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.

ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DTCS PRESENT
1. Turn the ignition on, engine not running.
2. With the scan tool, read DTCs in the ABS Module.
  Are there any ABS Module DTCs present?
  
  Yes
  - Perform the appropriate diagnostic procedures before continuing with this test. Refer to DIAGNOSTIC CODE INDEX, ABS .
  No
  - Go To 2
VERIFY THE IS ACTIVE
1. Perform any Service Bulletins that may apply.
2. Ignition on.
3. With the scan tool, read and record Environmental Data (EV Data) for this DTC.
4. With the scan tool, read the DTCs and record on vehicle work order.
5. With the scan tool, erase the DTCs.
6. Test drive the vehicle at a road speed between 15 and 35 km/h (9 and 22 mph).
7. With the scan tool, read the EPS DTCs.
  Is the DTC active at this time?
  
  Yes
  - Go To 3
  No
  - The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension and repair as necessary. If no problems are found, test complete.
ELECTRIC POWER STEERING (EPS) MODULE
1. Turn the ignition off.
2. Replace the Occupant Restraint Controller (ORC) in accordance with the Service Information. Refer to REMOVAL, ORC .
3. Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
4. Test drive the vehicle on mainly straight road conditions at a road speed between 15 and 35 km/h (9 and 22 mph).
5. With the scan tool, read the EPS DTCs.
  Does the DTC remain active?
  
  Yes
  - Replace the Electric Power Steering (EPS) Module in accordance with the Service Information. Refer to GEAR, REMOVAL .
  - Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Test complete.