B1077
DTC B1077: Windshield Wiper (As) Signal Error1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF and then back ON (II).
3. Turn the wiper switch to INT, LOW, then HIGH for at least 2 seconds each.
4. Check for DTCs using the HDS.
Is DTC B1077 indicated?
YES - Go to step 5.
NO - Intermittent failure. The windshield wiper system is OK at this time. Check pinfits and connections.
5. Turn the ignition switch ON (II).
6. Select WINDSHIELD WIPERS from the HDS and enter the DATA LIST.
7. Turn the windshield wiper switch ON.
8. Check the ON/OFF information of the Windshield Wiper Switch (INTERMITTENT), Windshield Wiper Switch (LOW), and Windshield Wiper Switch (HIGH) in the DATA LIST at each wiper switch position.
Is the information indicator ON at each switch position?
YES - Go to step 9.
NO - Go to step 17.
9. Select FUNCTIONAL. TEST from the TEST MODE MENU, and operate the windshield wiper motor with Windshield Wiper Switch (LOW) and Windshield Wiper Switch (HIGH).
Does the windshield wiper motor run?
YES - Go to step 10.
NO - Go to step 18.
10. Turn the windshield wiper switch OFF, and stop the wiper arms at the park position. (If the wiper arms do not stop at the park position, turn the ignition switch OFF and stop them at the park position correctly.)
11. Turn the ignition switch ON (II).
Do the wipers begin to run as soon as the ignition switch is cycled ON?
YES - Go to step 16.
NO - Go to step 12.
12. Check the ON/OFF information of the Windshield Wiper Motor PARK Switch in the DATA LIST.
Is the information indicator OFF?
YES - Go to step 13.
NO - Faulty relay control module; replace the under-hood fuse/relay box.
13. Turn the ignition switch ON (II), and turn the windshield wiper switch ON at low speed.
14. Check the ON/OFF information of the Windshield Wiper Motor PARK Switch in the DATA LIST.
Does the DATA LIST information indicate ON and OFF alternately as the wipers pass the PARK position?
YES - Intermittent failure, the windshield wiper system is OK at this time. Check pinfits and connections.
NO - Go to step 15.
15. Check for continuity between the No.4 terminal of the windshield wiper motor 5P connector and No.5 terminal of the under-hood fuse/relay box 5P connector J.
Is there continuity?
YES - Faulty windshield wiper motor; replace it
NO - Repair an open in the WHT wire.
16. Check for continuity between the No.5 terminal of the under-hood fuse/relay box 5P connector J and body ground.
17. Check the No.7 (10 A), No.11 (30 A) and No.21 (7.5 A) fuses in the under-dash fuse/relay box.
Are the fuses OK?
YES - Faulty relay control module; replace the under-hood fuse/relay box.
NO - Replace the blown fuse and recheck the system.
18. Turn the ignition switch OFF and check the No.11 (30 A) fuse in the under-dash fuse/relay box.
Is the fuse OK?
YES - Go to step 19.
NO - Replace the blown fuse and recheck the system.
19. Turn the ignition switch ON (II).
20. Check for voltage between the No.2 terminal of the windshield wiper motor 5P connector and body ground.
Is there battery voltage ?
YES - Go to step 21.
NO - Repair an open in the GRN wire.
21. Check for continuity between the No.Sand No.5 terminals of the windshield wiper motor 5P connector and the No.2 and No.4 terminals of the under-hood fuse/relay box 5P connector J.
Is there continuity?
YES - Repair an open in the BLU or YEL wire.
NO - Go to step 22.
22. Perform the wiper motor test.
Does the wiper motor operate correctly?
YES - Faulty relay control module; replace the under-hood fuse/relay box.
NO - �Replace the windshield wiper motor.