Circuit/System Testing

Driver Door Lock Switch Malfunction

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S13D Door Lock Switch-Driver. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 Ω between the ground circuit terminal A and ground.
   • If 10 Ω or greater 
   1. Ignition OFF.
   2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
   • Go to next step: If less than 10 Ω 
3. Ignition ON.
4. Verify the scan tool Driver Door Lock Switch parameter is Inactive.
   • If not Inactive 
   1. Ignition OFF, disconnect the X7 harness connector at the K9 Body Control Module.
   2. Test for infinite resistance between the signal circuit terminal G and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the K9 Body Control Module.
   • Go to next step: If Inactive 
5. Verify the scan tool Driver Door Unlock Switch parameter is Inactive.
   • If not Inactive 
   1. Ignition OFF, disconnect the X7 harness connector at the K9 Body Control Module.
   2. Test for infinite resistance between the signal circuit terminal F and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the K9 Body Control Module.
   • Go to next step: If Inactive 
6. Install a 3 A fused jumper wire between the signal circuit terminal G and the ground circuit terminal A.
7. Verify the scan tool Driver Door Lock Switch parameter is Active.
   • If not Active 
   1. Ignition OFF, disconnect the X7 harness connector at the K9 Body Control Module, ignition ON.
   2. Test for less than 1 V between the signal circuit terminal G and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • Go to next step: If less than 1 V
   3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K9 Body Control Module.
   • Go to next step: If Active 
8. Install a 3 A fused jumper wire between the signal circuit terminal F and the ground circuit terminal A.
9. Verify the scan tool Driver Door Unlock Switch parameter is Active.
   • If not Active 
   1. Ignition OFF, disconnect the X7 harness connector at the K9 Body Control Module, ignition ON.
   2. Test for less than 1 V between the signal circuit terminal F and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • Go to next step: If less than 1 V
   3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K9 Body Control Module.
   • Go to next step: If Active 
10. Test or replace the S13D Door Lock Switch-Driver.

Passenger Door Lock Switch Inoperative

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S13P Door Lock Switch-Passenger. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 Ω between the ground circuit terminal A and ground.
   • If 10 Ω or greater 
   1. Ignition OFF.
   2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
   • Go to next step: If less than 10 Ω 
3. Install a 3 A fused jumper wire between the signal circuit terminal G and the ground circuit terminal A.
4. Verify the scan tool Passenger Door Lock Switch parameter is Active.
   • If not Active 
   1. Ignition OFF, disconnect the X6 harness connector at the K9 Body Control Module, ignition ON.
   2. Test for less than 1 V between the signal circuit terminal G and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • Go to next step: If less than 1 V
   3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K9 Body Control Module.
   • Go to next step: If Active 
5. Install a 3 A fused jumper wire between the signal circuit terminal F and the ground circuit terminal A.
6. Verify the scan tool Passenger Door Unlock Switch parameter is Active.
   • If not Active 
   1. Ignition OFF, disconnect the X6 harness connector at the K9 Body Control Module, ignition ON.
   2. Test for less than 1 V between the signal circuit terminal F and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • Go to next step: If less than 1 V
   3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K9 Body Control Module.
   • Go to next step: If Active 
7. Test or replace the S13P Door Lock Switch-Passenger.

Cargo Door Lock Switch Inoperative

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S13A Door Lock Switch-Rear Cargo. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 Ω between the ground circuit terminal E and ground.
   • If 10 Ω or greater 
   1. Ignition OFF.
   2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
   • Go to next step: If less than 10 Ω 
3. Install a 3 A fused jumper wire between the signal circuit terminal D and the ground circuit terminal E.
4. Verify the scan tool Passenger Door Lock Switch parameter is Active.
   • If not Active 
   1. Ignition OFF, disconnect the X6 harness connector at the K9 Body Control Module, ignition ON.
   2. Test for less than 1 V between the signal circuit terminal D and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • Go to next step: If less than 1 V
   3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K9 Body Control Module.
   • Go to next step: If Active 
5. Install a 3 A fused jumper wire between the signal circuit terminal A and the ground circuit terminal E
6. Verify the scan tool Passenger Door Unlock Switch parameter is Active.
   • If not Active 
   1. Ignition OFF, disconnect the X6 harness connector at the K9 Body Control Module, ignition ON.
   2. Test for less than 1 V between the signal circuit terminal A and ground.
      • If 1 V or greater, repair the short to voltage on the circuit.
      • Go to next step: If less than 1 V
   3. Test for less than 2 Ω in the signal circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K9 Body Control Module.
   • Go to next step: If Active 
7. Test or replace the S13A Door Lock Switch-Rear Cargo.

Passenger/Cargo Door Lock Switch Malfunction

1. Ignition OFF, disconnect the harness connector at the S13P Door Lock Switch-Passenger.
2. Disconnect the harness connector at the S13A Door Lock Switch-Rear Cargo, ignition ON
3. Verify the scan tool Passenger Door Lock Switch parameter is Inactive.
   • If not Inactive 
   1. Ignition OFF, disconnect the X6 harness connector at the K9 Body Control Module.
   2. Test for infinite resistance between the K9 Body Control Module signal circuit terminal 18 and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance, replace the K9 Body Control Module
   • Go to next step: If Inactive 
4. Verify the scan tool Passenger Door Unlock Switch parameter is Inactive.
   • If not Inactive 
   1. Ignition OFF, disconnect the X6 harness connector at the K9 Body Control Module.
   2. Test for infinite resistance between the K9 Body Control Module signal circuit terminal 9 and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance, replace the K9 Body Control Module
   • Go to next step: If Inactive 
5. Connect the harness connector at the S13P Door Lock Switch-Passenger.
6. Verify the scan tool Passenger Door Lock Switch parameter changes from Inactive to Active when pressing the appropriate switch on the S13P Door Lock Switch-Passenger.
   • If Active 

     Test or replace the S13P Door Lock Switch-Passenger.

   • Go to next step: If the parameter changes 
7. Verify the scan tool Passenger Door Unlock Switch parameter changes from Inactive to Active when pressing the appropriate switch on the S13P Door Lock Switch-Passenger.
   • If Active 

     Test or replace the S13P Door Lock Switch-Passenger.

   • Go to next step: If the parameter changes 
8. Connect the harness connector at the S13A Door Lock Switch-Rear Cargo.
9. Verify the scan tool Passenger Door Lock Switch parameter changes from Inactive to Active when pressing the appropriate switch on the S13A Door Lock Switch-Rear Cargo.
   • If Active 

     Test or replace the S13A Door Lock Switch-Rear Cargo.

   • Go to next step: If the parameter changes 
10. Verify the scan tool Passenger Door Unlock Switch parameter changes from Inactive to Active when pressing the appropriate switch on the S13A Door Lock Switch-Rear Cargo.
    • If Active 

      Test or replace the S13A Door Lock Switch-Rear Cargo.

    • Go to next step: If the parameter changes 
11. All OK.

Driver/Passenger/Cargo Door Lock Malfunction

1. Ignition OFF and all vehicle systems OFF, disconnect the X2 harness connector at the appropriate driver, passenger or cargo A23 Door Latch Assembly. It may take up to 2 min for all vehicle systems to power down.
2. Test for less than 10 Ω between the control circuit terminal A and ground.
   • If 10 Ω or greater 
   1. Ignition OFF, disconnect the harness connector at the X52A Fuse Block-Passenger Compartment
   2. Test for less than 2 Ω in the control circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the X52A Fuse Block-Passenger Compartment.
   • Go to next step: If less than 10 Ω 
3. Test for less than 10 Ω between the control circuit terminal B and ground.
   • If 10 Ω or greater 
   1. Ignition OFF, disconnect the harness connector at the X52A Fuse Block-Passenger Compartment.
   2. Test for less than 2 Ω in the control circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the X52A Fuse Block-Passenger Compartment.
   • Go to next step: If less than 10 Ω 
4. Connect a test lamp between control circuit terminal A and control circuit terminal B, ignition ON.
5. Verify the test lamp turns ON when commanding the LOCK and UNLOCK states when pushing the appropriate switch on the S13D Door Lock Switch-Driver.
   • If the test lamp remains OFF during either of the commands 
   1. Ignition OFF, remove the test lamp, disconnect the harness connector at the X52A Fuse Block-Passenger Compartment.
   2. Test for infinite resistance between each control circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the X52A Fuse Block-Passenger Compartment.
   • Go to next step: If the test lamp turns ON during each of the commands 
6. Test or replace the A23 Door Latch Assembly.

Right Rear Door Lock Malfunction

1. Ignition OFF, disconnect the harness connector at the M14RR Door Lock Actuator-Right Rear.
NOTE:

The door door must be closed prior to performing test

2. Connect a test lamp between the control circuit terminal A and control circuit terminal B, ignition ON.
3. Verify the test lamp turns ON and OFF when commanding the doors to LOCK and UNLOCK with the S13D Door Lock Switch-Driver.
   • If the test lamp remains OFF during either of the commands 
   1. Ignition OFF, remove the test lamp, disconnect the harness connector at the X52A Fuse Block-Passenger Compartment.
   2. Test for infinite resistance between each control circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
      • If infinite resistance, replace the X52A Fuse Block-Passenger Compartment.
   • Go to next step: If the test lamp turns ON during each of the commands 
4. Test or replace the M14RR Door Lock Actuator-Right Rear.

Door Lock And Unlock Inoperative

1. Ignition OFF and all vehicle systems OFF, disconnect the X1 harness connector at the X52A Fuse Block-Passenger Compartment. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 Ω between the ground circuit terminal E2 and ground.
   • If 10 Ω or greater 
   1. Ignition OFF.
   2. Test for less than 2 Ω in the ground circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, repair the open/high resistance in the ground connection.
   • Go to next step: If less than 10 Ω 
3. Connect the X1 harness connector at the X52A Fuse Block-Passenger Compartment. Disconnect the X7 harness connector at the K9 Body Control Module, ignition ON.
4. Connect a 3A fused jumper wire between the control circuit terminal 7 and B+, listen as the KR97 Door Lock Relay activates
   • If the KR97 Door Lock Relay does not activate 
   1. Ignition OFF, remove the jumper wire, disconnect the X1 harness connector at the X52A Fuse Block-Passenger Compartment.
   2. Test for infinite resistance between the K9 Body Control Module control circuit terminal 7 X7 and ground.
      • If less than Infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
   3. Test for less than 2 Ω in the control circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the X52A Fuse Block-Passenger Compartment.
   • Go to next step: If the KR97 Door Lock Relay activates 
5. Connect a 3A fused jumper wire between the control circuit terminal 6 and ground, listen as the KR92D Driver Door Unlatch Relay activates
   • If the KR92D Driver Door Unlatch Relay does not activate 
   1. Ignition OFF, remove the jumper wire, disconnect the X1 harness connector at the X52A Fuse Block-Passenger Compartment.
   2. Test for infinite resistance between the K9 Body Control Module control circuit terminal 6 X7 and ground.
      • If less than Infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
   3. Test for less than 2 Ω in the control circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the X52A Fuse Block-Passenger Compartment.
   • Go to next step: If the KR92D Driver Door Unlatch Relay activates 
6. Connect a 3A fused jumper wire between the control circuit terminal 9 and ground, listen as the KR90P Passenger/Cargo Door Unlock Relay activates
   • If the KR90P Passenger/Cargo Door Unlock Relay does not activate 
   1. Ignition OFF, remove the jumper wire, disconnect the X1 harness connector at the X52A Fuse Block-Passenger Compartment.
   2. Test for infinite resistance between the K9 Body Control Module control circuit terminal 9 X7 and ground.
      • If less than Infinite resistance, repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
   3. Test for less than 2 Ω in the control circuit end to end.
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the X52A Fuse Block-Passenger Compartment.
   • Go to next step: If the KR90P Passenger/Cargo Door Unlock Relay activates 
7. Replace the K9 Body Control Module.