TH220B, TH330B, TH340B, TH350B, TH355B, TH360B, TH460B, TH560B and TH580B Telehandlers Caterpillar

This diagnostic code is recorded when the shift lever identifies a system voltage that is above 16.0 DCV.

The possible causes of this diagnostic code are listed:

• The voltage regulator is not operating properly.

• Jump starting with a welder.

System Response:

The machine response is listed:

• Starting is disabled.

• The functions of the transmission are disabled until the voltage is above 16.0 DCV and the direction switch is placed in neutral.

Note: Ensure that CID 0168 FMI 00 is active and that the diagnostic code indicator is active.

Test Step 1. CHECK THE CHARGING SYSTEM.

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

2. Ensure that CID 0168 FMI 00 is active. See Troubleshooting, "Using the Operator Monitor to Determine Diagnostic Codes".

3. Ensure that the diagnostic code is active.

Expected Result:

The diagnostic code is active.

Results:

• YES - The diagnostic code is active. Proceed to test step 3.

• NO - The diagnostic code is not active. Proceed to test step 2.

Test Step 2. CHECK THE CHARGING SYSTEM.

1. Start the engine.

2. Ensure that CID 0168 FMI 0 is active.

3. Observe the status of the diagnostic code indicator.

Expected Result:

The diagnostic code indicator is active.

Results:

• YES - The diagnostic code indicator is active. The charging system is charging at an excessive voltage.

  Repair: Check the charging system. See Testing and Adjusting, "Starting and Charging System".

  Stop.

• NO - The diagnostic code indicator is not active.

  Repair: There is no problem at this time. Watch for a recurrence of this diagnostic code.

  Stop.

Test Step 3. CHECK THE BATTERY VOLTAGE.

1. The engine is stopped.

2. At the battery, measure the voltage.

Expected Result:

The voltage is less than 16.0 DCV.

Results:

• OK - The voltage is less than 16.0 DCV. The ECM must be incorrectly recording this problem.

  Repair: It is unlikely that the ECM has failed. Perform the previous Steps again. If the cause of the problem is not found, replace the ECM. See Testing and Adjusting, "Electronic Control Module (ECM) - Replace".

  Stop.

• NOT OK - The voltage is greater than 16.0 DCV. The charging system is charging at an excessive voltage.

  Repair: Check the charging system. See Special Instruction, REHS0354, "Charging System Troubleshooting" .

  Stop.