All codes/B0105

B0105

Front Crash Sensor Right Communication Lost

Moderate severity

Communication with the right front crash sensor has been lost.

Communication with the right front crash sensor has been lost.

Common causes

  • Open bus wiring to sensor

    One of the most commonly reported causes for this code — check this first.

    high

    Typical part cost: $130-660

  • Gateway module routing CAN messages incorrectly

    Less common, but worth ruling out after the more likely causes.

    low

    Typical part cost: $130-660

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First things to check

  1. 1Confirm the code with a scan tool and check for additional related codes.
  2. 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does B0105 mean?

B0105 means "Front Crash Sensor Right Communication Lost". It is a generic OBD-II code that points to a fault in the body.

What are the most common causes of B0105?

open bus wiring to sensor; gateway module routing can messages incorrectly; can terminating resistor (120 ω) drifted out of spec — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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