Diagnostic Test

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY THE DTC IS ACTIVE
1. Perform any Technical Service Bulletins (TSBs) that may apply.
2. Ignition on, engine not running.
3. With the scan tool, read and record the ABS DTCs.
4. With the scan tool, erase ABS DTCs.
  WARNING:
  To avoid possible serious or fatal injury, check brake capability is available before road testing.
5. Test drive the vehicle by turning left or right in a curving manner at a velocity between 15 and 35 km/h (9 and 22 mph).
6. Park the vehicle on level ground.
7. With the scan tool, read the ABS DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go To 2
  No
  - Perform the ABS-INTERMITTENT CONDITION TEST. Refer to ABS INTERMITTENT CONDITION .
CHECK THE ORC INSTALLATION
NOTE:
The Occupant Restraint Controller (ORC) installation and mounting bolt torque is crucial for proper operation.
1. Check the ORC for damaged, modified, and bent mounting brackets.
2. Check the ORC mounting bolts for a loose or over tightened condition.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Go To 3
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE
1. Turn the ignition off to the lock position.
2. Replace the Occupant Restraint Controller (ORC) in accordance with the Service Information. (Refer to REMOVAL, ORC ).
3. Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  WARNING:
  To avoid possible serious or fatal injury, check brake capability is available before road testing.
4. Test drive the vehicle by turning left or right in a curving manner at a velocity between 15 and 35 km/h (9 and 22 mph).
5. With the scan tool, read the DTCs.
  Does the DTC remain active?
  
  Yes
  - Replace the Anti-lock Brake System (ABS) Module in accordance with the Service Information. Refer to INTEGRATED CONTROL UNIT (ICU), REMOVAL .
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Test complete.