OBD Guide
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B2526

Left Rear Backup Lamp Circuit Short To Battery

B2526 is an OBD-II diagnostic trouble code meaning: Left Rear Backup Lamp Circuit Short To Battery. Common causes: damage to wire insulation, short circuit in wiring harness. Estimated repair cost: $11–56.

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

Symptoms

  • Constantly lit reverse lamp
  • Lamp burnout
  • Battery low
  • Dashboard warning

Causes

  • Damage to wire insulation
  • Short circuit in wiring harness
  • Relay fault
  • Problem with the lighting control unit
  • Contact corrosion

How to Fix

  1. Check the condition of the wires and connectors in the reverse lamp circuit
  2. Check lamp performance
  3. Check relays and fuses
  4. Scan the control unit for other errors
  5. Repair or replace damaged sections of the chain

Related codes

B2525B2527

FAQ

What does the B2526 code mean?

B2526 is an OBD-II diagnostic trouble code that indicates: Left Rear Backup Lamp Circuit Short To Battery

What causes a B2526 error code?

The most common causes of B2526 include: Damage to wire insulation; Short circuit in wiring harness; Relay fault; Problem with the lighting control unit.

How do I fix a B2526 diagnostic trouble code?

To fix B2526: Check the condition of the wires and connectors in the reverse lamp circuit. Check lamp performance. Check relays and fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2526?

Limited driving only, diagnose soon

How much does it cost to fix B2526?

The estimated repair cost for B2526 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat