DTC B1077

DTC B1077  : Windshield wiper motor (Park) signal error

DTC (MICU)

NOTE: 

• If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .
• Before troubleshooting, make sure the fuses associated with the system is OK.

1. Determine possible failure area (windshield wiper motor and its drive circuit, FR WIPER AS line)

   -1. Clear the DTCs with the HDS.

   Clear DTCs

   -2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

   -3. Turn the windshield wiper switch to LOW or HIGH for 15 seconds or more, then turn the switch OFF.

   Does the wiper motor work?

   YES 

   Go to step 2.

   NO 

   Go to step  5.

2. Problem verification (DTC)

   -1. Check for DTCs with the HDS.

   DTC Description	DTC
   B1077 Windshield wiper motor (Park) signal error

   Is DTC B1077 indicated?

   YES 

   Go to step 3.

   NO 

   Intermittent failure, the system is OK at this time.

3. Windshield wiper motor check (AS signal)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Do the windshield wiper motor test .

   Does the wiper motor run and does it pulse normally?

   YES 

   Go to step 4.

   NO 

   Replace the windshield wiper motor .

4. Open or shorted wire check (FR WIPER AS line)

   -1. Disconnect the following connectors.

   Windshield wiper motor 5P connector

   Under-dash fuse/relay box connector E (36P)

   -2. Connect terminals A and B with a jumper wire.

   Terminal A	Windshield wiper motor 5P connector (female terminals) No. 3:
   Terminal B	Body ground

   Courtesy of HONDA, U.S.A., INC.

   -3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Windshield wiper motor 5P connector: disconnected Under-dash fuse/relay box connector E (36P): disconnected Windshield wiper motor 5P connector No. 3: jumped to body ground
   Test point 1	Under-dash fuse/relay box connector E (36P) No. 28
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair a short to ground in the wire.

   NO 

   Repair an open or high resistance in the wire.

5. Open wire check (+B WIP MTR MAIN line)

   -1. Disconnect the following connector.

   Relay circuit board connector B (16P)

   -2. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Relay circuit board connector B (16P): disconnected
   Test point 1	Relay circuit board connector B (16P) (female terminals) No. 12:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there battery voltage?

   YES 

   The +B WIP MTR MAIN wire is OK. Go to step 6.

   NO 

   Repair an open or high resistance in the wire.

6. Open wire check (IG1 WIPER line)

   -1. Turn the vehicle to the ON mode.

   -2. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Relay circuit board connector B (16P): disconnected
   Test point 1	Relay circuit board connector B (16P) (female terminals) No. 7:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there battery voltage?

   YES 

   The IG1 WIPER wire is OK. Go to step 7.

   NO 

   Repair an open or high resistance in the wire.

7. Open wire check (GND line)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Relay circuit board connector B (16P): disconnected
   Test point 1	Relay circuit board connector B (16P) (female terminals) No. 15:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   GND wire is OK. Go to step 8.

   NO 

   Repair an open or high resistance in the ground wire or poor ground (G204).

8. Relay circuit board check

   -1. Test the relay circuit board .

   Is the relay circuit board OK?

   YES 

   Go to step 9.

   NO 

   Replace the relay circuit board .

9. Open wire check (WIPER INT RLY CL- line)

   -1. Disconnect the following connector.

   Under-dash fuse/relay box connector E (36P)

   -2. Connect terminals A and B with a jumper wire.

   Terminal A	Relay circuit board connector B (16P) (female terminals) No. 16:
   Terminal B	Body ground

   Courtesy of HONDA, U.S.A., INC.

   -3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Under-dash fuse/relay box connector E (36P): disconnected Relay circuit board connector B (16P): disconnected Relay circuit board connector B (16P) No. 16: jumped to body ground
   Test point 1	Under-dash fuse/relay box connector E (36P) No. 16
   Test point 2	Body ground

   Is there continuity?

   YES 

   The WIPER INT RLY CL- wire is OK. Go to step 10.

   NO 

   Repair an open or high resistance in the wire.

10. Open wire check (WIPER HI/LO RLY CL- line)

    -1. Connect terminals A and B with a jumper wire.

    Terminal A	Relay circuit board connector B (16P) (female terminals) No. 6:
    Terminal B	Body ground

    Courtesy of HONDA, U.S.A., INC.

    -2. Check for continuity between test points 1 and 2.

    Test condition	Vehicle OFF (LOCK) mode Under-dash fuse/relay box connector E (36P): disconnected Relay circuit board connector B (16P): disconnected Relay circuit board connector B (16P) No. 6: jumped to body ground
    Test point 1	Under-dash fuse/relay box connector E (36P) No. 15
    Test point 2	Body ground

    Is there continuity?

    YES 

    The WIPER HI/LO RLY CL- wire is OK. Go to step 11.

    NO 

    Repair an open or high resistance in the wire.

11. Open wire check (FR WIPER(HI) line)

    -1. Disconnect the following connector.

    Windshield wiper motor 5P connector

    -2. Check for continuity between test points 1 and 2.

    Test condition	Vehicle OFF (LOCK) mode Under-dash fuse/relay box connector E (36P): disconnected Relay circuit board connector B (16P): disconnected Windshield wiper motor 5P connector: disconnected
    Test point 1	Relay circuit board connector B (16P) (female terminals) No. 14:
    Test point 2	Windshield wiper motor 5P connector (female terminals) No. 4:

    Courtesy of HONDA, U.S.A., INC.

    Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The FR WIPER(HI) wire is OK. Go to step 12.

    NO 

    Repair an open or high resistance in the wire.

12. Open wire check (FR WIPER(LO) line)

    -1. Check for continuity between test points 1 and 2.

    Test condition	Vehicle OFF (LOCK) mode Under-dash fuse/relay box connector E (36P): disconnected Relay circuit board connector B (16P): disconnected Windshield wiper motor 5P connector: disconnected
    Test point 1	Relay circuit board connector B (16P) (female terminals) No. 5:
    Test point 2	Windshield wiper motor 5P connector (female terminals) No. 1:

    Courtesy of HONDA, U.S.A., INC.

    Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    The FR WIPER(LO) wire is OK. Go to step 13.

    NO 

    Repair an open or high resistance in the wire.

13. Windshield wiper motor check

    -1. Do the windshield wiper motor test .

    Does the wiper motor run and does it pulse normally?

    YES 

    Faulty MICU; replace the under-dash fuse/relay box .

    NO 

    Replace the windshield wiper motor .