Diagnosis Procedure

1. 1. Start the engine.
      CAUTION:

      Never drive the vehicle.

   2. Check that the power steering warning lamp turns OFF.

Does the power steering warning lamp turn OFF?

YES>>

GO TO 2.

NO>>

Select "Self Diagnostic Result" mode of "EPS/DAST 3", "DAST 1" and "DAST 2".

• EPS/DAST 3: Refer to DTC Index .
• DAST 1: Refer to DTC Index .
• DAST 2: Refer to DTC Index .

1. 1. Turn the steering wheel to left/right 90 degree or more from center position 2 times.
   2. Drive straight ahead at around 30 km/h (19 MPH) or more for more than 5 seconds.
      CAUTION:

      • Drive on a straight flat road.
      • Keep the steering wheel, so the vehicle stays in a straight line.
      NOTE: Drive at between 30 km/h (19 MPH) and 40 km/h (25 MPH), as much as possible. It is easy to succeed with the work.
   3. Stop the vehicle.

>>

GO TO 3.

1. Recheck the symptom and check that symptom is not reproduced on the same conditions.

Is the symptom corrected?

YES>>

Inspection End.

NO>>

GO TO 4.

1. 1. Drive straight ahead at 60 km/h (37 MPH) or more for more than 15 seconds.
      CAUTION:

      • Drive on a straight flat road.
      • Keep the steering wheel, so the vehicle stays in a straight line.
      NOTE: When the vehicle pulls to one side slightly, the driving at between 30 km/h (19 MPH) and 40 km/h (25 MPH) may not dissolve the symptom.
   2. Stop the vehicle.
   3. Repeat the driving and stopping 5 times.

>>

GO TO 5.

1. Recheck the symptom and check that symptom is not reproduced on the same conditions.

Is the symptom corrected?

YES>>

Inspection End.

NO>>

GO TO 6.

1. 1. Set the front wheel on the turn table.
      NOTE: Do not lift up the vehicle during "DAST CALIBRATION (MODE1)".
   2. Set the front wheel to the straight-ahead position.
   3. Connect the battery charger to protect the 12V battery.
      NOTE: "DAST CALIBRATION (MODE1)" has a high current draw.

>>

GO TO 7.

1. CONSULT
   1. Remove steering upper shaft mounting bolt (steering clutch assembly side). Refer to Removal and Installation .
      CAUTION:

      • When removing steering column assembly, fix the steering upper shaft using wire etc., because steering upper shaft may separate the steering column side and steering clutch side. Never separate steering upper shaft steering column side and steering clutch side.
      • Place a matching marks on steering upper shaft. When the steering upper shaft is separated, use matching marks.
   2. Move steering upper shaft to the steering column side to separate it from steering clutch assembly.
      CAUTION:

      When separating steering upper shaft, never insert a tool, such as a screwdriver, into the yoke groove to pull out the steering upper shaft. In the case of the violation of the above, replace steering upper shaft with a new one.

   3. Ignition switch ON.
      CAUTION:

      Never start the engine.

   4. Select "ST ANGLE SENSOR" in "Data Monitor" mode of "EPS/DAST 3" and then check the value.
   5. Turn the steering wheel until the value is 0 deg.

>>

GO TO 8.

1. Confirm that rear cap projection of steering gear is aligned in the center of the lower joint. Perform "INSPECTION AFTER INSTALLATION." Refer to Removal and Installation .

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Repair as necessary, GO TO 9.

1. CONSULT Perform "DAST CALIBRATION (MODE1)" while holding the steering wheel with hand. Refer to Description .
   CAUTION:

   Never release the hand from the steering wheel.

>>

GO TO 10.

1. CONSULT
   1. After the movement of front wheel stops and then the steering clutch assembly is released by DAST calibration, connect the steering upper shaft to steering clutch assembly. Refer to Removal and Installation .
      CAUTION:

      About the aligning, turn the shaft part of steering clutch assembly by hand.

      NOTE: About the direction of rotation, both is OK. Because the shaft part of steering clutch is free in this timing.
   2. Select "End".
   3. Ignition switch OFF.
      CAUTION:

      Be sure to perform this step.

>>

GO TO 11.

1. CONSULT
   1. Ignition switch ON.
      CAUTION:

      Never start the engine.

   2. Perform "DAST CALIBRATION (MODE1)". Refer to Description .

>>

GO TO 12.

1. CONSULT
   1. Select "ST ANGLE SENSOR ADJUSTMENT" in "Work support" mode of "ABS".
   2. Select "Start".
      CAUTION:

      Never touch steering wheel while adjusting steering angle sensor.

   3. After approx. 10 seconds, select "End".
   4. Ignition switch OFF, then place it ON again.
      CAUTION:

      Be sure to perform this step.

>>

Inspection End.