OBD Guide
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B2615

Passenger Compartment Dimming 2 Circuit

B2615 is an OBD-II diagnostic trouble code meaning: Passenger Compartment Dimming 2 Circuit. Common causes: open or short circuit in wiring harness, backlight control module malfunction. Estimated repair cost: $22–111.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Backlight brightness adjustment does not work
  • Dashboard light does not turn on
  • Blinking or unstable backlight operation

Causes

  • Open or short circuit in wiring harness
  • Backlight control module malfunction
  • Problems with the brightness switch
  • Body Control Module (BCM) Malfunction
  • Poor contact in connectors

How to Fix

  1. Check the fuses associated with the backlight
  2. Inspect the wiring harness for damage
  3. Check the operation of the brightness switch
  4. Scan the BCM for errors
  5. If necessary, replace the backlight control module

Related codes

B2614B2616U0155

FAQ

What does the B2615 code mean?

B2615 is an OBD-II diagnostic trouble code that indicates: Passenger Compartment Dimming 2 Circuit

What causes a B2615 error code?

The most common causes of B2615 include: Open or short circuit in wiring harness; Backlight control module malfunction; Problems with the brightness switch; Body Control Module (BCM) Malfunction.

How do I fix a B2615 diagnostic trouble code?

To fix B2615: Check the fuses associated with the backlight. Inspect the wiring harness for damage. Check the operation of the brightness switch. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2615?

Limited driving only, diagnose soon

How much does it cost to fix B2615?

The estimated repair cost for B2615 is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat