FreedomLine® Transmission WARNING To prevent serious eye injury, always wear safe eye protection when you perform vehicle maintenance or service. When you work on an electrical system, the possibility of electrical shock exists, and sparks can ignite flammable substances. You must always disconnect the battery ground cable before you work on an electrical system to prevent serious personal injury and damage to components.
For Complete Maintenance and Diagnostics Information Information on the FreedomLine ® Transmission Refer to ZF Maintenance and Diagnostics Manual MM-0150, FreedomLine® Transmission, for complete maintenance and diagnostics information. To order this publication, contact the OnTrac Service Center at 866-668-7221, or visit the Tech Library at meritorhvs.com.
Active Fault Codes NOTE: All active fault codes will steadily display for approximately 1-1/2 seconds each. Ignore fault codes that flash. flash. When the TCU has listed all active fault codes, the list will repeat. 1.
Press Press and and hold hold the the NEUTRA NEUTRAL L butt button on and FUNCTION FUNCTION button at the same time. The TCU will begin to list the active fault codes on the instrument panel display.
2.
Reco Record rd the the ffau ault lt code codes. s.
3.
When you’re you’re finish finished ed retrievi retrieving ng fault fault codes, codes, release release the NEUTRAL and FUNCTION buttons. Turn the ignition igni tion OFF OF F.
Inactive Fault Codes NOTE: All inactive fault codes will steadily display for approximately 1-1/2 seconds each. Ignore fault codes that flash. flash. When the TCU has listed all inactive fault codes, the list will repeat. 1.
Press Press and and hold hold the the NEUTRA NEUTRAL L button button,, FUNCTI FUNCTION ON button and service brake at the same time. The TCU will begin to list the inactive fault codes on the instrument panel display.
2.
Reco Record rd the the ffau ault lt code codes. s.
3.
When you’re you’re finish finished ed retrievi retrieving ng fault fault codes, codes, release release the NEUTRAL and FUNCTION buttons, and the service brake. Turn the ignition OFF.
Before You Make a Warranty Repair on ® a FreedomLine Transmission Call OnTrac OnTrac Customer Service Center at 866-668-7221 for approval. You’ll be asked to provide the transmission’s model number, mileage, in-service date, serial number, number, VIN number and the reason r eason for the repair.
Fault Codes and an d Volt-Ohm Volt-Ohm Meter Me ter (VOM) Diagnostics ZF FreedomLine® transmission control unit (TCU) uses a series of fault codes to identify system malfunctions that the TCU detects and stores into memory. After you retrieve a fault code from the instrument panel display and identify the fault, use a volt-ohm meter (VOM) to test the area where the fault code indicates that the malfunction has occurred. An authorized distributor/dealer distributor/dealer should repair the fault.
How to Retrieve Active and Inactive Fault Codes from the Instrument Panel Display NOTE: The vehicle must be stationary to retrieve r etrieve active fault codes. 1.
2.
Park the vehicl vehicle e and set the the parking parking brake. Turn the the engine OFF, OFF, but leave the ignition igniti on ON. Prepare to record the fault codes before you begin to retrieve them from the instrument panel display. Use the following following procedures procedures to retrie retrieve ve active active and inactive fault codes.
To View Active or Inactive Fault Codes Again Repeat the previous steps.
How to Clear Inactive Fault Codes from TCU Memory NOTE: Inactive faults are repaired active faults that have not been cleared from TCU memory. 1.
The vehicle vehicle must must be be statio stationary nary to clear clear inactive inactive fault fault codes. Park the vehicle and set the parking brake. Turn the engine OFF. Turn the ignition OFF.
2.
Press Press and and hold hold the the NEUTRA NEUTRAL L button button and and the the FUNCTION button at the same time.
3.
Turn the the igni igniti tion on ON. ON. Do not start the engine. engine. Count to three and release both buttons.
4.
Count Count to thre three e and pres press s and hold hold the the NEUT NEUTRAL RAL button and the FUNCTION button at the same time.
5.
Turn the the ignition ignition OFF OFF. Count Count to three three and and release release both buttons. The fault codes will be cleared from TCU memory.
FreedomLine® Transmission Instrument Panel Display
What to do if a System Malfunction Occurs
Status
Display
The system is performing a self-check.
CH
The transmission is in Neutral.
N
2. 3.
▲ = ▼
▲ ▼
▲ = ▼
No Manual mode (example shows 12th gear engaged)
12
Reverse Low is engaged.
RL
Reverse High is engaged.
RH
System Malfunction
SM
System air is low.
AL
A clutch overload occurred.
CL
Clutch wear indicator (the clutch requires replacement)
CW
NO DATA (the SAE J1587 info is absent)
––
The display line between the main transmission control unit (main TCU) and the ZF-FreedomLine transmission electronic controller (ZMTEC) is fau lty.
EE
PTO 1 is activated. The transmission is in Neutral.
▲
PN
PTO 1 and 2 are activated. Third gear is engaged as a starting gear.
▲ ▼
P3
Neutral Shift Timeout
NS
No Automated mode (example shows 12th gear engaged)
1.
12
Apply the brakes to slow the vehicle. Safely move the vehicle to the side of the road. Stop the vehicle. Apply the parking brake. Call for assistance.
System Self-Check Status “CH” will display on the instrument panel while the TCU performs a system self-check. A self-check is performed when the ignition is turned ON. Typically, the self-check continues until the engine is started, but can last longer if the TCU is being powered-up for the first time. If the system self-check continues after the en gine is ț started: Contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
System Air is Low
All truck OEMs except Freightliner LLC: The system was designed to react as follows when the vehicle idles for extended periods while in-gear: ț Between 0 and 14 minutes: no outward changes ț Between 14 and 15 minutes: “NS” on the display, and you may have an audible alarm depending on vehicle configuration. ț 15th minute: Transmission attempts an automated shift to neutral Any changes to service brake, accelerator pedal, gearshift position, etc., reset the timer. Timer was designed to not run during PTO operation or in the event of certain critical faults.
System Malfunction Warning WARNING If a system malfunction occurs, the instrument panel display illuminates “SM” for system malfunction, and the shift module emits a single beep. When this warning occurs, you may be unable to shift the transmission. Do not continue to operate the vehicle. Serious personal injury and damage to components can result. Safely move the vehicle to the side of the road and call for assistance. If a system malfunction occurs, the instrument panel and shift module displays will alert you that the shift controls are not operable. The instrument panel display illuminates SM for system malfunction. The shift module emits a single beep.
WARNING If “AL” displays on the instrument panel, the transmission control unit (TCU) has determined that system air pressure is low. Apply the brakes and safely move to the shoulder of the road. Shift into neutral and idle to allow air pressure to build-up. Do not drive the vehicle with “AL” on the display. Serious personal injury and damage to components can result. “AL” will display on the instrument panel if the TCU determines that system air pressure is low. Apply the brakes and safely move to the shoulder of the road. Shift into neutral and idle to allow air pressure to build-up. Do not dri ve the vehicle with “AL” on the display. Do not turn the ignition OFF with “AL” on the display. The vehicle may shut down in gear and not start until air pressure is built-up again.
Clutch Overload Status WARNING If “CL” displays on the instrument panel, the transmission control unit (TCU) has determined that th e clutch is hot. Apply the brakes and safely move to the shoulder of the road. Shift into neutral and idle to allow the clutch to cool. Do not drive the vehicle with “CL” on the display. Serious personal injury and damage to components can result. “CL” will display on the instrument panel if the TCU determines that the clutch is hot. Apply the brakes and safely move to the shoulder of the road. Shift into neutral and idle to allow the clutch to cool. Do not drive the vehicle with “CL” on the display.
Clutch Wear Warning WARNING If “CW” displays on the instrument panel, the transmission control unit (TCU) has determined that the clutch is worn. Replace the clutch. Do not drive the vehicle more than 1,000 miles (1610 km) with a worn clutch. Serious personal injury and damage to components can result. “CW” will display on the instrument panel if the TCU determines that the clutch is worn. Replace the clutch. Do not drive the vehicle more than 1,000 miles (1610 km) with a worn clutch.
FreedomLine® Transmission C I T S I R E T Y T C E A F R A A S H = C
a 3 7 3 6 0 0 4
C L T A L E R E D V B O G O U W W S S N N T T T T D D D U U U U E E V I N N I N N N O O O O V I 2 4 N V G G G V V V V 1 2 V V
R O D E S E N P E S S 5 J
N O I S S S S I E N M R S A N H A R T
1 2 3 4
4 J
2 0 1 1 1 1 2 3 4 5 6 7 8 9 1
Z F T C U O + Y G A L D 9 N H L 9 I G N V V N E C 3 E 3 P 4 4 V A I C 9 4 I A 2 2 A P 9 1 S 1 2 D C + + C S J D A J 1 J
K L C A O L R T R E U E T N N I
D D N N G G
2 3 4 5 6 7 8 9 0 0 1 1 1 1 2 3 4 5 6 7 8 9 1 1 1 1 1 1 1 1 2
2 J
1 2 3 4
M A R N G T H L V V V A 4 R O N V 2 4 2 2 I I O 1 2 1 ) A N N ) ) ) T I D ) ) - + T A A T ) + ( + ( + ( + ( - ( ( S C - C A A ( 7 7 9 G C I C Y Y N N Y 8 8 L 9 3 3 I N 5 5 A 9 9 F R R I R 1 F I I I O E 1 R 1 1 I E O T E J J R T I T T J J T Y T N T T I I A T T N N T E E U L E E N E A A A E E A A W G I G A D B A B I B S S N R S S E E D I I N I L R O M L R O O D O L E C O E C R F
D R G N A 3 K 2 K I K 3 J H S N A 2 J H S N A 1 J O / I G I D 3 H O / I G I D 2 H O / I G I D 1 H W O P L S 3 G O / I G I D 2 G O / I G I D 1 G
C E T M Z
O S I
3 F
P S I D F Z 2 F V E L H S 1 F W S L S 3 E 7 8 5 1 J 2 E + 7 8 5 1 J 1 E H S N A C 3 D L N A C 2 D H N A C 1 D 3 C Y A L E R 2 C Y A L E R 1 C 3 B Y A L E R 2 B Y A L E R 1 B D R G 3 A N G I 2 A V 2 1 1 A
3 J
E S I U D R A C - P Y N - E T F K I H S
6 5 4 3 2 1
8 J
S S E N R A H T A E S
0 2 1
1 1 J
E L U D O M T F I H S
7 J
L V W E G B D A J H C F P R S K N M X T U
9 J
A B C D E F
6 J
A B C
C I S R T L C A R E L O H H E N I D C C D S S N T T R M E R V U U A K P P C U U E E E A A A T D D P 1 1 & 1 4 4 3 1 1 L 6 S 1 2 6 - 1 R A 1 - - 4 1 1 3 N 2 O I 0 1 0 7 0 4 1 - 3 T M 2 - 2 - 2 - 8 2 2 4 1 0 6 C R 0 1 3 E 6 6 2 6 2 E T 6 7 4 4 4 N 0 0 0 1 6 1 N R 8 W 0 5 O O 0 1 C T 2 8 1 1 - 4 C E 4 - 3 D E 5 3 7 - 8 - 2 2 3 2 E N 6 6 5 0 9 N 0 R T 2 P 0 6 4 I O 0 2 0 7 U C D H 1 2 1 Q N E O R I T 2 0 A M C 6 7 9 1 2 E O J J J J J O L
6 5 4 3 2 1 6 1 5 1 4 1 3 1 2 1 1 1 0 1 9 8 7
2 1 1 1 0 1 9 8 7 6 5 4 3 2 1 0 1 J
A B C
2 1 J
Y A L P S I D M F Z
E 1 B 1 H T T 9 . T . S S I T 3 U 9 C W O U 1 E M E O M J P F G R E S G I R N 5 A N W I E I 1 S R P I R R I 9 I O 3 S W A T 9 W 1 7 P T 9 M S 3 J I 8 D 5 E W 9 R E 1 T T 1 O J S J F A S I 1 E E ± N S A R W O 2 A E S T 1 S C O T O N 1 2
6 5 4 3 2 1 0 2 J G I C S N T E I R A T I O M W E N H D M E C N O S A
N N E E O I O M E S S T M U U U A C M T S E A P P E R N O C - S - - W W U K N E O O F C I T E L E L A H R L L L E E B W G Y Y
E S U
E G
U N F A A G ) ) Y Y O 0 I A 2 - + A L T 3 ) 1 ( ( L E + ) C ) ( - B A R E + R 7 E ( 7 N ( 8 8 L E Y 5 Y G N R 5 A S U R O 1 1 R R U I E J F E T A T I T J T E V T G N T E E U A A A E E A 2 G B 1 I B S S N R
C
R 1 2 D N E V R R G E E E R L V V E N E E V M O L L E E I T H H L O H L C N S S S A U G G N F G O O O O L L L I T A A P A N O N N A
A A
E Y G A L
E Y G A L
D E D E N E E L R L R O I W E H W E T H C O G C O G A N N A C T T I G I K G N W K C N W C N U S A E S A E F 1 1 1 2 2 2 O O O O O O T T T T T T P P P P P P
C
H N H L S O N N N I A A T A - C - C C C 9 9 9 N 3 3 3 9 1 9 1 9 U 1 F J J J E E E A A A S S S
R . N O T O I C E T A N M N R O O C F R N I O F L E A L N I B M A T R E E E T S & 3
FreedomLine® Transmission Fault Code Diagnostics SAE J1587 Fault Codes
Instrument Panel Display PID/ Fault SID Fault Codes Fault Description
Repair Instructions NOTE: The following repair instructions pertain to active faults only. For information and instructions about inactive faults, please contac t the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
SID
20
14
Output ADVP fault (wakeup control signal for ZMTEC and voltage doubler and voltage supply to output shaft speed sensor #1)
Remove and troubleshoot the FreedomLine® vehicle wiring harness. Pin 11 of the TCU connector, pin 10 of the voltage doubler, pin 1 of the lower output shaft speed sensor (sensor #1) and pin A2 of the ZMTEC should all have continuity (resistance of 0.0 to 0.5 ohms) and not be shorted to any other circuits. If a short circuit or open circuit is found, replace the wiring harness. If not, replace the lower speed sensor (sensor #1).
PID
21
15
ECU temperature too high or ECU temperature sensor fault
Check for obstructions within the transmission cooler, cooler lines and by-pass valve. Check the oil level. Both low and high oil levels can lead to overheating. If the coole r and lines are okay, replace the TCU.
PID
31
1F
Range position sensor fault
Test drive the vehicle to verify that the transmission shifts to Neutral without request. Contact the OnTrac Service Center at 866-668-7221 with the results and request a transmission specialist.
PID
32
20
Spli tte r po sition sensor self fa ult
Test d ri ve th e vehi cle to v erify that the trans missio n shift s to Ne utral w ithout requ es t. Contact the OnTrac Service Center at 866-668-7221 with the results and request a transmission specialist.
PID
33
21
Clutch actuator fault
Check the air supply for a pinched line. Check the clutch for failure to stroke. Check the release fork for failure to stroke. Verify that the release bearing is correctly engaged to the clutch. Check the FreedomLine® transmission wiring harness for connectivity (0.0 to 0.5 ohms). Check the voltage across pins 15 and 20 of the clutch actuator assembly connector (4.75 to 5.25 VDC).
PID
34
22
Clutch actuator solenoid fault
Remove the FreedomLine® transmission wiring harness. Check for continuity (0.0 to 0.5 ohms) from pin 9 of the main TCU connector and pin E of the clutch actuator connector; pins 7 and A; pins 12 and D; and pins 8 and B. Check for shorts to the other circuits. If an issue is found with the wiring harness, replace it. If not, replace the clutch actuator assembly.
SID
35
23
High range solenoid (Y9) fault
Contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
SID
36
24
Low range solenoid (Y8) fault
Contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
SID
37
25
Spl itte r di rect so lenoid (Y2) fa ult
Conta ct the O nTrac Servi ce Cen ter at 8 66-66 8-722 1 an d r eques t a tra nsmissi on spe cialist .
SID
38
26
Spl itte r in direct soleno id (Y3) fault Conta ct the OnTrac Servi ce Cen ter at 866-66 8-7221 an d r eques t a tra nsmissi on spe cialist .
SID
39
27
Rail select #1 solenoid (Y4) fault
Contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
SID
40
28
Gear engage #1 solenoid (Y6) fault
Contact the OnTrac Service Center at 866-668-7221 and request a tran smission specialist.
PID
43
2B
Error on “ignition lock” signal (terminal 15)
Remove and troubleshoot the FreedomLine® vehicle wiring harness. Pin 11 of the TCU connector, pin 10 of the voltage doubler, pin 1 of the lower output shaft speed sensor (sensor #1) and pin A2 of the ZMTEC should all have continuity (resistance of 0.0 to 0.5 ohms) and not be shorted to any other circuit. If a short or open circuit is found, replace the wiring harness. If not, replace the lower speed sensor (sensor #1).
SID
48
30
Gea r enga ge po sition s ensor fault
Test d ri ve th e veh icle to verify that th e trans missio n shifts to N eutral withou t reque st. Contact the OnTrac Service Center at 866-668-7221 with the results and request a transmission specialist.
SID
50
32
Rail select #2 solenoid (Y5) fault
Short circuit to ground of the output ADVP (wakeup control signal for ZMTEC and voltage doubler and voltage supply to output speed sensor #2).
SID
51
33
Gear engage #2 solenoid (Y7) fault
Contact the OnTrac Service Center at 866-668-7221 and request a tran smission specialist.
SID
54
36
Inertia brake solenoid (Y1) fault
Contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
SID
55
37
Clutch engagement/disengage fault
Check the system air pressure for 120 psi. Check the clutch actuator, release fork, push rod and clutch assembly for damage. Replace as necessary.
SID
56
38
Range shift engagement/ disengage fault
Test drive the vehicle to verify that the transmission does not range shift correctly. Contact the OnTrac Service Center at 866-668-7221 with the results and request a transmission specialist.
SID
57
39
Shift lever fault or private CAN fault
Check the wiring harnesses connecting the shift lever to the transmission for open circuits and shorts. Check the FreedomLine® vehicle transmission harness for open circuits and shorts in the private CAN circuit (pins D1 and D2 of the ZMTEC and pin 3 and 7 of the main TCU).
SID
58
3A
Main transmission engagement/ disengage fault
Test drive the vehicle. Verify that the transmission does not shift correctly. Contact the OnTrac Service Center at 866-668-7221 with the results and request a transmission specialist.
SID
59
3B
Rail select cylinder engagement/
Test drive the veh icle to verify that th e transmission does not shift correctly. Contact the
FreedomLine® Transmission SAE J1587 Fault Codes
Instrument Panel Display PID/ Fault SID Fault Codes Fault Description
Repair Instructions NOTE: The following repair instructions pertain to active faults only. For information and instructions about inactive faults, please contac t the OnTrac Service Center at 86 6-668-7221 and request a transmission specialist.
SID
63
3F
Error on output shaft speed sensor #2
Clear the faults first and switch the OSS #1 and OSS #2 connectors. Test drive the vehicle so that an OSS code is set. If the code stays with the same speed sensor (#1 or NOTE: Output shaft speed sensor #2), then replace the appropriate wiring harness (either the transmission wiring harness #2 is a four wire harness that plugs or the clutch actuator wiring harness which is integrated into the clutch actuator). If the code switches to the other speed sensor (from #1 to #2 or from #2 to #1), replace the into the transmission wiring appropriate speed sensor. If these steps don’t identify the inoperative component, move harness (the same one that is connected to the voltage doubler on to the next set of instructions. and ZMTEC). It is protected with Remove and troubleshoot the clutch actuator wiring har ness. Pin 7 of the TCU connecto r convoluted tubing. Automatic (J1) and pin 3 of the upper output shaft speed sensor connector (J5) (sensor #2) should mode is available, there are no have continuity (resistance of 0.0 to 0.5 ohms) and not be shorted to any other circuit. system restrictions. If a short or open circuit is found, replace the wiring harness. If not, replace the upper speed sensor.
PID
106
6A
Pressure reduction valve fault or pressure sensor signal fault
Contact the OnTrac Service Center at 866-668-7221 and request a transmiss ion specialist.
SID
150
96
PTO fault
Check the wiring harness for short or open circuits. Check that the PTO pressure switch operates correctly.
SID
151
97
Plausibility error between transmission input speed and output speed. The actual speeds registered by the input shaft and output shaft speed sensors do not match the expected ratios.
Check the main TCU for programming errors. Check the FreedomLine® transmission vehicle wiring harness for short or open circuits. If there are no short or open circuits, replace both output shaft speed sensors.
SID
152
98
Main solenoid (Y1) fault
Contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
SID
153
99
Error on ISO 14230 communications line
Remove and troubleshoot the FreedomLine® vehicle wiring harness for short circuits. Pin 2 of the TCU connector and pin F3 of the ZMTEC (sensor #2) should have continuity (resistance of 0.0 to 0.5 ohms) and not be shorted to any other circuit. If a short or open circuit is found, replace the wiring harness. If not, replace the ZMTEC.
SID
154
9A
Error on both output shaft speed sensors
Refer to each of the output shaft speed sensor repair instructions.
PID
161
A1
Input shaft speed sensor fault
Contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
PID
177
B1
Oil temperature sensor fault
Contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
PID
191
BF
Output shaft speed sensor #1 fault First check the SAE J1939 data link. Follow your OEM’s SAE J1939 diagnostic procedures. or both sources of vehicle speed If no data link issues are found, move on to the next set of instructions. are inoperative. Clear the faults first and switch the OSS #1 and OSS #2 connectors. Test drive the NOTE: Output shaft speed sensor vehicle so that an OSS code is set. If the code stays with the same speed sensor (#1 or #1 is a three wire sensor that plugs #2), then replace the appropriate wiring harness (either the transmission wiring harness into the clutch actuator wiring or the clutch actuator wiring harness which is integrated into the clutch actuator). If the harness. It does not have code switches to the other speed sensor (from #1 to #2 or from #2 to #1), replace the convoluted tubing. appropriate speed sensor. If these steps don’t identify the inoperative component, move on to the next set of instructions. Remove and troubleshoot the clutch actuator wiring harness. Pin 11 of the driver side TCU connector (J1) and pin 4 of the lower output shaft speed sensor connector (sensor #1) should all have continuity (resistance of 0.0 to 0.5 ohms) and not be shorted to any other circuit. If a short or open circuit is found, repl ace the wiring harness. If not, re place the lower speed sensor.
SID
230
E6
Permanent idle signal
Troubleshoot the idle switch and the status of the pedal. Refer to the OEM for details.
NOTE: The idle switch is built into the accelerator pedal and is wired into the engine controller, not the transmission controller, or main TCU. The main TCU receives the status of the idle switch over the SAE J1939 bus. The transmission is receiving contradictory messages indicating that the idle switch is open (truck is idling) and the accelerator pedal is pressed (truck is not idling). SID
231
E7
SAE J1939 bus fault
NOTE: The backbone of the SAE J1939 bus is terminated at each end with a 120 ohm resistor. Each component communicating over the bus must connect into the
Verify that the backbone of the SAE J 1979 bus is correctly terminated with no short circuits or open circuits.
NOTE: The resistance across pins C a nd D of the 9 pin diagnostic connector will be about 60 ohms if both terminating resistors are in place (120 ohms if only one is installed). Verify that the ECM and ABS controllers are correctly connected to the SAE J1939 bus and that their SAE J1939 communications are active.
SAE J1587 Fault Codes
Repair Instructions NOTE: The following repair instructions pertain to active faults only. For information and instructions about inactive faults, please contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
PID/ SID
Fault
Instrument Panel Display Fault Codes Fault Description
SID
248
F8
Output SD to display fault. The display will read “EE.”
Troubleshoot the FreedomLine® vehicle wiring harness for short circuits. Pin 9 of the TCU connector and pin F2 of the ZMTEC should all have continuity (resistance of 0.0 to 0.5 ohms) and not be shorted to any other circuit. If a short or open circuit is found, replace the wiring harness, if not replace the ZMTEC.
SID
251
FB
Voltage supply fault
Check that the batteries are supplying 12 VDC to the transmission by measuring the voltage across pins G and E and across pins B and D of the OEM supplied wiring harness that connects to the FreedomLine® vehicle wiring harness. Verify that the voltage doubler is supplying 24 VDC to the transmission by unplugging the main TCU and measuring the voltage across pins 4 and 16 and across pins 5 and 17. Replace the voltage doubler if the truck-supplied power is acceptable, and the voltage doubler power is unacceptable.
SID
253
FD
EOL EEPROM fault
Contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
SID
254
FE
Cut-off relay in ECU does not switch off
Contact the OnTrac Service Center at 866-668-7221 and request a transmission specialist.
Resistance Specifications
Diagnostic Connector
Resistance (Measured Across Pins 1 and 2)
Component
Pin A Battery (–) Pin B Battery (+) Unswitched — with Unconditioned 10 A fuse
Not in Neutral
Neutral Switch
In Neutral
Pin C
CAN_H Tractor Bus
Pin D CAN_L Tractor Bus
0.0-0.5 ohms open circuit
Pin E
CAN_SHLD (for SAE J1939/11)
Pin F
SAE J1708 (+)
Pin G SAE J1708 (–) Pin H Proprietary OEM Use Pin J
Proprietary OEM Use
Connector Pin Assignments K1 1
3 6
2
11 15
12 16
K1
A1
8
4
13
1
Main TCU Connector (Both Harnesses)
Output Shaft Speed Sensor Connector (Both Harnesses)
A3
K3
ZMTEC Connector (New Style)
J
L A
F
A
C
2
3
4
5
ZMTEC Connector (Old Style)
Voltage Doubler Connector
11
10
9
8
E
2
Neutral Switch Connector
7
B
A
B
C
B
A
D
E
F
2
M
U
3
6
C
C
K B
V
4
A3
12
G
1
3
K3
W
7
1
17
H
8
2
14
18 19 20
X
9
12 11 10
9
4 7
10
A1
5
1
D
T
N S
R
P
6
OEM Interface Connector
ZF Friedrichshafen AG
Commercial Vehicle and Special Driveline Technology D-88038 Friedrichshafen www.zf.com
SAE J1939 Connector
Private CAN Connector
PTO Connector
5
4
3
2
1
Shifter or Turtle Wire Harness Connector
2-Pin Connector (J6) J1939 Deutsch DTM Series
Information contained in this publication was in effect at the time the publication was approved for printing and is subject to change without notice or liability. ZF Friedrichshafen AG reserves the right to revise the information presented or discontinue the production of parts described at any time. Copyright 2006 by ZF All Rights Reserved
Printed in the USA
TP-01110 Revised 10-06 16579/22882
