C2100

C2100-BATTERY VOLTAGE LOW

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

- When Monitored:
With the ignition on.

- Set Condition:
If the Anti-Lock Brake Module detects system voltage is below 7.5 volts.





1. DTCS IN THE PCM

NOTE: This DTC must be active for the results of this test to be valid.

1. Turn the ignition on.
2. With the scan tool, read and record DTCs from the PCM.
3. With the scan tool, read and record Freeze Frame information.
4. With the scan tool, erase DTCs.
5. Start the engine.
6. With the scan tool, read and record DTCs.
7. With the scan tool read DTCs from the PCM.

Are any charging system codes present?

Yes

- Repair the charging system DTC in the PCM. Testing and Inspection.
- Perform PCM VERIFICATION TEST. PCM Verification Test.

No

- Go To 2

2. CHARGING SYSTEM FAILURE
1. Start the engine.
2. Connect a voltmeter to the vehicle battery.

Is the vehicle battery voltage below 8.2 volts?

No

- Go To 3

Yes

- Repair the charging system.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.

3. CHARGING POWER SUPPLY VOLTAGE
1. With a scan tool read Power Supply Voltage.

Is Power Supply Voltage below 8.2 volts?

No

- Perform the ABS-INTERMITTENT CONDITION TEST. Testing and Inspection.

Yes

- Replace the Anti-Lock Brakes Module.
- Perform the ABS VERIFICATION TEST. ABS Verification Test.