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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the shift lock control solenoid.
  2. Ignition OFF, test for less than 30 Ω between the appropriate connector terminal listed below and ground:
    • Floor shift - terminal A
    • Column shift - terminal B
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Install a test lamp between connector terminal A and terminal B.
  4. Ignition ON, command the scan tool BCM Shift Lock Solenoid output control ON and OFF. The test lamp should turn ON and OFF as commanded.
    • If the test lamp is always ON, test the control circuit for short to voltage. If the circuit tests normal, replace the BCM.
    • If the test lamp is always OFF, test the control circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  5. If the circuit tests normal, test or replace the shift lock control solenoid.
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