OBD Guide
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B25C8

Driver Door Ajar Switch 2 Circuit High

B25C8 is an OBD-II diagnostic trouble code meaning: Driver Door Ajar Switch 2 Circuit High. Common causes: short circuit to ground in the sensor circuit, open circuit in the sensor circuit. Estimated repair cost: $22–56.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • Incorrect operation of interior lighting
  • False door unlock warnings
  • Functions related to door status do not work

Causes

  • Short circuit to ground in the sensor circuit
  • Open circuit in the sensor circuit
  • Door sensor malfunction
  • Wiring Harness Problems
  • Body control module malfunction

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check the sensor for damage
  3. Check wiring harness for damage
  4. Replace sensor if necessary
  5. Check body control module

Related codes

B25C7B25C9

FAQ

What does the B25C8 code mean?

B25C8 is an OBD-II diagnostic trouble code that indicates: Driver Door Ajar Switch 2 Circuit High

What causes a B25C8 error code?

The most common causes of B25C8 include: Short circuit to ground in the sensor circuit; Open circuit in the sensor circuit; Door sensor malfunction; Wiring Harness Problems.

How do I fix a B25C8 diagnostic trouble code?

To fix B25C8: Check the integrity of the sensor circuit. Check the sensor for damage. Check wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B25C8?

Limited driving only, diagnose soon

How much does it cost to fix B25C8?

The estimated repair cost for B25C8 is $22–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat