C1041-LEFT FRONT 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 FRONT TONE WHEEL/BEARING DAMAGE |
Diagnostic Test
1. CHECK FOR A DTC C1041-LEFT FRONT TONE WHEEL PERFORMANCENOTE: 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.
WARNING: To avoid personal injury or death, check 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 met.
With the scan tool, read DTCs.
Does the scan tool display: C1041-LEFT FRONT TONE WHEEL PERFORMANCE active?
Yes
- Replace the Left Front Tone Wheel in accordance with the Service Information.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
- Refer to the INTERMITTENT CONDITION diagnostic procedure.
- Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TESTING)