OBD Guide
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B2124

Door Passenger Reset Switch Stuck Failure

B2124 is an OBD-II diagnostic trouble code meaning: Door Passenger Reset Switch Stuck Failure. Common causes: mechanical sticking of the button, contact corrosion. Estimated repair cost: $6–33.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Inoperative reset button
  • Incorrect operation of the window regulator
  • Error message on the dashboard

Causes

  • Mechanical sticking of the button
  • Contact corrosion
  • Ingress of moisture or dirt
  • Wiring Harness Problems

How to Fix

  1. Check the physical condition of the button
  2. Clear button contacts
  3. Check the integrity of the wiring harness
  4. Replace the button if necessary

Related codes

B2121B2122B2123

FAQ

What does the B2124 code mean?

B2124 is an OBD-II diagnostic trouble code that indicates: Door Passenger Reset Switch Stuck Failure

What causes a B2124 error code?

The most common causes of B2124 include: Mechanical sticking of the button; Contact corrosion; Ingress of moisture or dirt; Wiring Harness Problems.

How do I fix a B2124 diagnostic trouble code?

To fix B2124: Check the physical condition of the button. Clear button contacts. Check the integrity of the wiring harness. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2124?

Limited driving only, diagnose soon

How much does it cost to fix B2124?

The estimated repair cost for B2124 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat