950G Series II Wheel Loader, 962G Series II Wheel Loader and IT62G Series II Integrated Toolcarrier Power Train MID 081 - CID 0070 - FMI 03 Caterpillar


MID 081 - CID 0070 - FMI 03
`
950G Series II Wheel Loader, 962G Series II <BR>Wheel Loader and <BR> IT62G Series II Integrated Toolcarrier Power Train [RENR4310]
BRAKING SYSTEM
BRAKE GP
950G Series II Wheel Loader, 962G Series II Wheel Loader and IT62G Series II Integrated Toolcarrier Power Train MID 081 - CID 0070 - FMI 04
950G Series II Wheel Loader, 962G Series II Wheel Loader and IT62G Series II Integrated Toolcarrier Power Train MID 081 - CID 0070 - FMI 03

Conditions Which Generate This Code:




Illustration 1g00824088

Schematic for the parking brake pressure switch

This diagnostic code is associated with the parking brake pressure switch. The switch is connected to two inputs of the ECM. One contact is open and the other contact is grounded during proper operation.

This FMI 03 means that the ECM has determined that the normally open contact and the normally closed contact are open.

Note: The following test procedure may create other diagnostic codes. Ignore these diagnostic codes and clear the diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 0070 FMI 03 is active before performing this procedure.

Test Step 1. CHECK THE GROUND CIRCUIT OF THE SWITCH IN THE HARNESS

  1. Turn the key start switch and the disconnect switch to the OFF position.

  1. Disconnect the machine harness connector(s) from the ECM.

  1. Measure the resistance between contact J1-16 (wire 962-OR) of the machine harness for the ECM and the contact A (wire 962-OR) .

Expected Result:

The resistance is less than 5 ohms.

Results:

  • OK - The resistance is less than 5 ohms. The circuit is correct. Proceed to Test Step 2.

  • NOT OK - The resistance is greater than 5000 ohms. The circuit is open. The machine harness has failed.

    Repair: Repair the machine harness or replace the machine harness.

    STOP

Test Step 2. CHECK THE SWITCH CIRCUITS FOR A SHORT TO THE +BATTERY CIRCUIT

  1. Turn the disconnect switch and the key start switch to the OFF position.

  1. The machine harness remains disconnected from the switch.

  1. Disconnect the machine harness connector(s) from the ECM.

  1. Measure the resistance between contacts J1-27 (wire G764-PK) and J1-36 (wire 419-YL) of the machine harness to all the contacts that are used in 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. Proceed to Test Step 3.

  • NOT OK - One or more of the resistance measurements are less than 5000 ohms. The harness has failed. The short is between J1-27 (wire G764-PK) and the circuit with the lowest resistance or the short is between J1-36 (wire 419-YL) and the circuit with the lowest resistance.

    Repair: Repair the wiring harness or replace the wiring harness.

    STOP

Test Step 3. CHECK THE SWITCH CIRCUITS IN THE HARNESS

  1. The machine harness remains disconnected from the ECM and the switch.

  1. At the harness connector for the switch, connect a jumper wire between contact B (wire 419-YL) and contact C (wire G764-PK).

  1. At the harness connector for the ECM, measure the resistance from contact J1-27 (wire G764-PK) to contact J1-36 (wire 419-YL).

Expected Result:

The resistance is less than 5 ohms.

Results:

  • OK - The resistance is less than 5 ohms. Proceed to Test Step 4.

  • NOT OK - The resistance is greater than 5000 ohms. The circuit is open.

    Repair: The machine harness has failed. Repair the machine harness or replace the machine harness.

    STOP

Test Step 4. CHECK THE OPERATION OF THE SWITCH

  1. The machine harness remains disconnected from the switch.

  1. Connect one lead from a multimeter to contact A of the harness connector for the switch.

  1. Connect the other lead from a multimeter to contact B of the harness connector for the switch.

  1. Measure the resistance between contact A and contact B. Note the resistance.

  1. Disconnect the lead from contact B and connect the lead to contact C.

  1. Measure the resistance between contact A and contact C.

Expected Result:

The resistance from contact A to contact C is less than 5 ohms, and the resistance from contact A to contact B is greater than 5000 ohms.

Results:

  • OK - The resistance from contact A to contact C is less than 5 ohms, and the resistance from contact A to contact B is greater than 5000 ohms. Proceed to Test Step 5.

  • NOT OK - The resistance measurements do not differ. The switch has failed.

    Repair: Replace the switch.

    STOP

Test Step 5. CHECK THE OPERATION OF THE SWITCH

  1. The machine harness remains disconnected from the switch.

  1. Press and hold the switch.

  1. Connect one lead from a multimeter to contact A (wire 962-OR) of the harness connector for the switch.

  1. Connect the other lead from a multimeter to contact B (wire 419-YL) of the harness connector for the switch.

  1. Measure the resistance between contact A and contact B. Note the resistance.

  1. Disconnect the lead from contact B and connect the lead to contact C.

  1. Measure the resistance between contact A and contact C.

Expected Result:

The resistance from contact A to contact B is less than 5 ohms, and the resistance from contact A to contact C is greater than 5000 ohms.

Results:

  • OK - The resistance from contact A to contact B is less than 5 ohms, and the resistance from contact A and contact C is greater than 5000 ohms. These measurements are opposite of the measurements from the previous Test Step. The switch is operating correctly. Proceed to Test Step 6.

  • NOT OK - The resistance measurements do not differ for both contacts, or the measurements have not changed from the previous Test Step. The switch has failed.

    Repair: Replace the switch.

    STOP

Test Step 6. CHECK IF THE DIAGNOSTIC CODE REMAINS

  1. Inspect the contacts of the harness connectors and clean the connectors.

  1. Reconnect all harness connectors.

  1. Turn the disconnect switch and the key start switch to the ON position.

  1. Operate the machine.

  1. Determine if CID 0070 FMI 03 is present.

Expected Result:

The CID 0070 FMI 03 is active.

Results:

  • YES - The CID 0070 FMI 03 is active. The diagnostic code has not been corrected. The ECM may have failed.

    Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this procedure again. If the cause of the diagnostic code is not found, replace the ECM. See Testing And Adjusting, "Electronic Control Module (ECM) - Replace".

    STOP

  • NO - The CID 0070 FMI 03 is not active. The diagnostic code is NOT present. The diagnostic code does not exist at this time.

    Repair: The initial diagnostic code was probably caused by a poor electrical connection or a short at one of the harness connectors that was disconnected and reconnected. Resume normal machine operation.

    STOP

Information System:

953D, 963D and 973D Track-Type Loaders Steering Does Not Function in One Direction
953D, 963D and 973D Track-Type Loaders Steering Does Not Function
D7E Track-Type Tractor Hydraulic, HVAC, and Electrical Systems Hydraulic System Oil Temperature Is High
D7E Track-Type Tractor Hydraulic, HVAC, and Electrical Systems Hydraulic System Oil Level Is Low
D7E Track-Type Tractor Hydraulic, HVAC, and Electrical Systems Hydraulic System Oil Contains Air
Piston Seizures on C18 Engines{1225, 1331}
C9.3 Engine and D7E Track-Type Tractors Power Train Oil Cooler - Remove and Install
953D Track-Type Loader Machine Systems Window Wiper and Wiper Motor
C3.4B Engines for Caterpillar Built Machines Alternator - Test
950G Series II Wheel Loader, 962G Series II Wheel Loader and IT62G Series II Integrated Toolcarrier Power Train MID 081 - CID 0070 - FMI 04
AD55B Underground Articulated Truck Additional Messages
AD55B Underground Articulated Truck Safety Messages
973D Track-Type Loader Machine Systems Window Wiper and Wiper Motor
D6T XE Electrical & Hydraulic Troubleshooting Hydraulic Fan Does Not Function
988H Wheel Loader Declaration of Conformity
D6T XE Electrical & Hydraulic Troubleshooting Hydraulic Fan Does Not Shut Off
980H Wheel Loader Declaration of Conformity
C9.3 Engine and D7E Track-Type Tractors Valve Mechanism Cover - Remove and Install
IT62H Integrated Toolcarrier and 950H and 962H Wheel Loaders Declaration of Conformity
973D Track-Type Loader Power Train Brake and Final Drive Group
Installation of the S, U, and SU Bulldozer on the D7E Track-Type Tractor{6050, 6051, 6053, 6078}
C13, C15, and C18 Tier 4 Interim Engines ARD Is Disabled
2009/07/27 A Orifice Plug on the Hystat Motor for the 906H Wheel Loader, 907H Wheel Loader, and 908H Wheel Loader May Need to be Torqued or Replaced {3016, 5057}
924H, 924HZ, 928HZ and 930H Wheel Loaders Hydraulic System Piston Pump (Steering, Pilot)