Driver Window Inoperative

Possible Causes

• DRIVER DOOR MODULE OPEN SWITCH
• DRIVER DOOR MODULE OUTPUT OPEN
• MOTOR CIRCUIT CHECK
• DRIVER WINDOW DRIVER UP WIRE OPEN
• DRIVER WINDOW DRIVER UP SHORTED TO GROUND
• DRIVER WINDOW DRIVER UP SHORTED TO VOLTAGE
• DRIVER WINDOW DRIVER DOWN WIRE OPEN
• DRIVER WINDOW DRIVER DOWN SHORTED TO GROUND
• DRIVER WINDOW DRIVER DOWN SHORTED TO VOLTAGE
• MOTOR DEFECTIVE OPEN
• MOTOR DEFECTIVE SHORT TO GROUND

1. Connect the DRBIII(R) and select: BODY, DOOR MODULES, ACTUATORS. Using the DRBIII(R), actuate the DRV F WIN UP RLY and then the DRV F WIN DN RLY. Did the window operate up and down? If yes, replace the Driver Door Module (switch input open). Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS. If no, go to next step.
2. Disconnect the Driver Door Module C1 connector. Keep the window area clear as the window should move up and down in this test. Connect a jumper wire from the Driver Window Driver Down terminal to the ground terminal. Connect a jumper wire from the Driver Window Driver Up terminal and momentarily connect it to the Fused B (+) terminal. Reverse the jumper wires to run the motor in the opposite direction. Did the window motor operate up and down? If yes, replace the Driver Door Module (output open). Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS. If no, go to next step.
3. Disconnect the Driver Door Module C1 connector. Turn ignition off. Measure and record the total resistance of the motor circuit between the Driver Window Driver Up circuit and the Driver Window Driver Down circuit in the DDM C1 connector (should be under 5 ohms). Measure and record the resistance of the Driver Window Driver Down circuit to ground in the DDM C1 connector (should be infinite). Turn ignition on. Measure and record the voltage of the Driver Window Driver Down circuit to ground in the DDM C1 connector (should be zero). What were your readings?
   • Total resistance more than 5 ohms, go to next step.
   • Resistance to ground less than 1000 ohms, go to step  7 .
   • Voltage more than 0.02 volts, go to step  10 .
   • None of the above. Check and repair any reasons for the window regulator to bind. If the mechanism is okay, replace the power window motor. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.
4. Disconnect the driver door module C1 connector. Disconnect the driver power window motor connector. Measure the resistance of the Driver Window Driver Up circuit between the DDM. connector and the window motor connector. Is the resistance less than 5 ohms? If yes, go to next step. If no, repair the Driver Window Driver up wire for an open. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.
5. Disconnect the driver door module C1 connector. Disconnect the driver power window motor connector. Measure the resistance of the Driver Window Driver Down circuit between the DDM connector and the window motor connector. Is the resistance less than 5 ohms? If yes, go to next step. If no, repair the Driver Window Driver down wire for an open. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.
6. If there are no possible causes remaining, replace the power window motor. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.
7. Disconnect the driver door module C1 connector. Disconnect the driver power window motor connector. Measure the resistance of the Driver Window Driver Up circuit to ground. Is the resistance less than 100 ohms? If yes, repair the Driver Window Driver up wire for a short to ground. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS. If no, go to next step.
8. Disconnect the driver door module C1 connector. Disconnect the driver power window motor connector. Measure the resistance of the Driver Window Driver Down circuit to ground. Is the resistance less than 100 ohms? If yes, repair the Driver Window Driver Down wire for a short to ground. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS. If no, go to next step.
9. If there are no possible causes remaining, replace the power window motor (internal short). Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.
10. Disconnect the driver door module C1 connector. Disconnect the driver power window motor connector. Measure the voltage of the Driver Window Driver Up circuit to ground. Is there any voltage on the Driver Window Driver Up wire? If yes, repair the Driver Window Driver Up wire for a short to voltage. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS. If no, go to next step.
11. Disconnect the driver door module C1 connector. Disconnect the driver power window motor connector. Measure the voltage of the Driver Window Driver Down circuit to ground. Is there any voltage on the Driver Window Driver Down wire? If yes, repair the Driver Window Driver Down wire for a short to voltage. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS. If no, test is complete.