DTC code

B1646: Driver Door LF Antenna Circuit Open

Vehicle-specific published guides for this diagnostic trouble code.

Driver Door LF Antenna Circuit Open

B1646 may mean the keyless access control unit is seeing the driver door low frequency antenna circuit as open.

Article vehicle: 2010-2017 Honda Accord 2.4 Gas

B1646 may indicate an open condition in the driver's door low-frequency antenna circuit used by the keyless access and one-push start system.

Article vehicle: 2010-2015 Honda Civic 1.8 Gas

B1646 may mean the keyless access control unit is seeing a possible open circuit in the driver's door low-frequency antenna path.

Article vehicle: 2010-2016 Honda Cr V 2.4 Gas

B1646 may mean the body control module is detecting the driver's door low-frequency antenna circuit as open or disconnected.

Article vehicle: 2017-2025 Honda Cr V 1.5TurboGas