Final Drive Control Module (FDCM)

C2101-BATTERY VOLTAGE HIGH

For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.

- When Monitored:
Continuously.

- Set Condition:
The Final Drive Control Module (FDCM) detects system voltage is above 16 volts.





WARNING: On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury

1. CHARGING SYSTEM DTCS PRESENT
1. Ignition on, engine off.
2. With the scan tool, read DTCs.

Are there any Charging System or related voltage DTCs present?

Yes

- Perform the appropriate Charging System diagnostic procedures before continuing with this test.

No

- Go To 2

2. DTC IS ACTIVE
1. With the scan tool, read DTCs in the FDCM.

Is the status Active for this DTC?

Yes

- Replace the Final Drive Control Module (FDCM).
- Perform the TRANSFER CASE VERIFICATION TEST .

No

- Go To 3

3. INTERMITTENT WIRING AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
3. Wiggle test the wiring and connectors while monitoring the scan tool data relative to this circuit.
4. Look for the data to change or for the DTC to reset during the wiggle test.

Were any problems found?

Yes

- Repair as necessary.
- Perform the TRANSFER CASE VERIFICATION TEST .

No

- Test complete.