Jeep Grand Cherokee WK. Manual - part 146
C1042-RIGHT FRONT TONE WHEEL PERFORMANCE (CONTINUED)
For the Anti-Lock Brake System circuit diagram. (Refer to 5 - BRAKES - SCHEMATICS AND DIAGRAMS)
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 WSS signal.
Possible Causes
RIGHT FRONT TONE WHEEL
Diagnostic Test
1.
CHECK FOR A DTC C1042-RIGHT FRONT 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).
With the scan tool, read DTCs.
Does the scan tool display: C1042-RIGHT FRONT TONE WHEEL PERFORMANCE?
Yes
>> Go To 2
No
>> Refer to the INTERMITTENT CONDITION diagnostic procedure.
Perform ABS VERIFICATION TEST - VER 1.
2.
CHECK THE RIGHT FRONT 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 Right Front Tone Wheel for damage.
Were any problems found?
Yes
>> Replace the Right Front Tone Wheel in accordance with the Service Information.
Perform ABS VERIFICATION TEST - VER 1.
No
>> Test Complete.
5 - 210
BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS
WK