POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC 21 MOTOR FAILURE 1 (MOTOR)

TROUBLE SYMPTOM:

• The steering wheel operation feels heavy.

• Steering warning light illuminates.

WIRING DIAGRAM:

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1.CHECK MOTOR UNIT.

1) Turn the ignition switch to OFF.

2) Disconnect the connector (PS2) from the power steering control module.

3) Use a tester to check for continuity in the motor.

Connector & terminal

(PS2) No. 1 — No. 2:

(PS2) No. 3 — No. 2:

(PS2) No. 1 — No. 3:

Is there continuity?

Replace the steering gearbox.

2.CHECK MOTOR INSULATION.

Use a tester to check for short circuits in the motor.

Connector & terminal

(PS2) No. 1 — Steering gearbox body:

(PS2) No. 2 — Steering gearbox body:

(PS2) No. 3 — Steering gearbox body:

Is the resistance 1 MΩ or more?

Replace the power steering control module.

Replace the steering gearbox.