Honda HR-V Owners & Service Manuals

Honda HR-V: DTC B1281, B1282, B1283, B1284 Front Wiper Position Circuit Malfunctions

Honda HR-V (2015-2021) Service Manual / Accessories & Equipment / Multiplex Integrated Control Unit (Micu) - Diagnostics / DTC B1281, B1282, B1283, B1284 Front Wiper Position Circuit Malfunctions

DTC Troubleshooting: B1281, B1282, B1283, B1284

Multiplex Integrated Control Unit (Micu) - Diagnostics

DTC (MICU)

NOTE : If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks.

1. Wiper/washers system check:

Turn the windshield wiper switch to the OFF position, check the parameter(s) below with the HDS.

Multiplex Integrated Control Unit (Micu) - Diagnostics

Are all data list values correct?

YES

Go to step 4.

NO

Go to step 2.

2. Determine possible failure area (wiper/washer switch, others):

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Disconnect the following connector.

Wiper/washer switch 10P connector

  1. Check the parameter(s) below with the HDS.

Multiplex Integrated Control Unit (Micu) - Diagnostics

Has the data list value changed from ON to OFF?

YES

Replace the wiper/washer switch.

NO

Go to step 3.

3. Shorted wire check (FR WIPER INT&LO SW, FR WIPER HI&LO SW, FR WIPER MIST SW lines):

  1. Turn the vehicle to the OFF (LOCK) mode.
  2. Disconnect the following connector.

Under-dash fuse/relay box connector B (20P)

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

Multiplex Integrated Control Unit (Micu) - Diagnostics

Is there continuity?

YES

Repair a short to ground in the wire.

NO

The FR WIPER INT&LO SW, FR WIPER HI&LO SW, and FR WIPER MIST SW wires are OK. Faulty MICU; replace the under-dash fuse/relay box.

4. Shorted wire check (FR WIPER MIST SW to FR WIPER HI&LO SW, FR WIPER HI&LO SW to FR WIPER INT&LO SW, FR WIPER MIST SW to FR WIPER INT&LO SW lines):

  1. Check the parameter(s) below with the HDS.

When the windshield wiper switch is turned to HI

Multiplex Integrated Control Unit (Micu) - Diagnostics

When the windshield wiper switch is turned to LO

Multiplex Integrated Control Unit (Micu) - Diagnostics

When the windshield wiper switch is turned to INT

Multiplex Integrated Control Unit (Micu) - Diagnostics

When the windshield wiper switch is turned OFF

Multiplex Integrated Control Unit (Micu) - Diagnostics

When the windshield wiper switch is turned to MIST

Multiplex Integrated Control Unit (Micu) - Diagnostics

Multiplex Integrated Control Unit (Micu) - Diagnostics

Are all data list values correct?

YES

The FR WIPER MIST SW to FR WIPER HI&LO SW, FR WIPER HI&LO SW to FR WIPER INT&LO SW, and FR WIPER MIST SW to FR WIPER INT&LO SW wires are OK. Intermittent failure, the system is OK at this time. Check for loose or poor connections.

NO

Repair a short between the wires.

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