C1043-LEFT REAR TONE WHEEL PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition on.
- Set Condition:
When the Anti-Lock Brake Module detects periodic drops of a Wheel Speed Sensor (WSS) signal.
| Possible Causes |
| DIRTY TONE WHEEL/SENSOR |
| LEFT REAR TONE WHEEL/BEARING DAMAGE |
Diagnostic Test
1.CHECK FOR A DTC C1043-LEFT REAR TONE WHEEL PERFORMANCENOTE: This DTC must be active for the results of this test to be valid.
CAUTION: Ensure brake capability is available before road testing.
NOTE: Vehicle must be driven above 40 km/h (25 mph) for set conditions to be met.
Does the scan tool display: C1043-LEFT REAR TONE WHEEL PERFORMANCE?
Yes
- Go To 2
No
- Refer to the INTERMITTENT CONDITION diagnostic procedure.
- Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TESTING)
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.
Was the tone wheel dirty?
Yes
- Clean tone wheel and sensor. Clear codes and retest.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
- Replace the Left Rear Tone Wheel in accordance with the Service Information.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).