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Home › Pontiac › 2007 › Torrent AWD › Repair and Diagnosis › Steering › Power Steering System › Diagnostic Information and Procedures › DTC C0460 (Symptom 00) › Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the CN2 harness connector at the power steering motor.
  2. Ignition OFF, test for 2-20 ohms of resistance between the exciting circuit terminal 4 and the exciting ground circuit terminal 6.
    • If outside the specified range, test the exciting circuit and the exciting ground circuit for an open/high resistance or a short. If the circuit tests normal, replace the steering motor.
  3. Ignition OFF, test for 100-500 ohms of resistance between the SIN circuit terminal 3 and the exciting ground circuit terminal 6.
    • If outside the specified range, test the SIN circuit and the exciting ground circuit for an open/high resistance or a short. If the circuit tests normal, replace the steering motor.
  4. Ignition OFF, test for 300-1K ohms of resistance between the COS circuit terminal 2 and the exciting ground circuit terminal 6.
    • If outside the specified range, test the COS circuit and the exciting ground circuit for an open/high resistance or a short. If the circuit tests normal, replace the steering motor.
  5. Ignition OFF, test for greater than 1M ohms of resistance between the exciting ground circuit terminal 6 and the motor flange.
    • If less than the specified value, test the exciting ground circuit for a short to ground. If the circuit tests normal, replace the steering motor.
  6. If all circuits test normal, test or replace the power steering control module (PSCM).
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