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Home >> Suzuki >> 2009 >> XL7 Limited, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 80 (Security And Locks) >> Diagnostic Information and Procedures >> Power Door Locks Inoperative >> Circuit/System Testing >> Door Lock Malfunction
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Door Lock Malfunction

WARNING: This page is about a different car, the 2008 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X1, X2 and X3 harness connectors at the I/P fuse block.
  2. Test for less than 1.0 ohm between the ground circuit terminal 25 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition OFF, verify that a test lamp illuminates between the B+ circuit terminal 3 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 a test lamp between the control circuit terminal 42 and ground.
  5. Command the doors to LOCK with a scan tool. The test lamp should briefly illuminate while commanding the LOCK state.
    • If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM.
    • If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.
  6. Connect a test lamp between the control circuit terminal 41 and B+.
  7. Command the doors to UNLOCK with a scan tool. The test lamp should briefly illuminate while commanding the UNLOCK state.
    • If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM.
    • If the test lamp is always OFF, test the control circuit for a short to voltage or and open/high resistance. If the circuit tests normal, replace the BCM.
  8. Connect a test lamp between the control circuit terminal 8 and B+.
  9. Command the driver door to UNLOCK with a scan tool. The test lamp should briefly illuminate while commanding the UNLOCK state.
    • If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the BCM.
    • If the test lamp is always OFF, test the control circuit for a short to voltage or and open/high resistance. If the circuit tests normal, replace the BCM.
  10. Ignition OFF, connect the X1, X2 and X3 harness connectors at the I/P fuse block and disconnect the harness connector at the appropriate door latch.
  11. Test for less than 1 ohm between the control circuit terminal and ground of the appropriate door latch listed below:
    • Driver door latch control circuit terminal 2
    • Driver door latch control circuit terminal 3
    • Left rear door latch control circuit terminal 1
    • Left rear door latch control circuit terminal 2
    • Right rear door latch control circuit terminal 5
    • Right rear door latch control circuit terminal 6
    • Front passenger door latch control circuit terminal 5
    • Front passenger door latch control circuit terminal
    • If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If circuits test normal, replace the I/P fuse block.
  12. Connect a test lamp between control circuit terminals of the appropriate door latch listed below:
    • Driver door latch control circuit terminal 2 and control circuit terminal 3
    • Left rear door latch control circuit terminal 1 and control circuit terminal 2
    • Right rear door latch control circuit terminal 5 and control circuit terminal 6
    • Front passenger door latch control circuit terminal 5 and control circuit terminal 6
  13. Ignition ON, command the door latch to LOCK and UNLOCK with a scan tool. The test lamp should turn ON when commanding the LOCK and UNLOCK states.
    • If the test lamp remains OFF during either of the commands, test for a short to ground on both control circuits. If the circuits test normal, replace the I/P fuse block.
  14. If all circuits test normal, test or replace the door latch.
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