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Home >> Jeep >> 2021 >> Cherokee Trailhawk >> Repair and Diagnosis >> Steering >> Steering Control Systems >> (Electronic Power Steering (EPS) Module - Electrical Diagnostics) >> DTC Troubleshooting >> C1592-4B-Electronic Power Steering Motor Circuit - Over Temperature >> Diagnostic Test

Diagnostic Test

  1. 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 

      No 

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  2. VERIFY THE DTC IS ACTIVE 
    NOTE:

    This DTC must be active for the results of this test to be valid.

    NOTE:

    Let the vehicle sit for 30 minutes before continuing with this test.

    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 several times.
    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 EPS VERIFICATION TEST  .

      No 

      • The condition or conditions that originally set this DTC are not present at this time. Using the appropriate SYSTEM 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 EPS VERIFICATION TEST  .