C1043

C1043-LEFT REAR TONE WHEEL PERFORMANCE

For a complete wiring diagram Refer to Diagrams/Electrical. Diagrams By Number


- When Monitored:

With the ignition on.

- Set Condition:

When the Anti-Lock Brake Module detects periodic drops of a WSS signal.







Diagnostic Test


1. CHECK FOR A DTC C1043-LEFT REAR TONE WHEEL PERFORMANCE

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

Turn the ignition on.

With the scan tool, read DTCs.

Record DTC and Freeze Frame information.

With the scan tool, erase DTCs.

Cycle the ignition switch off then on.


CAUTION: Ensure brake capability is available before road testing.

Test drive the vehicle in a straight line to 40 km/h (25 mph).


NOTE: Vehicle must be driven above 40 km/h (25 mph) for set conditions to be meet.

With the scan tool, read DTCs.

Does the scan tool display: C1043-LEFT REAR TONE WHEEL PERFORMANCE?

Yes

- Go To 2

No

- Perform the ABS Intermittent Condition diagnostic procedure. Testing and Inspection


2. CHECK THE LEFT REAR TONE WHEEL FOR DAMAGE


NOTE: Check the tone wheel teeth for missing teeth, cracks, or looseness. Teeth should be perfectly square, not bent, or nicked.

Check the Left Rear Tone Wheel for damage.

Check the Left Rear Tone Wheel for dirt.

Was the tone wheel dirty?

Yes

- Clean tone wheel and sensor. Clear codes and retest.
- Perform ABS VERIFICATION TEST. ABS Verification Test

No

- Replace the Left Rear Tone Wheel.
- Perform ABS VERIFICATION TEST. ABS Verification Test