Antilock Brake Module (ABS)

C2101-BATTERY VOLTAGE HIGH

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

- When Monitored:
Ignition on and no system undervoltage DTC active.

- Set Condition:
If the sensed ignition voltage is greater than 16.5 volts for 100 msec.





1. DTC IS ACTIVE

NOTE: Diagnose and repair any powertrain Charging system DTCs before continuing with this procedure.

NOTE: Make sure the battery is fully charged.

1. Ignition on, engine not running.
2. With the scan tool, read and record DTCs in the ABS Module.
3. With the scan tool, erase DTCs.
4. Turn the ignition off to the lock position.
5. Start the engine.
6. With the scan tool, read DTCs.

Is the status Active for this DTC?

Yes

- Replace the Anti-lock Brake System (ABS) Module.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

No

- Go To 2

2. INTERMITTENT DTC
1. Turn the ignition off to the lock position.
2. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
3. Check connectors - clean/repair as necessary.
4. Inspect the vehicle for aftermarket accessories that may exceed the Charging System output.
5. Perform any Technical Service Bulletins that may apply.

Were any problems found?

Yes

- Repair as necessary.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

No

- Test Complete.