B1126

DTC B1125: Driver's Power Window Motor A Pulse Error

DTC B1126: Driver's Power Window Motor B Pulse Error

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

1. Turn the ignition switch to ON (II).
2. Open and close the driver's power window by using the driver's switch manually.
3. Select the POWER WINDOWS from the ELECTRICAL SYSTEM SELECT menu and enter DATA LIST.
4. While the power window is moving, check the DETECT/NONE information of the DRIVER'S POWER WINDOW MOTOR PULSE A or B in the DATA LIST.

Does the information indicator display DETECT?

YES - Replace the door multiplex control unit.

NO - Go to step 5.

5. Perform the driver's power window motor pulser test. Driver's Power Window Motor Test

Is it OK?

YES - Go to step 6.

NO - Replace the driver's power window motor.

6. Disconnect the power window master switch 23P connector and the driver's power window motor 6P connector.
7. Check for continuity between the power window master switch 23P connector and driver's power window motor 6P connector as follows.






Is there continuity?

YES - Go to step 8.

NO - Repair open in the wire.

8. Check for continuity between the power window master switch 23P connector No. 4, No. 6, and No. 17 terminals and body ground individually.






Is there continuity?

YES - Repair short in the wire.

NO - Substitute a known-good door multiplex control unit, and recheck. If DTC is gone, the original door multiplex control unit is faulty; replace it. If the DTC is still indicated, replace the driver's power window motor.