Driver Window Inoperative

Ignition OFF and all vehicle systems OFF, disconnect the harness connector at the S79D Window Switch-Driver. It may take up to 2 minutes for all vehicle systems to power down.
Test for less than 10 Ω between the ground circuit terminal 13 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.
- If less than 10 Ω
Ignition ON.
Verify a test lamp illuminates between the ignition circuit terminal 8 and ground.
- If the test lamp does not illuminate and the circuit fuse is good
1. Ignition OFF.
2. Test for less than 2 Ω in the ignition circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, refer to Retained Accessory Power Malfunction .
- If the test lamp does not illuminate and the circuit fuse is open
1. Ignition OFF.
2. Test for infinite resistance between the ignition circuit and ground.
  - If less than infinite resistance, repair the short to ground on the circuit.
  - If infinite resistance
3. Test for infinite resistance between the control circuits listed below and ground:
  - Control circuit terminal 7
  - Control circuit terminal 9
  - Control circuit terminal 12
  - Control circuit terminal 14
  - If less than infinite resistance, repair the short to ground on the circuit.
  - If infinite resistance, replace the S79D Window Switch-Driver.
- If the test lamp illuminates
Ignition OFF and all vehicle systems OFF, connect the harness connector at the S79D Window Switch-Driver and disconnect the harness connector at the M74D Window Motor-Driver. It may take up to 2 minutes for all vehicle systems to power down
Test for less than 10 Ω between the control circuit terminal 1 and ground.
- If 10 Ω or greater
1. Ignition OFF, disconnect the harness connector at the S79D Window Switch-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 S79D Window Switch-Driver.
- If less than 10 Ω
Test for less than 10 Ω between the control circuit terminal 2 and ground.
- If 10 Ω or greater
1. Ignition OFF, disconnect the harness connector at the S79D Window Switch-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 S79D Window Switch-Driver.
- If less than 10 Ω
Connect a test lamp between control circuit terminal 1 and control circuit terminal 2, Ignition ON.
Verify the test lamp turns ON when commanding the UP and DOWN states with the S79D Window 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 S79D Window Switch-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 S79D Window Switch-Driver.
- If the test lamp is always ON
1. Ignition OFF, remove the test lamp, disconnect the harness connector at the S79D Window Switch-Driver, Ignition ON.
2. Test for less than 1 V between the control circuit and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
  - If less than 1 V, replace the S79D Window Switch-Driver.
- If the test lamp turns ON and OFF
Test or replace the M74D Window Motor-Driver.