DTC C2532: Control Module Peripheral Circuit

Trouble symptom: 

• The steering wheel operation feels heavy.
• STEERING warning light illuminates.

Wiring diagram: 

Electric power steering system Ref. to WIRING SYSTEM>ELECTRIC POWER STEERING SYSTEM .

Courtesy of SUBARU OF AMERICA, INC.

1. CHECK CONNECTOR  .

   Check the connection status of the power steering control module and motor harness (PS2).

   Is the connector firmly installed?

   Yes: Go to  2.

   No: Install the connector, and check again.

2. CHECK CONNECTOR  .

   Check the appearance at connection of the power steering control module and motor harness (PS2).

   Is the motor harness grommet coming out from the connector?

   Yes: Replace the steering gearbox. Ref. to POWER ASSISTED SYSTEM (POWER STEERING)>ELECTRIC POWER STEERING GEARBOX .

   No: Go to  3.

3. 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? (While wiggling the harness)

   Yes: Go to  4.

   No: Replace the steering gearbox. Ref. to POWER ASSISTED SYSTEM (POWER STEERING)>ELECTRIC POWER STEERING GEARBOX .

4. 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? (While wiggling the harness)

   Yes: Replace the power steering control module. Ref. to POWER ASSISTED SYSTEM (POWER STEERING)>POWER STEERING CONTROL MODULE .

   No: Replace the steering gearbox. Ref. to POWER ASSISTED SYSTEM (POWER STEERING)>ELECTRIC POWER STEERING GEARBOX .