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Circuit/System Testing (without HP5)

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 harness connector X3 at the PSCM.
  2. Ignition OFF, test for 2-20 Ω between the signal circuit terminal 4 and the signal circuit terminal 2.
    • If not within the specified range, test the signal circuits for a short to ground or an open/high resistance. If circuits test normal, replace the steering column.
  3. Ignition OFF, test for 100-500 Ω between the signal circuit terminal 8 and the signal circuit terminal 1.
    • If not within the specified range, test the signal circuits for a short to ground or an open/high resistance. If circuits test normal, replace the steering column.
  4. Ignition OFF, test for 300-1000 Ω between the signal circuit terminal 7 and the signal circuit terminal 1.
    • If not within the specified range, test the signal circuits for a short to ground or an open/high resistance. If circuits test normal, replace the steering column.
  5. Ignition OFF, test for 50-200 Ω between the signal circuit terminal 6 and the signal circuit terminal 1.
    • If not within the specified range, test the signal circuits for a short to ground or an open/high resistance. If circuits test normal, replace the steering column.
  6. Ignition OFF, test for 200-800 Ω between the signal circuit terminal 5 and the signal circuit terminal 1.
    • If not within the specified range, test the signal circuits for a short to ground or an open/high resistance. If circuits test normal, replace the steering column.
  7. Ignition OFF, test for greater than 1.0 MΩ between the signal circuit terminal 2 and the signal circuit terminal 1.
    • If less than the specified range, test the signal circuits for a short to ground or an open/high resistance. If circuits test normal, replace the steering column.
  8. Ignition OFF, test for greater than 1.0 MΩ of resistance between the signal circuit terminal 1 and ground.
    • If less than the specified range, test the signal circuit for a short to ground. If circuits test normal, replace the steering column.
  9. Ignition OFF, test for greater than 1.0 MΩ between the signal circuit terminal 2 and ground.
    • If less than the specified range, test the signal circuit for a short to ground. If circuits test normal, replace the steering column.
  10. If all circuits test normal, replace the PSCM.
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