OBD Guide
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B2537

Rear Fog Lamps Circuit Low

B2537 is an OBD-II diagnostic trouble code meaning: Rear Fog Lamps Circuit Low. Common causes: burnt out fog light bulb, wiring harness damage. Estimated repair cost: $11–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Rear fog lights not working
  • Dashboard warning
  • Flashing or dim fog lights

Causes

  • Burnt out fog light bulb
  • Wiring harness damage
  • Faulty relay
  • Corrosion or poor contact in connectors
  • Problems with the control unit

How to Fix

  1. Check the condition of the rear fog lamps
  2. Inspect the wiring harness for damage
  3. Check the contacts in the connectors and clean them from corrosion
  4. Test the fog light relay
  5. Check the voltage in the circuit using a multimeter
  6. If necessary, replace faulty components

Related codes

B2536B2538

FAQ

What does the B2537 code mean?

B2537 is an OBD-II diagnostic trouble code that indicates: Rear Fog Lamps Circuit Low

What causes a B2537 error code?

The most common causes of B2537 include: Burnt out fog light bulb; Wiring harness damage; Faulty relay; Corrosion or poor contact in connectors.

How do I fix a B2537 diagnostic trouble code?

To fix B2537: Check the condition of the rear fog lamps. Inspect the wiring harness for damage. Check the contacts in the connectors and clean them from corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2537?

Limited driving only, diagnose soon

How much does it cost to fix B2537?

The estimated repair cost for B2537 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat