B1077

DTC Troubleshooting: B1077

DTC B1077:

Windshield Wiper Motor (Park) Signal Error

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

1. Turn the ignition switch to ON (II), and the windshield wiper switch ON.

2. Check the windshield wiper operation.

Does the wiper work?

YES -

Go to step 3.

NO -

Go to step 13.

3. Clear the DTC with the HDS.

4. Turn the ignition switch to LOCK (0) and then back to ON (II).

5. Turn the windshield wiper switch ON, and then OFF.

6. Check for DTCs with the HDS.

Is DTC B1077 indicated?

YES -

Go to step 7.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections.�

7. Select BODY ELECTRICAL system select menu, then enter the DATA LIST menu.

8. Check the ON/OFF information of the FR WIPER AS with the HDS.

Is OFF indicated when the motor is stopped, and ON intermittently indicated when the motor runs?

YES -

Faulty MICU, replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal And Installation.�

NO -

Go to step 9.

9. Turn the ignition switch to LOCK (0).

10. Disconnect the windshield wiper motor 5P connector.

11. Disconnect under-dash fuse/relay box connector F (34P).

12. Check for continuity between windshield wiper motor 5P connector terminal No. 4 and under-dash fuse/relay box connector F (34P) terminal No. 32.

Is there continuity?

YES -

Faulty MICU, replace the under-dash fuse/relay box Under-Dash Fuse/Relay Box Removal And Installation.�

NO -

Repair an open or high resistance in the wire. �

13. Turn the ignition switch to LOCK (0).

14. Check the No. 38 (30 A) fuse in the under-dash fuse/relay box.

Is the fuse OK?

YES -

Go to step 15.

NO -

Replace the fuse and recheck the system.�

15. Do the wiper motor test.

Does the wiper motor run normally?

YES -

Go to step 16.

NO -

Replace the windshield wiper motor and recheck.�

16. Disconnect the windshield wiper motor 5P connector.

17. Disconnect under-dash fuse/relay box connector F (34P).

18. Check for continuity between windshield wiper motor 5P connector terminals No. 3 and No. 5 and under-dash fuse/relay box connector F (34P) terminals No. 18 and No. 19 respectively.

Is there continuity?

YES -

Go to step 19.

NO -

Repair an open or high resistance in the wire.�

19. Check for continuity between windshield wiper motor 5P connector terminal No. 2 and body ground.