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1997 953c with four trouble trouble codes 030 600F08, 030 819F02,
Customer Question
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1997 953c with four trouble codes: 030 600F08, 030 819F02, 030 821F04, 079 168F04. Current symptoms include: miss that worsens with extended idle time, lacks power under load/very sluggish drive system Submitted: 393 days a nd 17 hours ago. C at at eg eg or or y : He a vy vy E q ui ui pm pm en en t Va lu lu e: e: $2 $2 8
S ta ta tu tu s: s: CL CL OS OS ED ED
Optional Optio nal Information Optional Information: Make: Caterpillar Model: 953c Year: 1997 Already Tried: Haven'tt got ten t oo far yet. not iced fuel around the base of the inverted fuel filter is about all. Tightened filter Haven' filter,, no change.
Accepted Answer
Donnie :
MID 079 - CID 0168 - FMI 04 Conditions Which Generate This Code: This Thi s diagnostic code code is recorded recorded w hen the ECM reads the system voltage voltage as be ing below 23.0 DCV. DCV. The poss ibl ible e cause s of this diagnostic code are li listed: sted: A charging syste m compone compone nt is faulty. faulty. The machine harness is faulty. The E CM ha s failed. This is un li likely kely..
System Response: Wh en this diagn ostic code occurs, a wa rning (Catego ry 3) is show n on the monitor monitor.. The The tran smission will shift into NEUTRAL NEUTRAL if syste m voltage drops below approximately 18 DCV. Normal Normal ope ration will resume afte r the problem has been corrected a nd after the spe ed/direction control lever has bee n returned to P AR ARK. K. The The no rm rmal al operation resumes w hen the voltage recovers above 23 DCV.
Test Step 1. CHECK THE BATTERY BATTERY VO LTAGE. 1. Start Start the e ngine and run the engine at high idle idle for several minutes. minutes. 1. Measure Measure the volt voltage age o f the battery at the battery posts. Expected Result: The battery voltage s hould be greater than 23.0 DCV.
Results: Proceed to tes t step 2. OK - The battery voltage is grea ter than 23.0 DCV. The battery voltage is correct. Proceed NOT OK - The bat tery voltage is NOT grea ter than 2 3.0 DCV. cial al Instruction, REHS0354, REHS0354, "Cha rging System Troublesh Troublesh ooting" for more information. Repair: Che ck the charging system. See Spe ci Stop. Test Step 2. CHECK THE SYS TEM VOLTAGE AT THE ECM. 1. The engine re mains running at high idle. 1. DO NOT DISCONNECT the machine harness from the ECM. 1. Use the 7X-1710 Multimeter Probe to measure the positive voltage (DCV) between contacts D-1 (wire 164-WH) and contact D-2 (wire 202-BK). Expected Result: The voltage mea suremen t is greater than 2 3.0 DCV.
Results: OK - The voltage is grea ter than 23 .0 DCV. The The ba ttery voltage is correct. Procee d to tes t step 3. NOT OK - The voltage is NOT correct. The machine harness has failed. Repair: Repair the machine machine harness or replace the machine machine ha rness. Stop. Test Step 3. CHECK IF THE DIAGNOSTIC C ODE REMAINS. 1. Turn Turn the key s tart switch and the disc disconnect onnect sw itc itch h to the OFF position. position. 1. Disconnect Disconnect connector B and connector D from the ECM. Inspect the contacts of the harness connectors and clean the contacts. 1. Reconnect all harness connectors. 1. Turn Turn the key s tart switch and the disc disconnect onnect sw itc itch h to the ON position. 1. Enter the s ervice mode of the C ate rpil rpillar lar Monitoring Monitoring System and clear all inactive inactive diagnos tic codes . 1. Operate the mac machine. hine. 1. View View the sta tus of CID 0168 FMI 04. Expected Result: The diagnostic code is NO longer active.
Results: YES - The diagnostic code is NO longer active. The diagnostic code does not exist at this time. The initial diagnostic code was probably caused by a poor electrical electrical connection connection or a short at one of the harness connectors that was disc disconnected onnected and reconnected. Stop. code has NOT bee n corrected. corrected. NO - The diagnostic code Repair: Resume normal machine operation. It is unlikely that the ECM is faulty. Exit this procedure and perform this procedure again. If the cause of the diagnos tic code is not fou nd, replace the E CM. See See Testing a nd Adjusting, "Electronic Con trol Module (ECM) - Replace".
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MID 030 - CID 0600 - FMI 08 Conditions Which Generate This Code: Service Servi ce Notes: Ensure that the desired diagnostic code code is on ho ld. Ensure that the diagnostic code code indi indicator cator shows "SERV CODE". CODE". Verif Verify y the connector contact and th e w ire numbers by using the Electri Electrical cal System System Schematic for for the machine tha t is being se rvi rviced. ced.
Note: See Diagnostic Function, "Temperature Sender" in order to troubleshoot this component. Test Step 1. Perform the following diagnostic procedure: Temperature Sende r Results: OK - STOP REPAIRED, REPAIR ED, OK - STO P Donnie :
MID 030 - CID 0819 - FMI 02 This Thi s diagnostic code is recorded w hen the main display module module doe s not recei receive ve e xpected informati information. on. Whe n the mai main n display module module sends inf inform ormation ation to a display compone nt, the display componen t sen ds a signa l back to the main display module. module. The signa l confirm confirms s correct information. information. Whe n the main display module does not receive expected information, the diagnostic code is logged. As a result of this diagnostic code, the main display module may not respo nd to the information information that is received. Gauges an d readou ts could be inc incorrect orrect when the main display module module is in normal mode. mode. Che ck the connections for the display data link. Check for opens or shorts in the harness wiring for the display data link.
Test Step 1. INSPECT INSPECT THE HARNESS CO NNECTIONS. 1. Turn the disconnect switch to the OFF position. 1. Inspect the harness connecti connections ons tha t are related to the display data link. link. Make Make su re that the connectors are clean clean and tight. 1. Check the mating of the harness connectors. 1. Check wires at the con nector. 1. Check each w ire for nicks nicks or signs of abrasion in the insulation. 1. Check for moisture moisture a t the conn ector ector.. 1. Check for dirty contacts or corroded contacts. 1. Check each pin and e ach socket. Expected Result: The machine machine h arness connectors are tight and fr free ee of corrosion. corrosion.
Results: OK - The machine machine ha rness connectors are tight and free of corrosion. corrosion. Proceed to test s tep 2. machine harness connectors are NOT tight and fr free ee of corrosion. corrosion. NOT OK - The machine Repair: Repair the machine machine harness or replace the machine machine ha rness. STOP Test Step 2. CHECK FOR A SHORT TO +BATTE +BATTERY RY 1. Turn Turn the key s tart switch and the disc disconnect onnect sw itc itch h to the OFF position. position. 1. Disconnect the harness from the main display module. 1. Disconnect the machine harness connectors from all of the display components. 1. At the harness connectors for the main main display display module, module, measure the resistance betw een the contacts that are listed below: Conn ector conta ct 1(+Batery 1(+Batery ) and th e Display Data Link circuit circuit contact 4 (wire C4 13-Y 13-YL). L). Conn ector conta ct 1(+ Battery) and th e Display Data Link circuit circuit contact 5 (wire C4 14-BU). Conn ector conta ct 1 (+ Battery) and th e Display Data Link circuit circuit contact 3 (wire E7 08-PK). Expected Result: The resistance is greater than 5000 ohms.
Results: OK - The resistance is greater than 5000 ohms. Proceed to tes t step 3. machine ha rness has fai failed. led. NOT OK - The resistance is less than 5 ohms. The machine circuits ts of the displ display ay data li link nk in the machine machine ha rness. Replace Replace the mac machine hine harness or repair Repair: There is a sho rt betwe en the +battery and the circui the machine machine harnes s.
STOP Test Step 3. CHECK FOR AN OPEN HARNESS. 1. The disconnect switch and the key start sw itc itch h remain in the OFF positi position. on. 1. All All the display modules remain disconnecte d from the machine machine ha rness . 1. Measure the resistance of the ci circui rcuits ts of the displ display ay data li link nk that a re listed below: Measure the resistance betwe en connector contact 35 (wire C413-YL) C413-YL) to connector contact contact 4 (wire C413-YL) C413-YL) of the message center module. Measure the resistance betwe en connector contact 15 (wire C414-BU) C414-BU) to connector contact 5 (wire (wire C4 14-B 14-BU) U) of the message center module. module. Measure the resistance betwe en connector contact 25 (wire E708-PK) to connector contact 3 (wire (wire E708-PK) of the message center module. module. Expected Result: The resistance is less less tha n 5 ohms.
Results: OK - The resistance is less than 5 ohms. The circuit resistance is correct. Proceed to test step 4. - The resistance is greater than 5000 ohms. machine ha rness or Replace the mac machine hine harness. Repair: There is an ope n in the machine harness. Repair the machine STOP Test Step 4. CHECK FOR A SHORT TO GROUND 1. The disconnect switch and the key start sw itc itch h remain in the OFF positi position. on. 1. The main display module and all the display components remain disconnected from the machine harness. 1. At the machine machine ha rness connector for the main display display module, measure measure the resistance be twe en frame ground and the connector contacts 35 (wire C413-YL), 15 (wire C4 14-BU) and 25(w ire E708-PK) of the d isplay data link. Expected Result: The resistance is greater than 5000 ohms.
Results: circuit is is correct. Proceed to test ste p 5. OK - The resistance is greater than 5000 ohms. The resistance of the circuit NOT OK - The resistance is less than 5000 ohms. The resistance of the circuit is not correct. circuits ts of the displ display ay data link in in the mac machine hine harness. Replace the machine machine ha rness o r repair Repair: There is a sho rt betwe en frame ground and the circui the machine machine harnes s.
STOP Test Step 5. CHECK FOR + 12 DC V 1. Reconnect all modules modules to the machine harness. 1. Turn Turn the disconnect switch and the key start sw itc itch h to the ON position. 1. Use the 7X-1710 Cable probes to check the voltage at the contact 1 (wire E707-GN) to contact 2 (wire 201-BK) 201-BK) of the message center module. module. Expected Result: The volta volta e is 9.0 ± 0.5 DCV.
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Results: OK - The vo ltage is 9.0 ± 0.5 DCV. DCV. Replace e the message cente r module. module. Repair: Replac STOP NOT OK - The voltag e is NO T 9.0 ± 0.5 DCV. The voltage is not correct. module h as failed. It is is unlikely that the main display display module ha s failed. Exit Exit this procedure a nd pe rform this procedure again. Repair: The main display module If the problem is not found, replace the main display display module. See Testing and Adjus ting, "Module - Replace". Replace".
STOP Donnie :
MID 030 - CID 0821 - FMI 04 This Thi s diagnostic code is recorded w hen the main display module module reads the voltage of the displ display ay pow er supply circ circuit uit and the voltage is below normal normal.. Normal display display pow er supp ly voltage voltage is 9.0 ± 0.5 DCV. The schematic that is show n abo ve repre sen ts a typical insta insta ll llation ation of the componen t. Verify Verify the conne ctor contact and w ire numbers by using the Electric Electrical al System Schematic Schematic for the machine that is being se rvi rviced. ced.
Test Step 1. CHECK THE VOLTAGE AT THE MAIN MAIN DISPLAY MODULE. 1. DO NOT disconnect disconnect the harness from the the modul module. e. 1. Use the 7X-1710 Multimeter Probe Group. Check the voltage at the connector for the main display module. Measure the voltage from contact 34 to contact 2 (ground). Expected Result: The voltage measu res 9.0 ± 0.5 DCV. DCV.
Results: 0.5 DCV. DCV. The display pow er sup ply voltage is correct. Check the main display module for the same d iagnos tic code code . If the OK - The voltage is 9.0 ± 0.5 service code indicator is still ON, the main display module ha s failed. unlikely that the main display module has fa il iled. ed. Exit this procedu re and perform this procedure aga in. Also, Also, recheck if the d iagnos tic code code Repair: It is unlikely indicator indic ator is illumi illuminate nate d for this diagnost ic code. If the cause of the diag nostic code is not foun d, replace the main display module. See Test Test ing and Adjusting, "Module - Replace".
STOP DCV. The The display po we r supply voltage is NOT correct. Procee d to tes t ste p 2. NOT OK - The voltage is NOT 9.0 ± 0.5 DCV. Test Step 2. DISCO DISCO NNECT THE MODULES. 1. Use the 7X-1710 Multimeter Probe Group. Check the voltage at the connector for the main display module. Measure the voltage from contact 34 to contact 2 (ground). 1. Disconnect a display module from the machine harness one at a time. 1. Continue to measure the voltage a t the conne ctor for for the main display display module. Measure Measure the voltage from contact contact 34 to contact 2. Expected Result: The voltage that is mea sured is 9.0 ± 0.5 0.5 DCV. DCV.
Results: DCV. The The po we r supply to the modu le is correct. correct. The module that w as just d isconnecte d has failed. OK - The voltage is 9.0 ± 0.5 DCV. Repair: Replac Replace e the modul module e that w as disconnected. STOP NOT OK - The voltage is NOT 9.0 ± 0.5 DCV. DCV. The The display po we r supply voltage is not correct. Repea t this test s tep a gain. All All the modules ha ve be en disconnected disc onnected from the mac machine hine harness and the volt voltage age is NOT 9.0 ± 0.5 0.5 DCV. DCV. Proceed to test s tep 3 . Test Step 3. CHECK FOR A SHORT TO GROUND. 1. Turn Turn the disconnect switch and the key start sw itc itch h to the OFF position. position. 1. Disconne Disconne ct the machine harne ss from the main display module. module. 1. At the machine machine ha rness connector for the main display display module, measure measure the resistance. Measure the resistance betw een harness conne ctor contact contact 34 and ha rness connector contact 2. Expected Result: The resistance that is measured is greater than 5000 oh ms.
Results: OK - The resistance that is measured is greater than 5000 oh ms.STOP less tha n 5000 ohms. The harness ha s failed. failed. NOT OK - The resistance is less Repair: Repair the harness or replace replace the harness . STOP Donnie : None of these codes are related to the engine. Donnie : I think you should focus on the fuel system. Donnie : The 0790 168F04 is low voltage but, it think think this machine machine has the latc latching hing fuel shutoff and w ould not be effected by the low voltage. Donnie : The best things to check on the fuel system is the pressure going to the ba ck of the cylinder cylinder head (supply). (supply). Then check the suction suction and return lines lines for air in in the fuel.
Donnie : Install a piece of clear line line w ere the sucti suction on line goes to the engine and run engine to see the flow. Only a small amount of air should be se en. Move line line to betw een the w ater se parator and the transfer pump second and recheck. Lastly Lastly move it to the return line and check for air com coming ing from from the e ngine. If no air is going into the engine b ut it is comi coming ng from the engine (more will be s een under load), you you ha ve a loose inj injector ector and you s hould have the m all removed, cleaned cleaned and reseated with the press tool for a proper fit. fit.
Customer : Lost at the mom moment: ent: we have bee n running the machine machine only on wee kends, last wee k ran fine, fine, now after a cold weathe r start, develops this miss miss and huge loss of pow er er.. could could this have anything to do with using the e ther aid?
Donnie : No, not unless it over loaded the engine w ith ether and cause d to lock and bend a connecting rod. This This is not like like using the fact factory ory system. Donnie : The factory system lim limits its the a mount and o nly allows allows o ne s hot pe r starting attempt. Customer :
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That's what i used s o relieved relieved to know that is probably not the case.
Donnie : It is the safest way. The most common problem with this engine is air in the fuel and/or low fuel pressure. Customer : Does this engine use a mechanical lift pump to feed the injection pump? Donnie : The trans fer pump is built built into the go vernor drive hous ing. This This engine d oes not ha ve an injection pump. It has mechanical unit injectors injectors (MUI) simi similar lar to the Detroit Diesel.
Customer : I will try your first first few tips and se e w here it take s me. Thanks for respon ding so qu ick ickly ly,, Donnie. Donnie : OK, let let me know wha t you find. By By the w ay, fuel pressure nee ds to be a bove 35 psi, 50 is is be st. The tranfer pump pump can only make 80 psi in perfect conditons. You can pinch off the re turn line line to s ee how high it can can ge t but, only do this for a short pe riod of time. time.
Expert:
Donnie
Pos. Feedba ck: 99.8 % Accepts:
945
Answered:
11/22/2010
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