Diagnosis Procedure

With M.U.T.-III SE

1. Check the FFD for power steering control module.
2. Read value of Item No. 28 "Internal fault code (for DTC)".

Is "008D" or "0090" set? 

YES: GO TO  2.

NO: GO TO  3.

With M.U.T.-III SE

1. Check the power steering control module power supply circuit. Refer to DIAGNOSIS PROCEDURE .
2. Electric motor switch OFF to ON.
3. Erase self-diagnostic results for "EPS/DAST 3".
4. Pull the parking brake switch.
   NOTE: Check the parking brake switch indicator is turn On.
5. Electric motor switch OFF.
6. Get out of the vehicle and close all doors.
7. Wait 65 seconds.
   NOTE:

   • Check the parking brake switch indicator turn OFF  .
   • If the rear brake caliper is heated, wait an hour so that parking brake switch indicator does not turn OFF  .
8. Start the engine.
9. Drive the vehicle.
   CAUTION: Always drive safely.
10. Stop the vehicle.
11. Perform Diagnostic Trouble Code for "EPS/DAST 3".

Is DTC "C1608-49" detected? 

YES: Replace the power steering control module (steering gear assembly). Refer to REMOVAL AND INSTALLATION .

NO: Check terminals and connection of each harness connector for malfunctioning conditions.

With M.U.T.-III SE

1. Electric motor switch OFF to ON.
2. Erase self-diagnostic results for "EPS/DAST 3".
3. Pull the parking brake switch.
   NOTE: Check the parking brake switch indicator is turn On.
4. Electric motor switch OFF.
5. Get out of the vehicle and close all doors.
6. Wait 65 seconds.
   NOTE:

   • Check the parking brake switch indicator turn OFF  .
   • If the rear brake caliper is heated, wait an hour so that parking brake switch indicator does not turn OFF  .
7. Perform Diagnostic Trouble Code for "EPS/DAST 3".

Is DTC "C1608-49" detected? 

YES: Replace the power steering control module (steering gear assembly). Refer to REMOVAL AND INSTALLATION .

NO: Check terminals and connection of each harness connector for malfunctioning conditions.