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 "0030" or "0020" set? 

YES-1: "0030" is displayed: Perform calibration of steering torque sensor. Refer to WORK PROCEDURE .

YES-2: "0020" is displayed:

GO TO  2.

NO: GO TO  3.

With M.U.T.-III SE

1. Select "ABS", "Data List" and "Steering angle" in this order.
2. Position the steering wheel in the straight-ahead position.

Is the display value "± 2.5 deg"? 

YES: GO TO  3.

NO: Perform steering angle sensor neutral position adjustment. Refer to DESCRIPTION

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. Start the engine.
8. Drive the vehicle straight forward at more than 30 km/h (19 MPH).
   CAUTION: Always drive safely.
9. Stop the vehicle.
10. Perform Diagnostic Trouble Code for "EPS/DAST 3".

Is DTC "C1608-46" 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.