OBD Guide
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B259C

Rear Left Door Handle Sense

B259C is an OBD-II diagnostic trouble code meaning: Rear Left Door Handle Sense. Common causes: broken or damaged sensor wiring harness, malfunction of the door handle sensor itself. Estimated repair cost: $33–89.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • The passive access system from the rear left door does not work
  • Central locking malfunction
  • The malfunction indicator on the dashboard lights up

Causes

  • Broken or damaged sensor wiring harness
  • Malfunction of the door handle sensor itself
  • Short circuit in the circuit
  • Problems with the door control unit

How to Fix

  1. Check wiring harness for damage
  2. Check the power supply and ground of the sensor
  3. Test the door handle sensor
  4. Replace sensor if necessary
  5. Reset the error with an OBD-II scanner

Related codes

B259DB259BB259E

FAQ

What does the B259C code mean?

B259C is an OBD-II diagnostic trouble code that indicates: Rear Left Door Handle Sense

What causes a B259C error code?

The most common causes of B259C include: Broken or damaged sensor wiring harness; Malfunction of the door handle sensor itself; Short circuit in the circuit; Problems with the door control unit.

How do I fix a B259C diagnostic trouble code?

To fix B259C: Check wiring harness for damage. Check the power supply and ground of the sensor. Test the door handle sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B259C?

Yes, but get it checked soon

How much does it cost to fix B259C?

The estimated repair cost for B259C is $33–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat