Honda HR-V Owners & Service Manuals

Honda HR-V: DTC B12D0, B12D1, B12D2

NOTE: Refer to the DTC code shown on the display, and then inspect the connectors and terminals based on the instructions in the table below.

Keyless Access Power Control Unit - Diagnostics

DTC (Power Control Unit)

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, or.
  • Make sure aftermarket accessories are not installed.

1. Problem verification:

  1. Clear the DTCs with the HDS.

Clear DTCs

  1. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.
  2. Wait 10 seconds.
  3. Turn the vehicle to the OFF (LOCK) mode.
  4. Wait 5 seconds.
  5. Check for DTCs with the HDS.

Keyless Access Power Control Unit - Diagnostics

Are any DTCs indicated?

YES

Go to step 2.

NO

Intermittent failure, the system is OK at this time.

2. Determine possible failure area (relay circuit ON problem, relay circuit OFF problem):

  1. Select KEYLESS ACCESS CONTROL from the ONE-PUSH START system select menu with the HDS, and enter DATA LIST.

Keyless Access Power Control Unit - Diagnostics

  1. Check the parameter(s) in the table with the HDS.

Is there battery voltage?

YES

Go to step 3.

NO

Go to step 4.

3. Under-dash subrelay box test (relay circuit ON problem):

Do the under-dash subrelay box test (each relay circuit).

Is relay circuit OK?

YES

Repair a short to power in the wire between the keyless access control unit and the under-dash subrelay box.

NO

Faulty relay circuit, replace the under-dash subrelay box.

4. Under-dash subrelay box test (relay circuit OFF problem):

Do the under-dash subrelay box test (each relay circuit).

Is relay circuit OK?

YES

Repair an open or high resistance in the wire between the keyless access control unit and the under-dash subrelay box.

NO

Faulty relay circuit, replace the under-dash subrelay box.

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