1270525 BAR-BUS Caterpillar parts
3508, 3508B, 3512, 3512B, 3516, 3516B, G3516, PM3508, PM3512, PM3516
Rating:
Alternative (cross code) number:
CA1270525
127-0525
1270525
CA1270525
127-0525
1270525
GEN SET ENGINE, POWER MODULE,
Compatible equipment models: 1270525:
Information:
Illustration 1 g00935979
Schematic of the Brake Charging solenoid This diagnostic code is associated with the Brake Charging solenoid. An FMI 04 means the machine ECM has determined the voltage of the Brake Charging solenoid circuit is above normal. Possible causes for this diagnostic code are:
The energize circuit of the solenoid is shorted to ground.
The solenoid has failed.
The ECM may have failed, but is unlikely. Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 1231 FMI 04 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.System Response:The diagnostic code of CID 1231 FMI 04 will be logged in the internal memory of the ECM.When this diagnostic code occurs, the solenoid return for the cooling fan and brake charging is disabled. Both systems go to 'fail safe' mode.Test Step 1. CHECK THE SOLENOID.
Turn the disconnect switch and the key start switch to the ON position. Do not start the engine.
Observe the status of the diagnostic code.
Disconnect the solenoid with the active diagnostic code from the machine harness. Expected Result:CID 1231 FMI 04 changes to CID 1231 FMI 05 when the solenoid is disconnected.Results:
YES - CID 1231 FMI 04 changes to CID 1231 FMI 05 when the solenoid is disconnected. The circuit is correct.Repair: The solenoid has failed. Repeat this test "CHECK THE SOLENOID" in order to verify the solenoid failure. Replace the solenoid.STOP
NO - CID 1231 FMI 04 remains active. Proceed to Test Step 2.Test Step 2. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID FOR A SHORT TO GROUND.
Turn the key start switch and the disconnect switch to the OFF position.
The solenoid remains disconnected from the machine harness.
Disconnect the J1 and J2 harness connectors from the ECM.
At the J1 harness connector, measure the resistance from the signal contact J1-68 (wire C881-BU) to all contacts that are used in both the machine harness connectors for the ECM. Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.
NOT OK - Each resistance measurement is not greater than 5000 ohms. There is a short in the machine harness. The short is between J1-68 (wire C881-BU) and the circuit with the low resistance measurement.Repair: Repair the machine harness or replace the machine harness. STOPTest Step 3. CHECK IF THE DIAGNOSTIC CODE REMAINS.
Inspect the harness connectors and clean the contacts of the harness connectors.
Reconnect all harness connectors.
Turn the disconnect switch and the key start switch to the ON position.
Operate the machine.
Check the status of the CID 1231 FMI 04. Expected Result:The CID 1231 FMI 04 is active. Results:
YES - The CID 1231 FMI 04 is active. The diagnostic code has not been corrected. The ECM may have failed.Repair: Is unlikely that the ECM has failed. Exit this procedure and perform this procedure again.
Cat SIS web machinery list:
Parts bar Caterpillar catalog:
5F4764
BAR-PRY
120B, 120G, 120H, 120M, 12G, 12H, 12M, 130G, 135H, 140G, 140H, 140K, 140M, 143H, 14G, 14H, 14H NA, 160G, 160H, 160K, 160M, 163H, 16G, 16H, 16H NA, 16M, 235, 245, 307C, 311C, 3126, 3304, 3304B, 3306, 3...
120B, 120G, 120H, 120M, 12G, 12H, 12M, 130G, 135H, 140G, 140H, 140K, 140M, 143H, 14G, 14H, 14H NA, 160G, 160H, 160K, 160M, 163H, 16G, 16H, 16H NA, 16M, 235, 245, 307C, 311C, 3126, 3304, 3304B, 3306, 3...
3084217
BAR-BUS
3516C, PM3516
3516C, PM3516
3103453
BAR-GROUND
3516C, C32, EPIC, PM3516
3516C, C32, EPIC, PM3516
2449665
BAR-BUS
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C175-16, C27, C32
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C175-16, C27, C32
2449663
BAR-BUS
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C27, C32
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C27, C32
2449664
BAR-BUS
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C27, C32
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C27, C32
3587640
BAR-BUS
3512, 3512B, 3512C, 3516, 3516B, 3516C, C175-16, C32
3512, 3512B, 3512C, 3516, 3516B, 3516C, C175-16, C32
3587641
BAR-BUS
3512, 3512B, 3512C, 3516, 3516B, 3516C, C175-16, C32
3512, 3512B, 3512C, 3516, 3516B, 3516C, C175-16, C32
2747193
BAR-BUS
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C175-16, C27, C32
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C175-16, C27, C32
2765981
BAR-BUS
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C27, C32
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C27, C32
2765983
BAR-BUS
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C27, C32
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C27, C32
2790829
BAR-BUS
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C175-16, C175-20, C32, G3516H
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 3516C, C175-16, C175-20, C32, G3516H
7W3221
BAR
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 5130, 5130B, 5230, 5230B, G3516C, G3516E, G3520C, G3520E, TH48-E80
3508, 3508B, 3512, 3512B, 3512C, 3516, 3516B, 5130, 5130B, 5230, 5230B, G3516C, G3516E, G3520C, G3520E, TH48-E80
1067703
BAR
3412, 3508, G3508, G3512, G3516, SR4
3412, 3508, G3508, G3512, G3516, SR4
1067704
BAR
3508, G3508, G3512, G3516, SR4
3508, G3508, G3512, G3516, SR4
1067702
BAR AS
3508, 3508B, 3512, C27, G3508, G3512, G3516, SR4, SR4B
3508, 3508B, 3512, C27, G3508, G3512, G3516, SR4, SR4B
1067701
BAR AS
3412, 3508, 3508B, 3512, 3512B, 3516, 3516B, C27, G3508, G3512, G3516, G3516B, G3516C, PM3516, PMG3516, SR4, SR4B
3412, 3508, 3508B, 3512, 3512B, 3516, 3516B, C27, G3508, G3512, G3516, G3516B, G3516C, PM3516, PMG3516, SR4, SR4B
7W9253
BAR-BUS
3408
3408
1338097
BAR-BUS
3508, 3508B, 3512, 3512B, 3516, 3516B, PM3508, PM3512, PM3516
3508, 3508B, 3512, 3512B, 3516, 3516B, PM3508, PM3512, PM3516
1341516
BAR-BUS
3508, 3508B, 3512, 3512B, 3516, 3516B, PM3508, PM3512, PM3516
3508, 3508B, 3512, 3512B, 3516, 3516B, PM3508, PM3512, PM3516
1338102
BAR-BUS
3508, 3508B, 3512, 3512B, 3516, 3516B, PM3508, PM3512, PM3516
3508, 3508B, 3512, 3512B, 3516, 3516B, PM3508, PM3512, PM3516
1338101
BAR-BUS
3508, 3508B, 3512, 3512B, 3516, 3516B, PM3508, PM3512, PM3516
3508, 3508B, 3512, 3512B, 3516, 3516B, PM3508, PM3512, PM3516
1440451
BAR-BUS
3508, 3508B, 3512, 3512B, 3516, 3516B, G3516, PM3508, PM3512, PM3516
3508, 3508B, 3512, 3512B, 3516, 3516B, G3516, PM3508, PM3512, PM3516
1270528
BAR-BUS
3508, 3508B, 3512, 3512B, 3516, 3516B, G3516, PM3508, PM3512, PM3516
3508, 3508B, 3512, 3512B, 3516, 3516B, G3516, PM3508, PM3512, PM3516