OBD Guide
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B26F2

Ignition Relay On

B26F2 is an OBD-II diagnostic trouble code meaning: Ignition Relay On. Common causes: faulty ignition relay, damaged wiring harness. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Engine won't start
  • Unstable engine operation
  • Problems with car electrical systems

Causes

  • Faulty ignition relay
  • Damaged wiring harness
  • Poor contact in connectors
  • Computer malfunctions

How to Fix

  1. Check the condition of the ignition relay
  2. Inspect the wiring harness for damage
  3. Check contacts in connectors
  4. Replace the ignition relay if necessary
  5. Check the operation of the computer

Related codes

P0685P0686P0687

FAQ

What does the B26F2 code mean?

B26F2 is an OBD-II diagnostic trouble code that indicates: Ignition Relay On

What causes a B26F2 error code?

The most common causes of B26F2 include: Faulty ignition relay; Damaged wiring harness; Poor contact in connectors; Computer malfunctions.

How do I fix a B26F2 diagnostic trouble code?

To fix B26F2: Check the condition of the ignition relay. Inspect the wiring harness for damage. Check contacts in connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B26F2?

Yes, but get it checked soon

How much does it cost to fix B26F2?

The estimated repair cost for B26F2 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat