR
G 82 8
B R
B ack u p Al a r mL amp Tr a v e l Al a r m
G 8 5 0
B U
In el A t ri He a te r
G Y
W a r n i n g Ho nr (F o r w a dr )
G 8 5 6
WH
Ti m i n gC / a .l Pr o b e( )+
3 26
PU
K ey Sw C' ' Term.
3 97 3 98
O R B U
A300
GN WH
A307
GY
X337
WH
H oo d A c ut at o r M o t o r ( L o w e r) H oo d A c ut at o r M o t o r ( R a si e) LowerHood RaiseHood
G857 J 80 7 J 80 8 J809 J813
ThrottlePosition Not Used Monitoring Circuits
J814
G Y
T u r bo I nl et P er s ur eS en o s r( +B at et yr )
A tl e r na ot r( R) T er m. S up pl em e n at lS et er ni g S w
T 8 5 8
1
D a t a v ai ld b u t b e l o w n om r alopera tionalran ge.
4 1 7
2
Data e r r a t i ,c i n t e r m i tet n t , o irn c o rer c t .
4 1 9
V otl a g eaboe v n om r alorh s o tr e d hi g h.
4 26
P ir m a yr St e ir n g Sw
T8 59
Y L
O pr Mo nP a r ik n g Br a ke
T8 60
B R
O pr M on P ow er T ar ni O li Fi tl er
9 00
P U
X m s nS hi tfS ol No .5 O r4
4 30
BU
O pr Mon Air Fil ter
901
WH
Xmsn Shift Sol N o. 6
C urre nt b e l o w n om r a l or o p e n icr u c i .t
4 32
PK
O p r Mon Brake Press. o ( il)
944
OR
Cat Data Link +
4 39
YL
La mp Indicator
9 45
BR
Cat Data Link -
4 42
GY
8
Abnorm alfrequen c y,p u le s w i d t h , o r p eiro d .
9
A bn or ma l up da e t . A b no r m a l r aet o f c ha n ge . F al iu er m o d e n o t i de n itfai bel .
4 4 3
Y L
4 47
PK
4 50
YL
4 53
P K
Hyd System T e m p Gage P owe rTr a i nTe m p Ga g e Fuel Level Gage Tach Sender (+) S up pl em e n at lS et er ni g a F ul t L a m p
12
B a d de vci e o r co m po n en t .
4 84
YL
Pr m i ary Steering Lamp
13
O u t of c ailb a r toi n .
E 45 5
B R
H yd ar ul ci Oi lF li et r
P a ar m e t e r af iul r es .
16
F 42 1
YL
P a ar m e t e r af iul r es .
G479
WH
P a ar m e terno tava i l ab l e .
G 48 5
B U
Mod uleno t r e sp o nd i ng .
G 48 6
G N
17 18
S e ns o r u s p pyl f a u lt.
19
C on di it on n ot m e t.
5 06
20 P a ar m e t e r af iul r es . ¹TheFMIisa diagnosticcodethatindicates whattypeoffailure hasoccurred.
5 07 5 13
F ue l Te mp er at ur e Se ns or ( Si gn al ) P er lube Indica otr O pr Mo nF or nt Br ak eT em p e ra ut er O pr Mo nR ea rB ar e k Te mp er at ur e Accessory Circuits
PU
Washer - rFont
WH
Washer - R ea r
OR
AC / P er ss ur e Sw . ot A C / C ul ct h So el no di
Hig hFuelP r e s uer Hig h A i r Fl it er R e tsrci toi n Hig hExha ustT e m pe r at uer Use r D e ifn ed S h ut d ow n
E 3 60 E 3 62 E 3 63 E 3 90
Ride Cont Solenoid 1 Th ri dF u n tcoi nD vie tre rS o l Oil Pr e ssure Sensor (Signal) Coola n t T emperatu er Sensor S ( gi nal) P ar kB ar ke So l Engine Throttle Co n t I n t ak eM an fi o l d A i r e T mp er at u r e S e ns or (S gi na )l
C 99 1 E900 E 90 1 E 90 6 E 90 7 E908 E909 E 91 9
PK WH G N O R GY BR WH YL
Turn Lamp -Le ft Turn Lamp -R -Right
BK
Crank Speed/Timin g(-)
E 96 4
WH
C ar n kS pe ed T/ m i ni g + ( )
E966 K927
BU YL BU
K977
PK
Trans O il Temp S ensor
N 9 3 9
G N
Ri d e Co n tr o l So el n o di 2
T ai /l po si it on L a m p - L e tf( Ro a d P k g) W / di h t
P 94 5
OR
A nt i Dr fi t So -l S it ck
GN
Head L amp L ow
P946
BR
Anti D rift Sol- B oom
7 27
GN
S u p el me nt al S et er ni g Mo o t r Re al y
P 99 0
BR
S at rt R el ay C rt l (R et ur n)
7 28
B U
S up pl em e n at lS et er ni g C o nt S w
T 9 5 7
P U
F u e l nI ej tc or So el no di #1
Q uci k C o u pel r S w T o L o w Pe r s su r e So l
7 5 1
G N
X m s nS h i tf So lNo 1 . Or 3
T9 58
Y L
Fu e l In ej tc o r So el no di #2
7 52
YL
Xmsn Shift Sol No. 2
T95 9
BR
Fuel n I jector Solen o id #3
X m s nS h i tf So lNo 3 . Or 1
T9 60
B U
Fu e l In ej tc o r So el no di #4
X m s nS h i tf So lNo 4 . Or 5
T9 61
G N
Fu e l In ej tc o r So el no di #5
B U O R BK
A uot R ev er se F an S / a t rt A di S ol en oi d Re ut r n
F 71 3
OR
T ur bo I nl et P e r ss ur e Se ns or ( Si gn al )
X 91 8
F7 6 2
G Y
S at tr Ai dS o l e n o i d
X 9 1 9
T 96 2
G 7 64
PK
X m sn C on t Pa r kB r ak e Le v er S w To G n d
WH PU WH
S e n o s r- Tr a n m s sis oi nO l i Te m p e r a t u r e
H-2
B ol kc As m .
L 1- 3
F 1- 3, Z- 1 3
S e n o s r- Tr a n m s sis oi nI n p u t Sp e d
C-10,W-10 G-7,U-7
Connector Location
E-24,U-24
Schematic Location
Machine Loc Location ation
CONN 1
C-17
F-2 , U-2
B re ak er - B el yl G ua rd A ct ua ot r
K -1 4
E-1 2 , U 1- 2
CONN 2
C-17
B er ak e r -H o dA tc ua ot r
J 1- 4
F 1- 5, Z- 15
S en so r- Tu rb oI nl et Pr es u se r
G 1- 2
G 9- ,X 9-
CONN 3
J-16
Breaker -M -Main
J-14
F-15 Z , -15
Solenoid -A/C C lutch
A-13
G-6 ,U-6
CONN 4
J-16
H- 3
F- 1 9 , W - 1 9
CONN 5
I-3
F-19 ,W ,W-19
C ON N6
B re ak er -A tl er na o t r
I -1 4
F -1 5, Z - 15 F -1 5 , Z - 15
B er a ke r- Ru n ni gL a m p
K 1- 4
Breaker -S -Start
I-14
F-15 ,Z-15
F 1- 5, Z- 1 5
S en so r- T ran s .O ut pu tS pe ed L ( ea di ng ) S en so r - T r an s. O ut pu t Sp ee d (T ar li ni g)
I 9-
D 1- 1, U- 1
I 9-
E 1- 0, U- 1 0
H 9-
E -1 2, U - 12
H 9-
S o l e n o i d- Au xL fti Pr o p Solenoid -A -A u x Lower Prop
Connector Number
F-2 , U-2 F-2 , Y-2 F-2 , Y-2
B-1 5 Tm i ni g/ C a l P r ob e
F-7 ,U-7
D 1- 5
F 7- ,U 7-
B er ak e r - Un sw ti h c ed B u s (C ab )
J 1- 4
F1 - 5, Z- 15
S ol en oi d -D um pP or p
I 3-
F 1- 9 W , 1- 9
CONN 7
E-1 5
G-7 , U-7
Control -E -Engine
G-14
F-7 ,U ,U-7
Solenoid -L -Lift Anti-Drift
I-3
F-19 ,W ,W-19
C ON N 8 J u m p St ar tR ec pt ac el
L -1 2
G -1 3, Z - 13
Co n t or -l Ho o d Ra sie L/ o w e r
J 1- 3
F 1- 5, Z- 1 5
S o l e n o i d- Li tf Pr o p
I 3-
F- 1 9 , W - 1 9
CONN 9
A-1 0
F-11 , U-11
CONN 10
G- 9
E-9 , X-9
CONN 11
K-8
E -10 , X-10
Motor -A -Autolube Pump Mo ot -r B e l l yG u a dr Mo ot r- Fr on W t a h s e r
B-6
I-10 ,T ,T-10
Solenoid -L -Lo w er Prop
I-3
L 1- 4
D 1- 4, X - 1 4
S o l e n o i d- O n/ O ffP l i o t
H- 3
C 5-
M o t or - u F el Pr m i ni gP um p
F- 1 2 , S - 1 2
A 1- 3
Motor -H -Ho o d Actuator Motor - Re a r Washer M o t or - S e co nd ar yS et er ni g
H 7- , U 7-
G-15
E 3- ,Y-3
C-5
F-12 , S-12
J 9-
D 1- 1, X 1- 1
Motor -S -Starter
K-11
E-9 ,X-9
Relay -M -Ma ni
J-14
F-15 ,Z-15
J 9-
D 1- 1, X- 11
R e l ay - Se co nd ar yS et er ni g R el ay - S ec on da ry S et e irng I nt er me di at e
K -1 0
Relay - Start Re is ts o r -C A N S e n d e -r F u e Ll e v e l
E -1 0 , X - 10
L 2-
S ol en oi d- R ac kB ac kP or p
I 3-
D 1- 7, V- 1 7
CONN 12
C-7
F 1- 9, W 1- 9
CONN 13
C-7
E-13 , S-13
E 7- ,U-7
CONN 14
I-6
D-10 , U-10
Solenoid -R -Reversing Fan
B-13
Solenoid - S atrt Aid
K-7
I-9 , Y-9
CONN 15
H-6
I 3-
F 1- 9, W 1- 9
CONN 16
H-6
S ol en oi d- T li tA nt -i D r fi t Solenoid -V -Va irable Speed Fan
B-13
Solenoids -C -Cylinder Head (1 (1 -6 -6)
F-1 7
S ol en oi ds - Ri de Co nt or l 1( 3 - )
G 3-
S ol en oi ds - T ar ns . C l ut ch
I -9
I-12 , V- 12
I-4
G-15 , X-15
F 1- 9 W , 1- 9
CONN 19
L-3
G-18 , V-18
CONN 20
L-3
E - 1 , U 1- 1
Switch - A/C Refrigerant
B-13
G-6 , U-6
F 7- ,U- 7
S w i ct h- Be l l yG u a dr Act u a ot 1 r 2,
L 1- 3
G 1- 5, Z- 1 5
CONN 22
J-3
F 7- , U- 7
S w i ct h- B ar e k O l i Pr e ss u r e
E 7- , U 7-
CONN 23
H-3
F-17 , V-17
H 7- ,U 7-
CONN 44
B-6
C-16,X-16
CONN 45
B-6
I-10 , T-10
B 1- 3
E 9-
G 6- U , 6-
S wi ct h- D i ff er en it al P er s ur e
B 1- 6
E 1- 5
G -6 , W 6 -
S wi ct h- D i sc on ne tc
L 1- 2
G 1- 5, Z 1- 5
S e n os r- Bo Bo o st Pr e s us e r
D- 15
F- 6, V- 6
S w i ct h- Fu el Pr m i ni gP u m p
A 1- 3
H 7- , U- 7
S en so r - Ca m Sh af t Sp ee d Ti mi ng
D 1- 5 E 1- 5
S en so r - Cr an k Sh af t Sp ee d Ti mi ng
C 1- 5
C 1- 9 , W- 19 H 7- U , 7-
S wi ct h - Gr ou nd L ev el S hu d t ow n
H -1 3
S wi ct h- H o od A c ut at or
H 1- 3
H -7 , U 7-
S wi ct h - H y dr au il c Fi tl er B yp a ss P er ss ur e
L -3
D -4 ,U -4
S wi ct h- Pa rk Br ak eP re ss ur e
S en so r- F ue l Pr es su re
B -1 6
G -1 1, W -1 1
S en so r - Fu el T em pe ra u t re
B -1 6
G -7 , U 7-
S wi ct h - Se co n d a ry S et er ni g Pr es su re
I5 -
G -6 U , -6
S wi ct h- T r an sF li e t rB yp as s
S en so r- Fr on tA xl eO li T em pe ra u t re
S en so r- H y dr au il cO li T em pe ra ut re
C 5-
K-3
G-18 , Z-18 G-18 , T-18
F -1 5 , Z - 15 F 1- 5, -Z 15 E -1 3, T - 13
K -7
F -1 4, X -1 4
K -7 C 5-
F -1 4 , X- 14 D 1- 3, S - 13
Volume 1: Chassis ©2006Caterpillar AllRightsReserved
F ue l n I ej ct or S ol en odi # 6 G ro un d Le ve l Sh ut D ow n N ( O . ). G or u n dL e ve lS h u D t o wn (N. C . )
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H i g h I nat k e M a n o i fl d A i r T e m p e rature
Titl Title e
Y
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197-8820(DensoHDB 95A) E l e crti c S t a ri n t g M o t o:r Engine Control:
165-46 19(Delco42M T)
Fun c ti on
Ac t uate
T
Deac t uate
Con tac t Po si t i on
275to1750kPa¹ NormallyOpen² (39.9 to 253.8 psi) 138±28kPa 89 ±20 kPa 117-77 3 Hydra u l i c F i let r B y p a s s Per s s uer NormallyClosed (20 ±4 psi) (12.9 ±2.9 psi) A-B, Normally Open 8270 kPa MAX 6890±345kPa 174-43 12 ParkBrae k P r e s s uer A-C,NormallyClosed (1200psiMAX) (1000±50psi) A-B, Normally Open 10700kPaMAX 8960±537kPa 175-32 44 BrakeOilPre ssure A-C,NormallyClosed (1550psiMAX) (1300±79psi) 1200 kPa MAX 700 ±100 kPa A-BNormallyOpen 230-57 1 Second a r y S t e eirn g P r e s u s re (174.0psiMAX) (102 ±14.5 psi) A-CNormallyClosed 110.3 ±13.8 kPa 69 kPa MIN 258-08 3 F u e l D i fef r e n tai l P r e s s u re NormallyClosed (16 ±2 psi) (10psiMIN) 1200 kPa MAX 700 ±100 kPa A-BNormallyOpen 3E-645 0 P r i m ayr S t e e r i n g P r e s s uer (174.0psiMAX) (102 ±14.5 psi) A-CNormallyClosed ¹Withincreasing pressuretheclosed conditioncanbe maintainedupto 2800kpa(405 psi),withdecreasingpressure theclosed conditioncanbe maintained downto170 kpa(25psi). 114-53 3
P
P
O
O
N
N
M
M
A/C(High/Low ) P r e s s uer
Pressure Symbol
Temperature Symbol
Level Symbol
Flow Symbol
Circuit Breaker Symbol
Symbols And Definitions Fuse -Acomponentin anelectricalcircuitthat willopentheci rcuitiftoo muchcurrentflows throughit. Switch (Normally Open): Aswitch Open): Aswitch that willclose at a specified point (temp, press, etc.). The circleindicatesthatthe componenthasscrewterminalsanda wirecanbedisconnectedfrom it. Switch (Normally Closed): Aswitch that willopen at a specified point (temp, press, etc.). Nocircleindicatesthat thewirecannotbe disconnectedfromthecomponent. Ground (Wired): Thisindicatesthat thecomponentisconnectedto agroundedwire.The groundedwireisfastenedto themachine.
SENR4130 SENR3 581
L
L
Ground(Case): Thisindicatesthat thecomponentdoesnothave awireconnectedto ground. Itisgroundedby beingfastenedtothe machine. Reed Switch: Aswitchwhosecontacts arecontrolledbya magnet. Amagnetclosesthe contactsofanormally openreedswitch;it opensthecontactsof anormallyclosedreed switch.
RENR93 18
K
K
J
J
Com po nent Des c ri pt i on Soleno ids: Resistor:
1 3 8 2- 9 2 4
S o l e n oi d s:
145-7028 148-2350
Sender: Solenoid:
T /C Temperatur e Va riable Speed Fan
1000 5.0 ± 0.3
Solenoid: Solenoid:
O n /Off Pilot Au to Reversing Fan
32.6 ± 1.6 32.6 ± 1.6
I
152-6761 152-8340 163-0872 168-6452
Solenoid: Solenoid:
216-5338
Soleno ids:
F
E
E
D
D
C
C
B
B
A
A 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
C AN Data Link AuxLiftRaise Prop Aux Lower Prop DumpProp Lift Prop
Solenoid: Asolenoidis anelectricalcomponentthatis activatedbyelectricity. Ithasa coilthatmakesan electromagnetwhencurrentflowsthroughit. The electromagn et et canopenorclo n orclo se ava lveormoveapieceofmeta v eapieceofmeta l thatcandow ork. lthatcandow
1.06 ± 0.0 5 108 - 132
MAGNETICLATCHSOLENOID -Amagneticlatch solenoidisan electricalcomponentthatis activatedbyelectricityand heldlatchedby apermanentmagnet.Ithastwo coils(latchand unlatch) thatmakeelectromagnetwhencurrentflowsthroughthem.It alsohasan internalswitchthatplaces thelatchcoil circuitopenatthe timethecoil latches.
7.75 ±1.0
LowerProp RackbackProp
H
F
Fuel Injection
Res i s tan ce O ( hm s)¹
128-7991 134-2540
I
G
Relay (Magnetic Switch): Arelay Switch): Arelay is an electricalcomponent that is activated by electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnetcanopenorclosethe switchpartofthe relay.
Resistor, Sender and Solenoid Specifications
H G
Sender: Acomponentthatis usedwitha temperatureorpressuregauge.Thesender measuresthe temperature or pressure. Itsresistance changes to give an indication to thegaugeofthe temperatureorpressure.
T
Par t N o.
Form Number 177-99 53(DensoHD B80A)
Part No .
² Contact postion at the contacts of the harness connector.
Related Electrical ServiceManuals Altern ator:
Symbols Off MachineSwitch Specification
Hig hFuelT emp e r aut r e
IdleElea v t e d t o I n rce a s e B atte r y V o a l tg e
E539
PrintedinU.S.A.
Harness And Wire Electrical Schematic Symbols
BB AA
L o w En gni e O i l P r e s ue r E n gi n e O ev r sp e ed
Fue l F i let r R es tircito n
E441
972H: A7D1-UP A7G1-UP A7J1-UP
E -1 3 , S- 13
D 5-
S wi ct h- P rm i ar yS et er ni gP re ss ur e
CONN 21
966H: A6D1-UP A6G1-UP A6J1-UP
F-18 , X-18
F-15 , Z-15
E 9-
S en o s r- A m t os p h er ci P re s ur e
S en o s r- C o ol an tT em pe ar ut e r
I-12 , V- 12 I-12 , V- 12
F-6
CONN 18
E 7- ,U-7
966H and 972H Wheel Loader Electrical System
E-13 , S-13
CONN 17
G-7 ,U ,U-7
I-14 I 1- 6
S en de r- T/ CT em p e ar ut er
S o l e n o i d- Qu cik Co u p el r
F-19 ,W ,W-19 F- 1 9 W , - 19
On/O f f Pilot Solen o id R ( eturn)
Head L amp H i P ar /k a T l iD /a h s L/ a mp
BR
6 19
E 74 8
H-18,T-18 F-7 , U-7
A-9
Sensor-Tilt Position
F 1- 3, Z- 1 3
Cam Speed/Timing + ()
PU P U
6 17
BR
Sensor-Rear AxleOilTemp.
F-15,Z-15
L 1- 3
Cam Speed/Timing (-)
6 11 6 1 4
P 9 76
D-11,X-11
I-14
B a tt e r ei s
Dump Proportiona S l olenoid
E963 E965
J-9
C-15
A ux L ow er P or po rt oi na l So l A u x Li tf Pr o p o r ito n al So l R a c kb ac kP or po tr oi na l S o l
S top Lamp
ArcSuppressor- SecondarySteering ArcSuppressor- StartRelay
Machine Location F-19 , W-19
K-3 H-3
Sensor-Oil Pressure
Trans nIput Spd +
B R P K
YL
E-15
Sensor-Lift CylinderHeadEnd Pressure Sensor - Lift Position
D-17,V-17
Trans nIput Spd -
E 9 2 0 E 92 1
GY
Sensor - Intake Manifold Air Temp
G-6 , U-6
L-2
F ue l Pr es su re S en so r S ( gi na )l
Li t f Press
OR
Schematic Location
Component
E-4 , T-4 H-6,U-6
B-13
T ar ns Ou pt ut Sp dQ +
AC / Sw To Re rf gi e r a n S t w
GN
Machine Location
A-14
Arc Suppressor - A/C ArcSuppressor- QuickCoupler
T ar ns Ou pt ut Sp d-
Li t f Position Sensor
E922
D-17
Alternator
Trans Output Spd +
AC / Cl ut h c T o T h er mo ts at S w Sen osr
Component Location Schematic Location
Component Alarm - Backup
T ar n sO ut pu tS pd Q-
Y L
7 5 4
E 2 65
W H BR
BU
7 5
E 1 72
GY
B U
GY
Control Circuits
E 1 94
WH BU
A982 C 96 7
W H
6 06
E 0 96
OR
Fu e l In ej tc o r So el no di #5 6/ Co m mo n
5 22
6 04
Co n di tio n
A 95 8
Fu e l In ej tc o r So el no di #3 4/ Co m mo n
5 2 1
6 05
Event Codes EngineControl
9 8 7 994 99 5
O R
C529 C530
Lighting Circuits
Event Co de
976
WH
F u e l nI ej tc or So el no di #1 2/ Co mm o n
Curre ntabovenorm a l o r g r o u n d e d cric u i.t Mecha nicalss y t e m n o t r eps o n d i n g p r o p e r l .y
14
G Y
V otl a g ebelo w n om r alorh s o tr e dol w .
6 7
15
ImplementProportionalReturn
J 84 4
G N
11
P or po tr oi na lR et u r n 1( 3- ) P or po tr oi na lR et u r n 4( R / e v ) ProportionalReturn(Forward) ImplementProportionalReturn Ride Control Solenoids Proportional Return T ubr o I nel t P e r su sreSe nso r(Gro u n d)
O R
10
BK BK BK
4 03
G Y
B K B K BK BK
Timing/Cal. Probe (-)
J815
4 16
4
YL
J 8 43
D a t a v ai ld b u t a b o v e n om r alopera tionalran ge.
5
E ng ni e 5 +V S e ns o r S u p pl y
3 2 1
0
3
W H
Belly G uard Actuator FuelPrimingSw.
3 2
A301
RENR6332-01 November2006
Description Con tr ol Cir cui ts
H 7 02
2 2 0 8- 2 1 4
S e n d e :r
237-2234
Solen o id
239-1134
Solenoid:
A/C Compresso r Clutch Axle Oil Cooler Clutch Transmission C lutch F u e lL e ve l Left Anti-Drift RideControl(3) Tilt Anti-Drift S tart Aid
¹ Atroomtemperature unlessotherwisenoted.
17.6±0.6 9.4 ± 5.0
Harness And WireSymbols 1 2
33.8
1 2
Deutsch connector: Typicalrepresentation ofaDeutsch connector.Theplugcontains all socketsandthe receptaclecontainsallpins.
C-C4 AG-C3 130-6795 130-6795
20.0
Part Number for ConnectorPlug
HarnessConnectorSerializa tionCode:The"C"stands for"Connector"andthenumber indicateswhich connector in the harness. (C1, C2, C3, .... .)
AG-C4 111-7898
Socket
L-C12 3E-5179
PartNumberFor ConnectorRecepticle
1
325-AG135PK-14 Pin
Sure-Sealconnector:Typicalrepresentation ofaSure-Sealconnector. Theplugandreceptacle containbothpins andsockets. HarnessIdentificationLetter(s): (A, B, C, ..., AA, AB, AC, ...)
Wire,Cable,orHarnessAssemblyIdentification: IncludesHarnessIdentificationLettersandHarness ConnectorSerializatio nCodes
8.7 ±0.4 Empty: 240 - 250 Full:28-33
Receptacle
5A Pin or Socket Number
SingleWire Connector
9X-1123
Fuse (5Amps) Component PartNumber
Plug Harnessidentificationcode: Thisexampleindicateswire 135inharness"AG".
200-L32BK-14
2 Ground Connection
CircuitIdentification Number
WireColor
WireGauge
1 L O V 1 e 0 - g a P 2 6 3 3 3 6 R N E R
Component Identifiers (CID¹) ModuleIdentifier (MID²) Caterpillar Monitoring System (MIDNo. 030) CID
Component
0 0 96 0 1 00
F u elL e ve l S e n der E n gin e Ol iP r e ss u er S e n o sr
0110 0177 0 24 8
EngineCoo lantTem peratu reSensor TorqueCo n v e ret r O i l T e m p ear t u r e S e nos r D at a Li nk
0 2 63 0 27 1
S e ns o r P o w e r Su p ply A ct oi n Al ar m
0 32 4 0600 0 8 19
A ct oi n La mp Hydra ulicOilTemp eratu reSensor Dip s l ay D a at L i n k
0 8 21 0 8 26 0830
Dip s l ay P o we r S u p l y T/CO ilTem p ea r t ur e S e n sor BrakeOilTem peratu reSensor
Payload Control System (MIDNo. 074) CID
Component
0 24 8 0364 0 59 1
C AT D at a Li nk HeadEndLiftC ylinde r P r e s s uer S e n s o r P CS E EP RO M
0769 1 9 64
R o d E n d L i f t C lyi n d e r P r e ssureSen sor L i tf P o istoi n S e n sor
Electronic Transmission Control System (MIDNo. 081) CID
Component
WireDescription Wire Number
W ri eCo o l r
102 104
RD YL
Hd Lmp MSS /Product L ink
619 633
GN BU
Head Lamp Low Attach Lighting C kt
105 1 0 6
RD W H
Key Sw Ti tlL/ fi P t o s tii o n Se n so sr
646 6 4 7
OR G N
Light Sw To Front Flood Relay L gi h t Sw To Re a r Fl o dR e l a y
108 110
BU RD
Air Se at Engine ECM
651 661
PK GN
Flood Lamp Rear Tachometer Lamp
112 113
PU OR
Main Power R ly O utput Opr Mon Panel Vmis B+ Switched
662 663
YL GY
Speedometer Lamp Gage Lamps
1 1 4 1 15
R D P K
Wa nr ni gH o r n( of wa r dr ) V olat ge Co nv e r et sr / R a di o
6 9 1 A 62 9
G Y B U
Wa nr ni gL gi h t sTo Br e a ek r F or nt Ro ps Hi dF ol od At at ch m e nt
1 18 120
GY RD
F or nt R / ea rW pi er W / as he r Voltag eConverter Memory
720
P U
Control Circuits Xmsn Brake Sw
1 2 1 122 124
R D RD GN
B a ck Al a r mTo La m p Dome Lamps AC
7 2 7 728 751
G N BU GN
S u p p l e me nta lS et e r ni gMo ot rRe al y Suppleme ntal Steering C ont Sw Xmsn Sh ift Sol No. 1 Or 3
125 126
RD PK
Product Link ECM/Radio Xmsn Ctrl
752 754
YL BU
Xmsn Shift Sol No. 2 Xmsn Sh ift Sol No. 3 Or 1
De sc ir pt oi n
Wire Number
W ri eCo ol r
Power Circuits
RENR6332-01 November2006
D s e cr pi it on
Lighting Circuits Continued
Component Location Schematic Location
Machine Location
Alarm-Action
E-15
H-12,V-12
Alarm-Implement AudibleAlert
E-15
H-12,V-12
Switch-Autodig KickoutSet
C-1
Alarm-Quick Coupler
D-1
L-14,Y-14
Switch-Autodig Mode
D-3
I-7
H-13,X-13
Switch-Autodig ModeSelect
C-1
E -7
L-1 5 , Y 1- 5
S wi ct h - Au ot di g Tr gi ge r
G -7
Component
ArcSuppressor- ForwardHorn C on rt ol - C at er pi l ar M on ti or ni g Sy st em
127 130
OR RD
Front C ab F lood Lamps Stop L amps
755 762
OR YL
Xmsn S h fti S ol No. 4Or 5 Bucket Positioner S ol Sw
1 31 1 3
B R R D
F al sh er / Fr on /t R e ar Fl oo d R e al ys L H / R H Da h s n I d i ac ot rP a n el s
E 70 1 E 7 0 7
P K G N
A ut oR di e C o nt or l S w CM SD sp i al y+v
C on rt ol - Pa yl oa d C o nt or l S y ts e m
134 1 35
YL BU
Rear Cab F lood L amps C on ve rt er 1 2V ol tS wi ct he dO ut
E708 E 73 5
PK PU
CMS D ispl ay C lock C MS T ac k/ Se rv M rt O / do me et rS el ec t
136 138
GN GN
Supplemental Steering Auto Lube Pump To PCS
E746 G746
GN WH
Downshift Sw N ( .O.) Xmsn Cont Torque Limit
C o n ev tr e r - V o tl a g e( 1 0 A)
Schematic Location
Component Switch-Auto/ManualGear Select
Machine Location
D-4
L-14,Y-14 L-14,Y-14 L-14,Y-14 L-14,Y-14
Connector Location
H -1 3 , X- 13
Control -Dimmer
D-15
H-12 ,V-12
Switch -Beacon
C on rt ol - m I pl em e n tC on rt ol Sy ts em
F 1- 4
H 1- 2 U , 1- 2
S w i ct h- B ol w e r a Fn S p ee d
D 6-
L1 - 5 Y , 1- 5
D 7-
K 1- 5 Y , 1- 5
S w i ct h- B u c e k /t F o kr S e l ec t
E 2-
L 1- 4 Y , 1- 4
C on rt ol - P o r du ct Lni k G ( aet wa y)
J -1 1
G -1 2 ,W 1 - 2
S wi ct h -C at M o n Ss yMo de S e el ct
C 6-
L -1 5 ,Y -1 5
C on rt ol - Tr an sm si is on C o n rt ol S sy et m
L1 - 8
H 1- 2, W- 12
S w i ct h- Di mm e r
H 1-
G 1- 6 X , 1- 6
CONN 16
C-18
F 1- 5 , G- 1 6
H 1- 2, W- 1 2
S w i ch t - D o w n hs fi t
F 7-
H 1- 3, X- 1 3
CONN 17
B-18
H 1- 3, X- 1 3
CONN 24
F-15
I- 1 5 , W - 1 5
C O N N2 5 S e vr ci eM od eP ul g
E 1- 5
H-13 ,X-13
D oi d e - B l o w e r Mo ot r
K 1- 5
H 1- 2, W- 1 2
G-3
S w i ch t - F i n e Mo d u al it o n
I-16 ,W-16
F 8-
Schematic Location
Connector Number CONN 14
E-18
CONN 15
D-18
Machine Location D-10 , U-10 I-12 , V-12 I-12 , V-12 I-12 , V-12 H-12 , V-12
0 04 1
8 V ol t DC S up pl y
1 3 9 1 4 1
R D P K
L HTa li /C el a r a n ec La m p s B e a oc n/ H e a et dMi rr o r s
G 7 5 0 G 7 5 5
B U G Y
X m s nC o n F t w d Sw To Gn d X m s nC o n R t e v S wTo G n d
D sp i al y- Gr o e n e e v dl Au ot ul b e
0168 0177 0 1 90
E l e crti c a l S y tse m V o lat g e Tranm s i s soi n O i l T e m p ear t u r e S e nos r E n gin e S p eedSe n s or
1 42 1 47
B U R D
C o n ve tr er 12 Vo tl Sw ti h c ed Ou t E C A P C / en et r D a sh In di a c ot r P a ne l
G 76 0 G 76 1
W H Y L
X m s nC on tS pe ed 2S wT oG nd X m s nC on tS pe ed 3 Sw To Gn d
Flasher -24 V
E-15
H-12 ,V-12
Switch -Forward H orn 2
CONN 26
L -13
F us e- Bl oc k
B 1- 5
H 1- 2, V- 12
S w i ct h- Fr on tI nt e r mi tt e n tW pi er W / as he r
D 5-
L1 - 5, Y- 15
CONN 27
H-12
H-12 , V-12
V o l at ge Co n ve tr e r Me m o yr Bat (+)
G 7 6 2 G763
B R PU
X m s nC o n S t p e e d 4 S w To Gn d Xmsn Cont Neut Sw To Gnd
K 1- 5
H 1- 2, W 1- 2
S w i ch t -Ha a z dr L a m p
H- 3
I- 1 6 W , 1- 6
CONN 28
H-9
H-13 , X-13
5 V ol t DC S up pl y Progra mmedParam e t e r F a utl R i de C o nt r olS wti c h
R D OR
F u se T - h em r a l Cu O t u t
0 26 2 0268 0 3 67
1 4 8 150
0368 0 44 4 0562
Tranm s i s soi n A u t o / M a n u a l S wtic h Sa t rt R el ay E l e crto n i c M o n itorin gSystem
1 5 1 1 64
G N W H
A lx eO l i Co o l e r Cl u t hc H d yo r C rt lW lt P o w e r rt ai nC rt l
G 7 6 4 G 76 6
P K G N
X m s nC o n P t a r kB ar e k Le e v rS wTo Gn d I m p lC on tS wT oG nd N O . .
0585 0 5 90
Tranm s i s soi n O u t p u t S p e d S e n s o r 1 E n gin e C o n tor l M o d ule
0 5 96 0 6 23 0 6 27
Imp l e me n t Co nrto l D ie r cito na l S wit ch P a kr i ng B r a ek P r e s uer S w .
0672 0673 0702
Tranm s i s soi n I n p u t S p e e dSensor Tranm s i s soi n O u t p u t S p e d S e n s o r 2 L e v e r S wtic h ( T r a n s m i s i o n S h itfi n g / D i r e c toi n )
0737 0793 0794
LeftBrae k PedalPosio t nSensor P r i m ayr S t e e r i n g P r e s s uer S w i t c h Second a r y S t e eirn g P r e s u s reSwith c
0 7 95 0 9 67
S e co n da r y St e er i ng R eal y Mah c i ne A p pi lc at i on
1 3 26 1 4 00 1 4 01
E C M Lo c at i o nCode R e ar A xel O i l C o l er S o l e n odi Ree v r se S o l e n odi
1 4 02 1 4 03 1 4 04
F ow r adr S o l e n odi F o ur t h Sp e ed C l uct h T hri d S p e d Cul t h c
1 4 05 1 4 06 1521
S e co n d S p e e d Clu ct h F i sr t S p e e d Cul t h c Part-h T r o t telA u t o s h tiS f e l e c t o rS wtic h
1 9 60 2 1 29 2274
I g nitoi n K e y R e a de r R i de C o nt r olS o l e n odi ( 1 ) Tranm s i s soi n D i r e cito n S w i thc # 2
2 3 47 2 6 84
R i de C o nt r olS o l e n odi ( 2 ) R i de C o nt r olS o l e n odi ( 3 )
Electronic Implement Control (MIDNo. 082) CID
Component
Switch -Quick Coupler
202 2 10
BK B K
Xmsn C trl C o n ve tr er Ou pt ut (2 4/ 1 2 V o l )t
H710 H 71 1
PK G N
Impl Cont Lift Lever P osition I m p lC on tT li tL ev e r P o s tioi n
C-7
H-1
G-16 , X-1 6
CONN 43
G-1
G-15 , W-15
G 1- 5, W 1- 5
K 3-
I 1- 6, W - 16
S w i ch t - T h ri dFu n c i t on Di ev tr e r
G 8-
H 1- 3, X- 1 3
H -1 2, W - 12
S wi ct h- T r an sm si si on Ge ar Se el ct or
I3 -
I1 - 5, W - 15
CCS Auto 1-4 T hr ot lt e Se ns or C om mo n
R es si ot r -C AN A
K 6-
I 1- 6, W- 16
S w i ct h- Tr an sm si is on S h i tf e r A ss em bl y
Basic M achineCircui ts S at rt er R el ay C oi l ot T a r ns mi ss oi n Co nt ro l
C-15
R el ay - He at ed Mi r or sT m i e r
GN
H730 H 79 5
BR PK
OR YL
K ey S w ot T a r ns mi s oi n Co nt ro l Main Power Relay C oil
J 76 4 P739
BR B U
Ta r ns mi ss oi n Sw ti ch S / en so r Re u t rn # 1 Axle Coole rClutch
S en so r- L e f tH a n d B r ak eP ed al
G 7-
H- 1 3 ,X 1- 3
Ta h c S/ pe e d o me et r
320 3 21
OR B R
Horn Relay C oil To Sw B ac u k p A l ar mL am pT ar ve l A l ar m
Y794 Y 79 5
OR G N
Expanded Can Data Link + E p x an de d C a nD at aL ni k-
Sensor -Th ottlle r P ositio n
G-1
G- 1 5 V-15 ,
Thermostat
S en so r- Ti tl Le e v r P o isit on
G 7-
H 1- 3 X , 1- 3
322 326
GY PU
Warnin gHorn f(orward) Key S w C' ' T erm.
818 819
B R GY
Serial Data (transmit) Serial D ata receive) (
GN B U
Led Driver 2 I n l et A i rH ea et r
A307 403 4 1 0
GY
Throttle Position Monitoring Circuits
GN W H
Altern a tor (R) Term. O p r Mo nA tcoi nA al m r
J807 J 8 0 8
BK B K
411 4 1 3
PK B R
Opr Mon Master O p r Mo nFu e l Pr e ss .
J809 J 8 1 3
BK B K
4 16 4 17
O R G Y
S up pl em en at l S t e ir ng S w P ir m a ry St e ir ng S w
G848 G 85 0
J 81 4 J 81 5
B K B K
A u to Di gM o d eS e l e c S t w . Po s# 2 A u to Di gK ci ok u t Se S t w . N (. O . ) Auto D ig K ickout Set Sw. (N.C.) Auto Dig Trigger Sw. (N.O.) A ut oD gi T ir gg er Sw .( N . C . )
B U P U
A u to Di gA u t oT ir g e r n I d i ac ot r Auto Dig Record Mode ndicator I
0364 0 3 65 0 4 87
L i f y C yi ln d e r H e a d E n d O i l P r e s s uer S e n s o r K i ck o u t S e t S wit ch 3rdLe v e r Po sti i on S e ns o r
C 4 1 4 E416
B U PU
CM SD si p l a y Lo a d Lift C yl P ress S ensor
T8 6 4 T866
B R YL
A u to Di gO p e ar ot rT ir g e r n I d i a c ot r Dump D etent
0490 0491
Imple m e n t L o cok u t S w i t h c 3 r d F u n cito n F o r w a r d S o l e n odi
E455 G479
BR WH
Hydraulic Oil Filter Prelube ndicator I
T869 T870
WH BR
Fine Modu ation l Sw 1 Fine M odu lation Sw 2
0492 0562 0590
3 r d F u n cito n R e a r w ardSoleno id C a t epr i l l a r M o n itorin gSystem EngineEle ctron icContro lModule
G480 G 48 5
GN B U
Fuel Level Low ndicator I O pr M o nF or nt B r ak eT em pe a r ut e r
900 9 01
P U W H
G 48 6
G N
O pr Mo n R e ar B ar e k Te mp er at ur e Accessory Circuits
9 10 9 4
Y L O R
0 9 65 0 9 67 1187
A u ot dgi D i g Mo d e S w ith c Mah c i ne A p pi lc at i on C o n tni u o u s F l o w R o c k e r S wtic h
1324 1 3 25 1 3 26
A u t o dgi O p e r a toi n M o d e S e l e tcS w i t c h A u ot dgi T rgi g er S w ict h E C M Lo c at i o nCode
1 5 92 1639 1 7 18
A u ot dgi K i ck o ut S e t Sw i ct h M a c hni e S e c u r y i tS y s t e m E C M F i ne M o du l at i on S wti c h
2326 2328
L o w e r A nit- D r ti fS o l e n o i d V avl e D u m p A n t-iD r itfS o l e n odi V a l v e
Volume 2: Cab ©2006Caterpillar AllRightsReserved
1
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Cat Data L ink Selector S w
W
W
Fork P osition S elect Autoshift- Auto/Manual Sw 2
V
V
U
U
Symbols
Wiper -Front (Park) Wiper -Front (Low)
OR BR
Wiper -Front Hi) ( Wiper -Rear (Park)
964 973
YL BU
Wiper -Rear L( ow) Wiper - Rear (Hi)
976 977
OR YL
Ride C ont Solenoid 1 Autoshift- Auto/Manual Sw 1
PU WH
Washer -Front Washer - Rear
987 A958
WH WH
Third F un ction D iverter S ol Park Brake Sol
508 5 09
PU W H
Radio Speaker -Left R a d oi S pe ak er - L ef (t Co mm o m )
A982 E 90 0
B R W H
Engine Throttle Cont T ar ns O ut p u tS pd +
T
T
511 5 1 2
BR G N
Radio Speaker -Right Ra d i oS p e a k e r - R i g h (t C o m mo n )
E901 E 9 0 6
GN O R
Trans O utput S pd Tr a n sO u t p u S t p d Q+
S
S
515 516
GY GN
Blowe r Motor (Hi) Blowe rMotor (Medium)
E907 E908
GY B R
Trans Ou tput Spd QTrans nput I Spd +
R
R
BU B R
517 5 1 8 5 21
BU O R Y L
Blowe r M otor L( ow) Ha a z dr Fl a s h e T r oS w AC / S wT oR e f ir ge a r nt S w
E909 E 9 1 7 E 91 8
WH W H G N
Trans nput I S pd Im p l e me nt Lo kc o u S t wTo Gn d( N . O .) I m p el m e nt L oc o k ut S wT oG nd ( N . C . )
Q
Q
5 22 5 3 7
W H G N
AC / Cl ut h c To Th er mo ts at Sw Tu nr Si g n a l Sw To Fl a s h e r
E 91 9 E 9 2 0
Y L B R
A ux Lo w e r P r op or it on al So l A u x Li t f Pr o p o r ito n a l So l
P
P
538 5 39
BR B U
Hazard ndicator I T u r n S i gn al In di ca ot r B a is c/ R i gh t
E921 E 92 2
PK G N
Rackback Proportional Sol D u m pP or po troi na l S o el no di
O
O
540 5 50
WH G Y
Turn Signal ndicator I Left A ux Hy dL ef -t Di c s on ne tc To S w
E955 K 92 7
OR B U
PCS Keyp a d Data O n/ O f fP li ot So el no di Re ut nr
N
N
M
M
BR GN
Temp Potentiometer Pos 2 Temp Potentiometer Pos 3
N960 N963
OR OR
Txd - Comm #1 Txd - Comm #3
A541 C529
PU GY
FlasherToIndicatorLights Lift Pr ess Sensor
N970 N973
YL BR
Dtr-Comm#1 Dcd - C omm #1
C530 C542
BU GN
Lift Po ition s Sensor Heated Mirror Power
N979 N981
GN GN
Signal Gnd -Comm #1 Signal Gn d- Comm #3
C 5 4 3 C 58 3
G Y G N
A u x He a te rB ol w e r + 2 4 vR el ay To A C / Co nt o r lM od ul e
P 9 1 0 P 91 5
B R P K
S e co n d a r yS et e r ni gTe ts Sw n I p u t X m s nN eu rt al In di a c ot r X m s nN e u rt a l Sw tci h A n ti Dr fi S t o l -S i t k c
T
Pressure Symbol
Temperature Symbol
3E-5464
Fu ncti on
Ac t uate
A/C T hermostat
Deac t uate
- 1. 1 ±0 8. C °
2 2. ± 0. 8° C
( 30 ± 1 4. F ° )
( 36 ± 1 4. F ° )
Contact Posi t i on
L
L K
J
J
Flow Symbol
Circuit Breaker Symbol
Fuse -Acomponentin anelectricalcircuit thatwillopenthe circuitiftoo muchcurrentflows throughit.
NormallyClosed
Switch (Normally Open): Aswitch that willclose at a specified point (temp, press, etc.). The circleindicatesthatthe componenthasscrewterminalsanda wirecanbe disconnectedfromit. Switch (Normally Closed): Aswitch that will open at a specified point (temp, press, etc.). Nocircleindicatesthat thewirecannotbe disconnectedfromthecomponent. Ground (Wired): Thisindicatesthat thecomponentisconnectedto agroundedwire.The groundedwireisfastenedto themachine. Ground (Case): Thisindicatesthat thecomponentdoesnothave awireconnectedto ground. Itisgroundedby beingfastenedtothe machine. Reed Switch: Aswitchwhosecontacts arecontrolledbya magnet. Amagnetclosesthe contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch. Sender: Acomponentthatis usedwitha temperatureorpressuregauge.Thesender measuresthetemperatureorpressure. Itsresistancechangesto giveanindication to thegaugeofthe temperatureorpressure. Relay (Magnetic Switch): Arelayis anelectricalcomponentthatis activatedbyelectricity. It has a coil that makes an electromagnet when current flows through it. The electromagnetcanopenorclose theswitchpartof therelay.
Resistor, Sender and Solenoid Specifications Part No.
K
Level Symbol
Symbols And Definitions
Off MachineSwitch Specification Part No.
T
Component Descri pti on
9 G- 19 50
R es si ot :r
134-2540
Resistor:
Resi s t ance (Ohms )¹ Overall: 2.0 ±0.1 Tap 1.0 ±.05 120
B ol w e r M o ot r S p ee d CAN
Solenoid: Asolenoidis anelectricalcomponentthatis activatedbyelectricity. Ithasa coilthatmakes anelectromagnetwhencurrentflowsthroughit. The electromagnet canope norcloseavalve ormove apieceofmetalthatcandow ork.
¹ Atroomtemperature unlessotherwisenoted.
MAGNETICLATCHSOLENOID -Amagneticlatch solenoidisan electricalcomponentthatis activatedbyelectricityand heldlatchedby apermanentmagnet.Ithas twocoils(latch andunlatch) that make electromagnet when current flows through them. It also hasan internalswitch that places thelatchcoil circuitopenat thetimethecoil latches.
Harness And WireSymbols I
I
H
H
D a t a v ai ld b u t b e l o w n om r alopera tionalran ge.
F5 2 3 F5 2 4
P U B R
Te m p Po et n t oi m e et P r o s 1 Te m p Po et n t oi m e et P r o s 2
P 9 1 6 P 9 4 5
O R O R
2
Data e r r a t i ,c i n t e r m i tet n t , o irn c o rer c t .
F5 2 5
G N
3
V otl a g eaboe v n om r alorh s o tr e d hig h.
Te m p P o et n t oi m e et P r o s 3 Lighting Circuits
P 9 4 6 P 97 6
B R BR
A n ti Dr fi S t o l -B o m Q ui ck C ou pl er S w T o L ow P er ss ur e So l
Rotary B eacon Stop Lamp
P990 T901
BR YL
Start R elay C trl R eturn MSS Exciter Coil In
G
G
603 604
PK OR
605 606
YL GY
T902 T969
PK YL
MSS E xciter Coil Out Third Fun tion c Control Flow Switch
F
F
6 0 8 6 1 0
G N O R
Fl o dL a m p- Re a r He a dL a m pB a s ci
T9 7 0 X 9 7 2
G Y G N
Th ri dFu nct oi nC o n rt o l Fl o w Sw ti hc P a r Th t or ttel A u t oS h i tfP o si it o n1
E
E
611 6 1 4 615
PU P U YL
Head Lamp Hi P a r /k T a l iD/ a sh L/ a mp Cab Flood Lamp/Rops
X973 X 9 7 4 X998
B U B R B R
Part T hrottle Auto Shift Position 2 P a r th T or ttel A u t oS h fi t P o isit o n3 Digital Sen or s Return
D
D
617
BR
T al i/ po sti i o n Lam p - L etf ( R o ad Pg k )W / i dt h
Turn L amp - L eft Turn Lamp -Right
PrintedinU.S.A.
Harness And Wire Electrical Schematic Symbols
BR GN
A524 A525
C on di it on n ot m e t.
12
506 507
¹TheCID isadiagn osticcodethatindicates whichcircuitisfaulty.
Mod uleno t r e sp o nd i ng .
11
504 505
²TheMID isadiagn osticcodethatindicates whichelectroniccontrolmodule diagnosedthefault.
S e ns o r u s p pyl f a u lt.
10
502 503
Trans Oil T emp S ensor R di e C o nt or l S o el no di 2
P a ar m e terno tava i l ab l e .
9
500 501
Rxd-Comm#1 Rxd-Comm#3
P a ar m e t e r af iul r es .
8
X
PK G N
P a ar m e t e r af iul r es .
7
Y
PK PK
19
6
X
K977 N 93 9
20 P a ar m e t e r af iul r es . ¹TheFMIisa diagnosticcodethatindicates whattypeoffailure hasoccurred.
5
Y
Xmsn Shift Sol No. 5Or 4 X m s nS hi tf S o l N o .6 X m s nN eu it e z r O v e r ir de In di ca ot r Ca D t a ta Li n k +
N957 N959
17
4
Z
A/C S w Jumper D C / D C Co nv e r et rP ow er Ou pt ut
18
3
BB
DC/DCConverterMemoryOutput TempPotentiometerPos1
16
2
AA
RD PU
14
L1 - 4 Y , 1- 4 I- 1 6 ,W 1- 6 H-12 ,W-12
Z
WH B U
15
I- 1 5 ,W 1- 5
D 3J- 1 K-15
BB
567 5 92
B a d de vci e o r co m po n en t .
I 1- 5 W , 1 - 5
I- 2
S w i ct h- V a r ai bl eS hi tf Co nt or l
AA
A513 A523
O u t of c ailb a r toi n .
H 2-
S w i ch t -Tu nr Si g n a l
G 1- 5 W , 1- 5
I m p el m e nt P or po troi na l R e ut n r R di e C o nt o r l S o el no di sP or po tr oi na lR et u r n
OR Y L
12
H- 1 3 ,X 1- 3
H 1-
Proportion a l Return (Forward) Im p l e me nt Pr o p o r ito n a l Re ut nr
G N G Y WH
BR BR
F- 7
S e n o s -r Li tf L e ev rP o si it o n
Proportion a l Return (1-3) P or p o tir o n al Re ut nr (4 R/ e v)
T8 6 2 T863
945 961
S e n o s -r 3r dL e ve rP o si it o n
K-3
S w i ct h- S e c o n da yr St ee ir ng Te st
3 06
T860 T 8 6 1
13
Switch -Running Lamp
H 1- 2 V , 1- 2 H- 1 2 , V 1- 2
3 07 308
T8 5 7 T8 5 8 T859
F al iu e r moden o t i de n itfai bel .
H-12 ,V-12
D 1- 5
972H: A7D1-UP A7G1-UP A7J1-UP
I 1- 6, W- 16
CONN 42
L 1- 4 Y , 1- 4
H- 1
S w i ct h- T h ri dF u n ctoi nC on rt ol Fl ow
H 1- 2, W- 1 2
K -1 6
P ir m a yr Ste e r ni gL a mp CMS Display D ata
A b no r m a l r aet o f c ha n ge .
F 2-
I-16 ,W-16
D2 -
S w i ch t - S ot pL a mp
H 1- 2, W - 12
L 1- 4
Tach Sender (+) S up pl em en at l S t e ir ng Fa ul tL am p
A bn or ma l up da e t .
C 2-
C 1- 5 L 1- 4
R e si tso rA C/ (2 ) R es si ot r- Bl ow er M oo t r
Hy dS s y et mT e mp Ga g e P o we rT ar ni Te m p Ga g e Fuel Level Gage
Mecha nicalss y t e m n o t r eps o n d i n g p r o p e r l .y
C O N N4 1 S er vi e c T o lC on n
S w i ch t - R i d e Co n t or l
R e l a y-R e a rFl o d l a m p R es si ot rA C / (1 )
Y L YL
Abnorm alfrequen cy,pule s w i d t h , o r p eiro d .
L 1- 4, Y- 1 4
H- 1 2 , V - 1 2
Impl Cont Tilt Cyl Position XmsnContL.Brake PedalPositionSens
Relay -Forward Horn
966H: A6D1-UP A6G1-UP A6J1-UP
K -1 5 , Y- 15
CCSAuto 3 CCS Auto 2
YL P K
Curre ntabovenorm a l o r g r o u n d e d cric u i.t
I-16 , W-16
GY GN
G Y Y L PK
9
I-15 , W-15
F-3
GN WH
4 8 4 C413
7
H-3
CONN 40
H718 H722
450 4 53
8
CONN 39
L-14 ,Y-14
H728 H729
4 4 2 4 4 3 447
6
H-13 ,X-13
D-1
Transmission CtrlBImplement Return
Dum pSole n odi Rak c b ac k S ole no i d P iol t P e r s su r e So l e n oid
11
H-7
Switch -Reversing Fa n
CMS Clear ImplementCtrlB-
T itl L e e v r P o istoi n S e n sor R asi e S ole no i d L o we r S oel n oid
10
Switch -Remote FNR
H-12 ,V-12
P ay ol ad Mo n- Cu st o m er G n d P a yl o a dM o n - S ys et mG nd CMS S ervice
T i l t L i nak g e P o s i toi n S e n s o r L i tf L e e v r P o istoi n S e n sor
V otl a g ebelo w n om r alorh s o tr e dol w .
G-12 ,W-12
K-11
L-11 , U-11 L-16 , U-16
BK BK
0 3 56 0 3 57 0 3 58
C urre nt b e l o w n om r a l or o p e n icr u c i .t
I-16 , W-16 I-16 , W-16
D -7
BK BK
0 3 53 0 3 54 0 3 55
4
I-3 I-3
K -7 K -7
B K B K BK
0351 0 3 52
5
L-11 , Y-11
CONN 37 CONN 38
P CS C us ot me r Da at C on n
966H and 972H Wheel Loader Electrical System
L-16 , Y-16
C ON N 36
L 1- 4, Y- 1 4
C-15
G-3 E 1-
L-7
CONN 34 CONN 35
L-14 ,Y-14 L-14 ,Y-14
E 4-
Radio -Product Link
Switch - Key Start S w i ct h- L fi T t li tK ci o k ut Se t
L-7
I-16 , W-16 L 1- 4 Y , 1- 4
C-2 D-1
Relay -Axle Cooler
C 1- 5
G 8-
S w i ch t - R e a r Wi p e /r W a hs e r
I- 1 2 , V - 1 2
R e l a y -F o r w a dr Ca bF ol o d al m p
S w i ct h- Im pl em e n tL oc o k ut
K-15 , Y-15 H 1- 2, W- 12
K 1- 4
2 50 2 5 1 290
A ut oD gi M o d eS w. Po s# 4 Auto D ig Mode S elect S w. P os # 1
Fa li ur eD s e cr pi it on
Keypad - WLPCS
A273 C216
B U WH
D a t a v ai ld b u t a b o v e n om r alopera tionalran ge.
J oy tsci k- Im pl em e n tC on rt ol
291 A272
T 8 5 5 T856
1
CONN 33
Switch -Neutral Override
H-17 ,W-17
O pr Mo n P o w e r rT ai n O i lF li et rJ um p e r Lamp ndicator I
0
H1 - 3X , 1- 3
H-12 ,W-12
I-1
O R YL
F M IN o.
H 1- 3 X , 1- 3
L-16
M o to r- Re a r Wi p e r
4 36 439
FailureModeIdentifiers (FMI)¹
CONN 32
I7 L1 - 5
Motor -Blower Motor -Front Wiper
Axle C oole r R elay A u to Di gM o d eS w . Po s# 1
T h e fD t etere nt Outp u t D r iev r # 1 T h e fD t etere nt Outp u t D r iev r # 2
L-15 , Y-15
M ot o r - Bl en dD oo rA ct ua ot r
Auto D ig Mode S w. P os # 2 A u to Di gM o d eS w . Po s# 3
E l e crti c a l S y tse m V o lat g e D at a Li nk ECMInte rnalBacu k p B a t t eyr
D-8
X m s nC o n R t e mo et Fwd Sw To Gn d Xmsn Cont Remote Rev Sw T o Gnd
OR Y L
1391 1392
CONN 31
L -1 5, Y - 15
Impl Cont Kickout Sw 1 Impl Cont Kickout Sw 2
T853 T8 5 4
0168 0 24 8 0817
L 1- 5, Y- 1 5
D5 -
ImplContReversingFan Sw(N.O.) I mp l Co nt R ev er si ng F an S w N ( C . ).
Opr M on Air F ilter O p r Mo nB ar ek Pr e ss (. o i )l
Component
D- 6
S wi ct h- H V AC T em pe ra ut re Se el ct
G N YL
BU P K
CID
S w i ch t -HV A C Se el tc
I -1 6, W - 16
OR B U
430 4 3 2
MachineSecurity System (MIDNo. 124)
I 1- 6, W- 1 6
K -1
PU YL
Progra mmedParam e t e r F a utl T r an s m i s iso n Co n rt o l L i f t L i nak g e P o s i toi n S e n s o r
A l et r na t or " R " Te r min al
K 1-
H708 H709
0268 0 2 96 0350
1 2 51
I n d ca i ot -r Le tf H a n d Pa n e l I nd ci at or -R gi ht H a nd Pa ne l
G 7 8 7 G788
PU G Y
E l e crto n i c C o n trolModu le S e ns o r P o w e r Su p ply R e m oet C o m m u nci a t i o nModule
H-12 , V-12
H702 H 70 3
J887 T8 5 2
E l e crti c a l S y tse m V o lat g e
F-9
Main C hassis Operator Monitor Return
Opr M on Parking Brake O p r Mo nP o we rTr a i nO l i Fi tl e r
0254 0 2 69 1250
H-13 , X-13
CONN 30
8VoltSensor Supply+ Ground Circuits
YL B R
0168
G-9
I-16 ,W-16
Un w s i ct h e dB u s Po w e r Hood Actuator
419 4 2 6
Component
CONN 29
J-3
Quick C oupler Transmission ECM
8 V ol t DC S up pl y E l e crti c a l S y tse m V o lat g e
Product Link Radio (MIDNo. 122)
Switch -Heated M irror Switch -HID Lamp
BK BK
0 04 1 0168
CID
I-16 W , -16 I-16 W-16 ,
OR
L-14 ,Y-14
H 1- 2 V , 1- 2
J-1
R D RD
E-2
H-12 , W-12
K-1
GN RD
I m p lC on tL fi tP or po troi na l S o l Im p l Co n t Lo w e rP or p o troi n a S l ol Impl Cont Pilot Press Sol
I- 3 G-7
Indicator -Center D ash
1 7 4 199
P K O R BR
Impl Cont Sw To Gnd N .C. Xmsn Cont Speed 1Sw To Gnd
S w i ch t - F ow r a r dH o r n
168 170
H 71 3 H 7 1 4 H717
WH GN
Guage -Qu ad
L 1 - 5, Y- 1 5
A105 200 201
G767 G768
F 6-
1 2
Related Electrical ServiceManuals Title M a c hi ne S e c u r ti yS s y et m: P or d u tc Li n k Ra d i o :
C
C
B
B
A
A 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Form Number R EN R 2 46 2 R E N R 7 9 1 1
P o we rT ar ni Co n tr ol :
R E N R 8 8 4 6
I m p el m e n t Co n tr o l :
R E N R 8 8 5 8
C a t er pill ar Mo ni ot ir ng S sy et m:
S EN R 1 39 4
P ay ol ad Co nt or l S y ts e m :
R EN R 6 29 3
1 2
Deutsch connector: Typicalrepresentation ofaDeutsch connector. Theplugcontainsall socketsandthe receptaclecontainsall pins.
C-C4 AG-C3 130-6795 130-6795
PartNumberfor ConnectorPlug
HarnessConnectorSerializatio nCode:The"C"stands for"Connector"andthenumber indicateswhich connector in the harness. (C1, C2, C3, . ....)
AG-C4 111-7898
Socket
L-C12 3E-5179
Part Number For ConnectorRecepticle
1
325-AG135PK-14 Pin
Sure-Sealconnector:Typicalrepresentation ofaSure-Sealconnector. Theplugandreceptacle containbothpinsand sockets. HarnessIdentificationLetter(s): (A, B, C, ..., AA, AB, AC, ...)
Wire,Cable,orHarnessAssemblyIdentification: IncludesHarnessIdentificationLettersandHarness ConnectorSerializatio nCodes
Receptacle
5A Pin or Socket Number
SingleWire Connector
9X-1123
Fuse (5Amps) Component PartNumber
Plug Harnessidentificationcode: Thisexampleindicateswire 135inharness"AG".
200-L32BK-14
2 Ground Connection
CircuitIdentification Number
WireColor
WireGauge
2 L O V 1 e 0 - g a P 2 6 3 3 3 6 R N E R
