OBD Guide
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B2531

Right Rear Backup Lamp Circuit Failure

B2531 is an OBD-II diagnostic trouble code meaning: Right Rear Backup Lamp Circuit Failure. Common causes: burnt out lamp, open or short circuit in wiring. Estimated repair cost: $6–33.

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

Symptoms

  • No light from the right rear reverse lamp
  • Dashboard warning
  • The lamp does not turn on when reverse gear is engaged

Causes

  • Burnt out lamp
  • Open or short circuit in wiring
  • Faulty relay or fuse
  • Wiring Harness Problems
  • Control unit malfunction

How to Fix

  1. Check the lamp condition
  2. Check fuses and relays
  3. Inspect the wiring for damage
  4. Check connections in wiring harness
  5. Scan the control unit for errors

Related codes

B2530B2532

FAQ

What does the B2531 code mean?

B2531 is an OBD-II diagnostic trouble code that indicates: Right Rear Backup Lamp Circuit Failure

What causes a B2531 error code?

The most common causes of B2531 include: Burnt out lamp; Open or short circuit in wiring; Faulty relay or fuse; Wiring Harness Problems.

How do I fix a B2531 diagnostic trouble code?

To fix B2531: Check the lamp condition. Check fuses and relays. Inspect the wiring for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2531?

Limited driving only, diagnose soon

How much does it cost to fix B2531?

The estimated repair cost for B2531 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat