Circuit/System Testing

Driver Outside Mirror Folding Command Malfunction

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the A9A Outside Rearview Mirror-Driver. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 Ω between the control circuit terminal 4 and ground.
   • If 10 Ω or greater 
   1. Ignition OFF, disconnect the harness connector at the K96D Mirror Control Module-Driver.
   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 K96D Mirror Control Module-Driver.
   • Go to next step: If less than 10 Ω 
3. Test for less than 10 Ω between the control circuit terminal 18 and ground.
   • If 10 Ω or greater 
   1. Ignition OFF, disconnect the harness connector at the K96D Mirror Control Module-Driver.
   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 K96D Mirror Control Module-Driver.
   • Go to next step: If less than 10 Ω 
4. Connect a test lamp between control circuit terminal 4 and control circuit terminal 18, ignition ON.
5. Verify the test lamp turns ON when commanding the FOLD and UNFOLD states with a scan tool.
   • If the test lamp remains OFF during either of the commands 
   1. Ignition OFF, remove the test lamp, disconnect the harness connector at the K96D Mirror Control Module-Driver.
   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 K96D Mirror Control Module-Driver.
   • Go to next step: If the test lamp turns ON during each of the commands 
6. Test or replace the A9A Outside Rearview Mirror-Driver.

Passenger Outside Mirror Folding Command Malfunction

1. Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the A9B Outside Rearview Mirror-Passenger. It may take up to 2 minutes for all vehicle systems to power down.
2. Test for less than 10 Ω between the control circuit terminal 4 and ground.
   • If 10 Ω or greater 
   1. Ignition OFF, disconnect the X2 harness connector at the S79P Window Switch-Passenger.
   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 S79P Window Switch-Passenger.
   • Go to next step: If less than 10 Ω 
3. Test for less than 10 Ω between the control circuit terminal 18 and ground.
   • If 10 Ω or greater 
   1. Ignition OFF, disconnect the X2 harness connector at the S79P Window Switch-Passenger.
   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 S79P Window Switch-Passenger.
   • Go to next step: If less than 10 Ω 
4. Connect a test lamp between control circuit terminal 4 and control circuit terminal 18, ignition ON.
5. Verify the test lamp turns ON when commanding the FOLD and UNFOLD states with a scan tool.
   • If the test lamp remains OFF during either of the commands 
   1. Ignition OFF, remove the test lamp, disconnect the X2 harness connector at the S79P Window Switch-Passenger.
   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 S79P Window Switch-Passenger.
   • Go to next step: If the test lamp turns ON during each of the commands 
6. Test or replace the A9B Outside Rearview Mirror-Passenger.