Jeep Liberty KJ. Manual — part 835
8.
CHECK RIGHT REAR BRAKE HARDWARE FOR DAMAGE
Visually inspect the right rear brake linings for contamination and overheating. Check for dragging, bent, and seized
components and hardware.
Is any brake lining, component, or hardware damaged?
Yes
>> Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Go To 9
9.
VERIFY DTC IS ACTIVE
Replace the Right Rear WSS in accordance with the Service Information.
Turn the ignition on.
With the scan tool, erase ABS DTCs.
WARNING: Ensure brake capability is available before road testing.
Road test the vehicle over 40 km/h (25 m.p.h.).
With the scan tool, read ABS DTCs.
Does DTC C1035–RIGHT REAR WHEEL SPEED COMPARATIVE PERFORMANCE reset?
Yes
>> Replace the Anti-Lock Brakes Module in accordance with the Service Information.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Test Complete.
5 - 100
BRAKES - ABS ELECTRICAL DIAGNOSTICS
KJ
C1041–LEFT FRONT TONE WHEEL PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on, but not if wheel speed is less than 20 km/h (12 m.p.h.).
Or, with low supply voltage.
•
Set Condition:
If the Anti-Lock Brakes Module detects a periodic loss of WSS signal.
Possible Causes
LEFT FRONT TONE WHEEL
Diagnostic Test
1.
VERIFY DTC IS ACTIVE
Turn the ignition on.
With the scan tool, read ABS DTCs.
With the scan tool, read and record Environmental Data (EV Data).
With the scan tool, erase DTCs.
Cycle the ignition switch.
WARNING: Ensure brake capability is available before road testing.
Test drive the vehicle. Slowly accelerate as straight as possible from a stop to 40 km/h (25 m.p.h.).
With the scan tool, read ABS DTCs.
Does the scan tool display: C1041–LEFT FRONT TONE WHEEL PERFORMANCE?
Yes
>> Go To 2
No
>> Perform the ABS Intermittent Condition diagnostic procedure in this Section.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
2.
INSPECT LEFT FRONT TONE WHEEL
Inspect the tone wheel teeth for missing teeth, cracks, and looseness. The teeth must be perfectly square, not bent,
or nicked.
Were any problems found?
Yes
>> Replace the Left Front Tone Wheel in accordance with the Service Information.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Test Complete.
KJ
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 101
C1042–RIGHT FRONT TONE WHEEL PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on, but not if wheel speed is less than 20 km/h (12 m.p.h.).
Or, with low supply voltage.
•
Set Condition:
If the Anti-Lock Brakes Module detects a periodic loss of WSS signal.
Possible Causes
RIGHT FRONT TONE WHEEL
Diagnostic Test
1.
VERIFY DTC IS ACTIVE
Turn the ignition on.
With the scan tool, read ABS DTCs.
With the scan tool, read and record Environmental Data (EV Data).
With the scan tool, erase DTCs.
Cycle the ignition switch.
WARNING: Ensure brake capability is available before road testing.
Test drive the vehicle. Slowly accelerate as straight as possible from a stop to 40 km/h (25 m.p.h.).
With the scan tool, read ABS DTCs.
Does the scan tool display: C1042–RIGHT FRONT TONE WHEEL PERFORMANCE?
Yes
>> Go To 2
No
>> Perform the ABS Intermittent Condition diagnostic procedure in this Section.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
2.
INSPECT RIGHT FRONT TONE WHEEL
Inspect the tone wheel teeth for missing teeth, cracks, and looseness. The teeth must be perfectly square, not bent,
or nicked.
Were any problems found?
Yes
>> Replace the Right Front Tone Wheel in accordance with the Service Information.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Test Complete.
5 - 102
BRAKES - ABS ELECTRICAL DIAGNOSTICS
KJ
C1043–LEFT REAR TONE WHEEL PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on, but not if wheel speed is less than 20 km/h (12 m.p.h.).
Or, with low supply voltage.
•
Set Condition:
When the Anti-Lock Brakes Module detects a periodic loss of WSS signal.
Possible Causes
LEFT REAR TONE WHEEL
Diagnostic Test
1.
VERIFY DTC IS ACTIVE
Turn the ignition on.
With the scan tool, read ABS DTCs.
With the scan tool, read and record Environmental Data (EV Data).
With the scan tool, erase DTCs.
Cycle the ignition switch.
WARNING: Ensure brake capability is available before road testing.
Test drive the vehicle. Slowly accelerate as straight as possible from a stop to 40 km/h (25 m.p.h.).
With the scan tool, read ABS DTCs.
Does the scan tool display: C1043–LEFT REAR TONE WHEEL PERFORMANCE?
Yes
>> Go To 2
No
>> Perform the ABS Intermittent Condition diagnostic procedure in this Section.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
2.
INSPECT LEFT REAR TONE WHEEL FOR DAMAGE
Inspect the tone wheel teeth for missing teeth, cracks, and looseness. The teeth must be perfectly square, not bent,
or nicked.
Were any problems found?
Yes
>> Replace the Left Rear Tone Wheel in accordance with the Service Information.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Test Complete.
KJ
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 103
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