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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1492 (Power Steering System) >> Diagnostic Information and Procedures >> DTC C0460 >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X4 harness connector at the PSCM.
  2. Ignition OFF, test for 10-200 Ω of resistance between the signal circuit terminal 1 and the signal circuit terminal 3.
    • If not within the specified range, test both signal circuits for an a short to ground or an open/high resistance. If the circuits test normal, replace the power steering motor.
  3. Ignition OFF, test for 3K-10KΩ of resistance between the signal circuit terminal 6 and the signal circuit terminal 3.
    • If not within the specified range, test both signal circuits for an a short to ground or an open/high resistance. If the circuits test normal, replace the power steering motor.
  4. Ignition OFF, test for 6K-20K Ω of resistance between the signal circuit terminal 5 and the signal circuit terminal 3.
    • If not within the specified range, test both signal circuits for an a short to ground or an open/high resistance. If the circuits test normal, replace the power steering motor.
  5. Ignition OFF, test for greater than 1M Ω of resistance between the signal circuit terminal 3 and the motor flange.
    • If less than the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the power steering motor.
  6. If all circuits test normal, replace the PSCM.
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