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 STEERING ALIGNMENT
1. Check the Steering Alignment. Refer to WHEEL ALIGNMENT, STANDARD PROCEDURE .
  Is the Steering Alignment within specifications?
  
  Yes
  - Go To 2
  No
  - Repair as necessary.
  - Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
INSPECT THE STEERING GEAR FOR INCORRECT INSTALLATION, DAMAGE OR MECHANICAL FAILURE
1. Turn the ignition off.
2. Visually inspect the Steering Gear for Improper installation, damage or mechanical failure. Refer to GEAR, INSTALLATION .
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
VERIFY THE DTC IS ACTIVE
NOTE:
This DTC must be active for the results of this test to be valid.
1. Ignition on.
2. With the scan tool, read DTCs and record on vehicle work order.
3. With the scan tool, erase DTCs.
4. Start the engine.
5. Turn the steering wheel from stop to stop and back to center.
6. With the scan tool, read the EPS DTCs.
  Is the DTC active at this time?
  
  Yes
  - Replace the Electric Power Steering (EPS) Module in accordance with Service Information. Refer to GEAR, REMOVAL .
  - Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  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.
  - Perform the EPS VERIFICATION TEST. Refer to STANDARD PROCEDURE .