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Home >> Chevrolet >> 2007 >> Impala Police >> Repair and Diagnosis >> Body & Frame >> Seats >> Power Seat System >> Diagnostic Information and Procedures >> Power Seat Inoperative >> Circuit/System Testing

Circuit/System Testing

  1. Disconnect the harness connector at the seat adjuster switch.
  2. Test for less than 1 ohm of resistance between the ground circuit terminal B and ground.
    • If greater than 1 ohm, test the ground circuit for an open/high resistance.
  3. Verify that a test lamp illuminates between the B+ circuit terminal and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. Connect the harness connector at the seat adjuster switch.
  5. Disconnect the harness connector at the appropriate seat motor assembly.
  6. Connect a test lamp between the motor control circuit terminals of the inoperative motor.
  7. Verify that the test lamp illuminates while pressing the appropriate seat switch in both directions.
    • If the test lamp does not illuminate for both directions, test the motor circuits for a short to ground or an open/high resistance. If the circuits test normal replace the seat adjuster switch.
  8. If the circuits test normal replace the inoperative motor assembly.
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