Jeep Liberty KJ. Manual — part 849
C123B–ESP SYSTEM CONTROL TOO LONG
For a complete wiring diagram Refer to Section 8W.
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BRAKES - ABS ELECTRICAL DIAGNOSTICS
KJ
•
When Monitored:
During active automatic yaw control.
•
Set Condition:
If the automatic yaw control cycle is too long.
Possible Causes
WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE
DYNAMICS SENSOR
ANTI-LOCK BRAKES MODULE
Diagnostic Test
1.
VERIFY DTC IS ACTIVE
Turn the ignition on.
With the scan tool, read and record ABS DTCs.
With the scan tool, read and record Environmental Data (EV Data).
With the scan tool, erase ABS DTCs.
Cycle the ignition switch.
WARNING: Ensure brake capability is available before road testing.
Test drive the vehicle by turning the vehicle left or right in a curving manner at a velocity between 10 and 20 km/hr
(6 and 12 m.p.h.).
Park the vehicle.
With the scan tool, read ABS DTCs.
Does this DTC reset?
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 RELATED WIRING HARNESS, TERMINALS, & CONNECTORS
Turn the ignition off.
Check all related wiring for pinched, chafed, pierced, and partially broken wires.
Check all related connectors for broken, bent, pushed out, and corroded terminals.
Were any problems found?
Yes
>> Repair as necessary.
Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
>> Go To 3
3.
REPLACE THE DYNAMICS SENSOR & VERIFY IF THE DTC IS STILL ACTIVE
Replace the Dynamics Sensor in accordance with the Service Information.
Connect all previously disconnected components and connectors.
Turn the ignition on.
With the scan tool, erase ABS DTCs.
Cycle the ignition switch.
WARNING: Ensure brake capability is available before road testing.
Test drive the vehicle by turning the vehicle left or right in a curving manner at a velocity between 10 and 20 km/hr
(6 and 12 m.p.h.).
Park the vehicle.
KJ
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 157
With the scan tool, read ABS DTCs.
Does this DTC 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
>> Perform ABS VERIFICATION TEST - VER 1. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
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BRAKES - ABS ELECTRICAL DIAGNOSTICS
KJ
C123C–DYNAMICS SENSOR MOUNTING/INSTALLATION PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
KJ
BRAKES - ABS ELECTRICAL DIAGNOSTICS
5 - 159
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