B1131

DTC B1131: Front Passenger's Power Window Motor Pulse B Error

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

1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Open and close the front passenger's power window by using the front passenger's power window switch manually.

Does the window motor operate?

YES - Go to step 6.

NO - Test the front passenger's power window motor.

4. Check for DTCs with the HDS.

Is DTC B1131 indicated?

YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections.

5. Select the POWER WINDOWS from the BODY ELECTRICAL system select menu, and enter the DATA LIST.
6. Check the DETECT/NONE information of the front passenger's window motor B-phase pulse signal in the DATA LIST.

Does the information indicator display DETECT while the window is moving, and display NONE when the window is stopped?

YES - Replace the front passenger's power window switch.

NO - Go to step 7.

7. Check for DTCs with the HDS.

Is DTC B1130 also indicated?

YES - Go to step 14.

NO - Go to step 8.

8. Turn the ignition switch to LOCK (0).
9. Disconnect the front passenger's power window switch 37P connector.
10. Disconnect the front passenger's power window motor 6P connector.
11. Check for continuity between the front passenger's power window switch 37P connector No. 28 terminal and the front passenger's power window motor 6P connector No. 3 terminal.






Is there continuity?

YES - Go to step 12.

NO - Repair an open in the wire.

12. Check for continuity between the front passenger's power window motor 6P connector No. 3 terminal and body ground.






Is there continuity?

YES - Repair a short to ground in the wire.

NO - Go to step 13.

13. Test the front passenger's power window motor.

Is the motor OK?

YES - Replace the front passenger's power window switch.

NO - Replace the front passenger's power window motor.

14. Check for continuity between the front passenger's power window switch 37P connector No. 26 and No. 36 terminals and the front passenger's power window motor 6P connector No. 5 and No. 2 terminals respectively.






Is there continuity?

YES - Go to step 15.

NO - Repair an open in the wire.

15. Check for continuity between the front passenger's power window motor 6P connector No. 5 terminal and body ground.






Is there continuity?

YES - Repairs short to ground in the wire.

NO - Replace the front passenger's power window motor.