Right Rear Window Motor Inoperative - Pt27
*RIGHT REAR WINDOW MOTOR INOPERATIVE - PT27
For a complete wiring diagram Consult Diagrams/Electrical
Theory of Operation
If this circuit is shorted to ground, it is very likely that the module will be damaged also. After any repair, check for proper operation. If the system is still inoperative, replace the Window Regulator Module.
Diagnostic Test
1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTC's
Try to operate the Rear Window up and down several times.
Wait 30 seconds.
With the scan tool, read DTC's.
Are there any power window related DTC's?
No
- Go To 2
Yes
- Refer to the symptom list for problems related to Power Windows and perform the appropriate test.
Diagnostic Test
2. MODULE OPEN
Turn the ignition off.
Remove the right front door trim panel
Disconnect the Right Window Regulator Module connector.
Connect a jumper wire between the Fused B+ circuit and the (Q24) Right Rear Window Driver Down circuit in the connector.
Connect a second jumper wire to the (Q14) Right Rear Window Driver Up circuit and momentarily touch it to Ground (the motor should begin to lower the window).
Reverse the jumper wires momentarily to drive the motor Up.
Did the window motor operate properly?
Yes
- Replace the Right Window Regulator Module.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Go To 3
3. (Q14) RIGHT REAR WINDOW DRIVER UP CIRCUIT SHORT TO GROUND
Disconnect the Right Rear Window Motor connector.
Measure the resistance between Ground and the (Q14) Right Rear Window Driver Up circuit.
Is the resistance below 1,000.0 ohms?
Yes
- Repair the (Q14) Right Rear Window Driver Up circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Go To 4
4. (Q24) RIGHT REAR WINDOW DRIVER DOWN CIRCUIT SHORT TO GROUND
Measure the resistance between Ground and the (Q24) Right Rear Window Driver Down circuit.
Is the resistance below 1,000.0 ohms?
Yes
- Repair the (Q24) Right Rear Window Driver Down circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Go To 5
5. (Q24) RIGHT REAR WINDOW DRIVER DOWN CIRCUIT SHORT TO THE (Q14) RIGHT REAR WINDOW DRIVER UP CIRCUIT
Measure the resistance between the (Q14) Right Rear Window Driver Up circuit and the (Q24) Right Rear Window Driver Down circuit in the motor connector.
Is the resistance below 1,000.0 ohms?
Yes
- Repair the (Q24) Right Rear Window Driver Down circuit for a short to the (Q14) Right Rear Window Driver Up circuit.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
No
- Go To 6
6. (Q14) RIGHT REAR WINDOW DRIVER UP CIRCUIT OPEN
Measure the resistance of the (Q14) Right Rear Window Driver Up circuit between the Right Window Regulator Module connector and the Right Rear Window Motor connector.
Is the resistance below 2.0 ohms?
No
- Repair the (Q14) Right Rear Window Driver Up circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
Yes
- Go To 7
7. (Q24) RIGHT REAR WINDOW DRIVER DOWN CIRCUIT OPEN.
Measure the resistance of the (Q24) Right Rear Window Driver Down circuit between the Right Window Regulator Module connector and the Right Rear Window Motor connector.
Is the resistance below 2.0 ohms?
Yes
- Replace the Window Motor (Regulator Module Assembly).
- Perform BODY VERIFICATION TEST - VER 1Body Verification Test
No
- Repair the (Q24) Right Rear Window Driver Down circuit for an open.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test