OBD Guide

P26A2

Exhaust Aftertreatment Glow Plug Circuit High

P26A2 is an OBD-II diagnostic trouble code meaning: Exhaust Aftertreatment Glow Plug Circuit High. Common causes: glow plug malfunction, broken or damaged wiring. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Deterioration of the exhaust gas cleaning system
  • Possible problems starting the engine in cold weather
  • Increased fuel consumption
  • Reduced engine power

Causes

  • Glow plug malfunction
  • Broken or damaged wiring
  • Poor contact in connectors
  • Faulty glow plug relay
  • Problems with the engine control unit

How to Fix

  1. Check glow plug resistance
  2. Inspect wiring and connectors for damage
  3. Check the relays and fuses of the glow plug circuit
  4. If necessary, replace the glow plug
  5. Reset the error code and check if it returns

Related codes

Error P26A2 by Vehicle Brand

FAQ

What does the P26A2 code mean?

P26A2 is an OBD-II diagnostic trouble code that indicates: Exhaust Aftertreatment Glow Plug Circuit High

What causes a P26A2 error code?

The most common causes of P26A2 include: Glow plug malfunction; Broken or damaged wiring; Poor contact in connectors; Faulty glow plug relay.

How do I fix a P26A2 diagnostic trouble code?

To fix P26A2: Check glow plug resistance. Inspect wiring and connectors for damage. Check the relays and fuses of the glow plug circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P26A2?

Yes, but get it checked soon

How much does it cost to fix P26A2?

The estimated repair cost for P26A2 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat