OBD Guide
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B2624

Display Dimming Signal Circuit

B2624 is an OBD-II diagnostic trouble code meaning: Display Dimming Signal Circuit. Common causes: open or short circuit in wiring harness, light sensor malfunction. Estimated repair cost: $33–89.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • The display does not change brightness
  • The display is too dim or too bright
  • Display blinking or flickering

Causes

  • Open or short circuit in wiring harness
  • Light sensor malfunction
  • Problems with the brightness control knob
  • Malfunction of the lighting control unit

How to Fix

  1. Check wiring harness for damage
  2. Check light sensor
  3. Check the brightness control knob
  4. Check the lighting control unit

Related codes

B2625B2626

FAQ

What does the B2624 code mean?

B2624 is an OBD-II diagnostic trouble code that indicates: Display Dimming Signal Circuit

What causes a B2624 error code?

The most common causes of B2624 include: Open or short circuit in wiring harness; Light sensor malfunction; Problems with the brightness control knob; Malfunction of the lighting control unit.

How do I fix a B2624 diagnostic trouble code?

To fix B2624: Check wiring harness for damage. Check light sensor. Check the brightness control knob. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2624?

Limited driving only, diagnose soon

How much does it cost to fix B2624?

The estimated repair cost for B2624 is $33–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat