Antilock Brake Module (ABS)

C1200-17-BATTERY VOLTAGE - ABOVE THRESHOLD

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

- When Monitored:
Ignition on.

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





1. CHARGING SYSTEM DTCS PRESENT

NOTE: Disconnect battery charger before continuing.

1. Start the engine.
2. With the scan tool, read DTCs in the PCM.

Are there any Charging System or related voltage DTCs present?

Yes

- Perform the appropriate Charging System DTC diagnostic procedures before continuing with this test. Testing and Inspection.

No

- Go To 2

2. VERIFY THE DTC IS ACTIVE
1. Ignition on, engine not running.
2. With the scan tool, record and erase DTCs.
3. Turn ignition off to the lock position.
4. Start the engine.
5. With the scan tool, read DTCs.

Is the DTC active at this time?

Yes

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

No

- Perform the ABS-INTERMITTENT TEST. ABS Intermittent Condition Test.