Circuit/System Testing

Front Door Ajar Switch Circuit Test

1. Ignition OFF, disconnect the harness connector at the affected door latch.
2. Test for less than 1 ohm of resistance between the listed low reference circuit terminal and ground.
   • Driver terminal 8
   • Passenger terminal 3
   • If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify the scan tool door ajar switch parameter is Inactive.
   • If not the specified value, test the listed signal circuit terminal for a short to ground. If the circuit tests normal, replace the affected door lock and side window switch.
     • Driver terminal 6
     • Passenger terminal 1
4. Install a 3A fused jumper wire between the listed signal circuit terminal and low reference circuit terminal. Verify the scan tool door ajar switch parameter is Active.
   • Driver terminal 6 to 8
   • Passenger terminal 1 to 3
5. If all circuits test normal, test or replace the affected door latch.

Rear Door Ajar Switch Circuit Test

1. Ignition OFF, disconnect the harness connector at the affected door latch.
2. Test for less than 1 ohm of resistance between the listed low reference circuit terminal and ground.
   • Left terminal 6
   • Right terminal 3
   • If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, verify the scan tool door ajar switch parameter is Door Closed.
   • If not the specified value, test the listed signal circuit terminal for a short to ground. If the circuit tests normal, replace the BCM.
     • Left terminal 4
     • Right terminal 1
4. Install a 3A fused jumper wire between the listed signal circuit terminal and low reference circuit terminal. Verify the scan tool door ajar switch parameter is Door Closed.
   • Left terminal 4 to 6
   • Passenger terminal 1 to 3
5. If all circuits test normal, test or replace the affected door latch.