OBD Guide
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B25A3

Front Left Door Handle Sensor

B25A3 is an OBD-II diagnostic trouble code meaning: Front Left Door Handle Sensor. Common causes: door handle sensor damage, corrosion of contacts or connectors. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unlocking does not work when touching the door handle
  • Periodic malfunctions of the keyless entry system
  • The malfunction indicator on the dashboard lights up

Causes

  • Door handle sensor damage
  • Corrosion of contacts or connectors
  • Open or short circuit in wiring harness
  • Problems with the passive access module

How to Fix

  1. Check the integrity of the sensor and its fastening
  2. Inspect connectors and contacts for corrosion
  3. Diagnose the wiring harness for an open or short circuit
  4. Replace the door handle sensor if necessary
  5. Reset the error and check the system operation

Related codes

B25A4B25A5B25A6

FAQ

What does the B25A3 code mean?

B25A3 is an OBD-II diagnostic trouble code that indicates: Front Left Door Handle Sensor

What causes a B25A3 error code?

The most common causes of B25A3 include: Door handle sensor damage; Corrosion of contacts or connectors; Open or short circuit in wiring harness; Problems with the passive access module.

How do I fix a B25A3 diagnostic trouble code?

To fix B25A3: Check the integrity of the sensor and its fastening. Inspect connectors and contacts for corrosion. Diagnose the wiring harness for an open or short circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B25A3?

Limited driving only, diagnose soon

How much does it cost to fix B25A3?

The estimated repair cost for B25A3 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat