POWER ASSISTED SYSTEM (POWER STEERING) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC C2521 MOTOR MALFUNCTION
Trouble symptom:
• The steering wheel operation feels heavy.
• STEERING warning light illuminates.
Wiring diagram:
Electric power steering system Electric Power Steering System">
STEP | CHECK | YES | NO |
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. 1 — No. 3:
(PS2) No. 2 — No. 3:
Is there continuity?
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C2521 MOTOR MALFUNCTION">Go to Step 2.
Replace the steering gearbox. Electric Power 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 M? or more?
Replace the power steering control module. Power Steering Control Module">
Replace the steering gearbox. Electric Power Steering Gearbox">
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