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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the memory seat switch.
  2. Ignition OFF, verify that a test lamp illuminates between the B+ circuit terminal C and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  3. Ignition ON, verify the scan tool memory recall switch parameters display IDLE for both switches.
    • If not the specified value, test the appropriate switch signal circuit for a short to ground. If the circuit tests normal, replace the DDSA.
  4. Install a 3A fused jumper wire between the B+ circuit terminal C and the signal circuit terminal A. Verify the scan tool memory recall switch parameter displays MEMORY 1.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the DDSA.
  5. Install a 3A fused jumper wire between the B+ circuit terminal C and the signal circuit terminal B. Verify the scan tool memory recall switch parameter displays MEMORY 2.
    • If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the DDSA.
  6. If all circuits test normal, test or replace the memory seat switch.
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