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B1645 Honda Code - Driver Door LF Antenna Circuit Short

- Code Popularity: 1,737 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1645 Honda?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Driver Door Low Frequency (LF) Antenna
  • Driver Door Low Frequency (LF) Antenna harness is open or shorted
  • Driver Door Low Frequency (LF) Antenna circuit poor electrical connection
  • Faulty Keyless Access Control Unit
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How to Fix the DTC B1645 Honda?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1645 Honda code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B1645 Honda Description

The remote is equipped with a keyless transmitter, and all doors can be locked and unlocked by a lock/unlock button operation, even from a remote distance from the vehicle. When the remote lock button or the remote unlock button is pressed, the keyless transmitter sends the applicable switch signal to the keyless access control unit. After receiving the authentication at the keyless access control unit, then the door lock signals are sent to MICU through B-CAN.
The front interior, the middle interior, and the rear interior Low Frequency (LF) antennas send the signals to the remote of inside the vehicle. The driver's door outer handle, the front passenger's door outer handle, and the rear bumper LF antennas send the signals to the remote of outside the vehicle.

OBDII Code B1645 Honda - Driver Door LF Antenna Circuit Short - AutoCodes.com
B1645 Honda Code - Driver Door LF Antenna Circuit Short

Need More Information on the Code?

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Code B1645 Honda comments

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