B1929

B1929-LEFT REAR WINDOW CONTROL CIRCUIT OPEN - LRDM





For a complete wiring diagram REFER to DIAGRAMS/ELECTRICAL .


- When Monitored:
Whenever the Window Motor is operating.

- Set Condition:
The Left Rear Window Driver (Up) circuit does not change from high to low during a window movement command.






Diagnostic Test


1. TEST FOR INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, erase all DTC's.
Try to operate the Left Rear Window up and down several times.
Wait 30 seconds.
With the scan tool, read DTC's.
Does the scan tool display this DTC?

Yes


- Go To 2


No


- The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test


2. WINDOW MOTOR OR CIRCUIT OPEN




Turn the ignition off.
Disconnect the Left Rear Window Motor connector.
Connect a test light between the (Q111) Left Rear Window Driver (Up) circuit and the (Q211) Left Rear Window Driver (Down) circuit.
Turn the ignition on.
Operate the left rear window switch up and down several times while observing the test light.
Does the test light illuminate brightly when the switch is pressed in both directions?

Yes


- Replace the Left Rear Window Motor.
- Perform BODY VERIFICATION TEST - VER 1.Body Verification Test.


No


- Go To 3


3. (Q111) LEFT REAR WINDOW DRIVER (UP) CIRCUIT OPEN




Turn the ignition off.
Disconnect the Left Rear Door Module C1 connector
Measure the resistance of the (Q111) Left Rear Window Driver (Up) circuit between the Left Rear Window Motor harness connector and the Left Rear Door Module C1 harness connector.
Is the resistance below 5.0 ohms?

Yes


- Go To 4


No


- Repair the (Q111) Left Rear Window Driver (Up) circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1.Body Verification Test


4. (Q211) LEFT REAR WINDOW DRIVER (DOWN) CIRCUIT OPEN




Measure the resistance of the (Q211) Left Rear Window Driver (Down) circuit between the Left Rear Window Motor harness connector and the Left Rear Door Module C1 harness connector.
Is the resistance below 5.0 ohms?

Yes


- Replace the Left Rear Door Module.
- Perform the BODY VERIFICATION TEST - VER 1.Body Verification Test


No


- Repair the (Q211) Left Rear Window Driver (Down) circuit for an open.
- Perform the BODY VERIFICATION TEST - VER 1.Body Verification Test