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.
Electric Power Steering System
DESCRIPTION
When replacing the power steering control module, the procedures of BEFORE REPLACEMENT and AFTER REPLACEMENT must be performed. For work procedure, refer to the following:
- Before power steering control module replacement.
- After power steering control module replacement.
BEFORE REPLACEMENT
When replacing the power steering control module, save "Operation log".
AFTER REPLACEMENT
After replacing the power steering control module, the following items must be performed:
- Power steering control module programming
- Adjust the neutral position of steering angle sensor.
WORK PROCEDURE (BEFORE REPLACING POWER STEERING CONTROL MODULE)
- SAVE "OPERATION LOG"
With CONSULT
Save "Operation Log", according to the procedure of "Programming" in CONSULT Operation Manual.
NOTE: Power steering control module part number is saved in "Operating Log" saved in CONSULT.- Replace the power steering control module. Refer to POWER STEERING CONTROL MODULE : Removal & Installation .
- After replacing the power steering control module, perform necessary work.
WORK PROCEDURE (AFTER REPLACING POWER STEERING CONTROL MODULE)
- CHECK "OPERATION LOG"
Check "Operation Log" saved before replacing the power steering control module, according to the procedure of "Programming" in CONSULT Operation Manual.
NOTE: For the vehicle that the programming is to be performed, check if "Operation Log" of Vehicle Identification Number (VIN) is in Saved Data List.Is there an applicable Operation Log in the Saved Data List?
YES
GO TO 2.
NO
GO TO 3.
- PERFORM POWER STEERING CONTROL MODULE PROGRAMMING
Perform power steering control module programming, according to "Programming" of CONSULT Operation Manual. Refer to CONSULT Operation Manual.
CAUTION: During programming, maintain the following conditions:- Ignition switch: ON
- Electric load: OFF
- Steering wheel: Not steering
- Battery voltage: 12 - 13.5 V (Check the value displayed on the CONSULT screen.)
- Vehicle speed: 0 km/h
GO TO 5.
- READ IN POWER STEERING CONTROL MODULE PART NUMBER BY "EPC LINKED"
Obtain power steering control module part number by SERVICE PARTS CATALOGUE GLOBAL EPC, according to the procedure of 'EPC linked' in CONSULT Operation Manual. Refer to CONSULT Operation Manual.
CAUTION: Be sure to select "EPC linked".
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.