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.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs and record on the repair order.
  Is the DTC active or pending?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
CHECK THE ABS MODULE FOR WHEEL SPEED SENSOR FAULTS
1. With the scan tool, read DTCs in the ABS Module.
  Are any Wheel Speed Sensor DTCs active or stored in the ABS Module?
  
  Yes
  - Refer to DIAGNOSTIC CODE INDEX, ABS and perform the appropriate diagnostic procedure.
  No
  - Go To 3
CHECK THE WHEEL SPEED SENSOR WIRING AND CONNECTORS FOR DAMAGE OR POOR FIT
1. Turn the ignition off.
2. Disconnect the Wheel Speed Sensor harness connector.
3. Disconnect the appropriate ABS harness connector.
4. Check the Wheel Speed Sensor wires:
  - for an open condition.
  - for a short to voltage.
  - for a short to ground.
  - for a short to each other.
  Were any problems found with the wiring?
  
  Yes
  - Perform the appropriate repair of the wiring.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST, 2.4L .
  No
  - Go To 4
REPLACE THE WHEEL SPEED SENSOR
1. Replace the Wheel Speed Sensor in accordance with the Service Information.
2. Reconnect all harness connectors.
3. Turn the ignition on.
4. With the scan tool, read DTCs and record on the repair order.
  Is the DTC still active?
  
  Yes
  - Replace the ABS Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM (ABS), REMOVAL .
  - Perform the ABS VERIFICATION TEST. Refer to ABS VERIFICATION TEST .
  No
  - Repair is complete.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST, 2.4L .