Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Test
- CHECK FOR AN ACTIVE DTC NOTE:
This DTC must be active for the results of this test to be valid.
- Turn the ignition on.
- With the scan tool, read EPS DTCs and record on the vehicle repair order.
- With the scan tool, erase EPS DTCs.
- Start the vehicle.
- Turn the steering wheel from stop to stop several times.
- With the scan tool, read EPS DTCs.
Did the DTC return?
Yes
- Go To 2
No
- Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
- BCM PROXI CONFIGURATION ALIGNMENT
- In the Body Control Module (BCM) with the scan tool, under "Miscellaneous Functions" run the "PROXI Configuration Alignment" routine.
- Turn the ignition off.
- Cycle the ignition from off to on.
- Wait ten seconds.
- With the scan tool, read EPS DTCs.
Does the DTC remain active?
Yes
- Go To 3
No
- Test complete, the condition or conditions that originally set this DTC are not present at this time.
- CHECK RELATED HARNESS CONNECTIONS
- Disconnect the EPS Module harness connectors.
- Disconnect all related in-line harness connections (if equipped).
- Disconnect the related component harness connectors.
- Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
- Proper connector installation.
- Damaged connector locks.
- Corrosion.
- Other signs of water intrusion.
- Weather seal damage (if equipped).
- Bent terminals.
- Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
- Terminals that have been pushed back into the connector cavity.
- Perform a terminal drag test on each connector terminal to verify proper terminal tension.
Repair any conditions that are found.
- Connect the EPS Module harness connectors. Be certain that the harness connectors are fully seated and the connector locks are fully engaged.
- Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
- Connect the related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
- With the scan tool, erase DTCs.
- Using the recorded Event and Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
- With the scan tool, read EPS Module DTCs.
Did the DTC return?
Yes
- Replace the Electric Power Steering (EPS) Module in accordance with Service Information. Refer to MODULE, ELECTRIC POWER STEERING (EPS), REMOVAL AND INSTALLATION .
- Perform the EPS VERIFICATION TEST. Refer to EPS VERIFICATION TEST .
No
- Perform the EPS VERIFICATION TEST. Refer to EPS VERIFICATION TEST .
- Test complete.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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