AutoCodes – Generic – P26A2

P26A2 Code - Exhaust Aftertreatment Glow Plug Circuit High

Quick Answer

The Powertrain Control Module (PCM) monitors the Exhaust Aftertreatment Glow Plug Control Circuit. Common causes include Faulty Exhaust Aftertreatment Glow Plug, Exhaust Aftertreatment Glow Plug harness is open or shorted, Exhaust Aftertreatment Glow Plug circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P26A2 indicates Exhaust Aftertreatment Glow Plug Circuit High.
Common causes: Common causes include Faulty Exhaust Aftertreatment Glow Plug, Exhaust Aftertreatment Glow Plug harness is open or shorted, Exhaust Aftertreatment Glow Plug circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 28,936

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P26A2 Description

The Powertrain Control Module (PCM) monitors the Exhaust Aftertreatment Glow Plug Control Circuit. The PCM sets the OBDII code when the Exhaust Aftertreatment Glow Plug Control Circuit is out of factory specifications.

OBDII Code P26A2 - Exhaust Aftertreatment Glow Plug Circuit High - AutoCodes.com — P26A2 Code - Exhaust Aftertreatment Glow Plug Circuit High

What does this mean?

What are the Possible Causes of the DTC P26A2?

Faulty Exhaust Aftertreatment Glow Plug
Exhaust Aftertreatment Glow Plug harness is open or shorted
Exhaust Aftertreatment Glow Plug circuit poor electrical connection

How to Fix the DTC P26A2?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P26A2 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P26A2 code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.