Honda HR-V Owners & Service Manuals

Honda HR-V: DTC B1640 RF1 Antenna Not Connected Or Malfunction

Honda HR-V (2015-2021) Service Manual / Accessories & Equipment / Keyless Access Control Unit - Diagnostics / DTC B1640 RF1 Antenna Not Connected Or Malfunction

Keyless Access Control Unit - Diagnostics

DTC (Keyless Access 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,.

1. Problem verification:

  1. Clear the DTCs with the HDS.

Clear DTCs

  1. Push the door outer handle door lock button to lock the door.
  2. Touch the door outer handle touch sensor to unlock the door.
  3. Check for DTCs with the HDS.

Keyless Access Control Unit - Diagnostics

Is DTC B1640 indicated?

YES

Replace the keyless access control unit.

NO

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

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