What are the common causes of P269F?

An open in the exhaust aftertreatment glow plug circuit. A failed exhaust aftertreatment glow plug. A corroded or backed out pin at the exhaust aftertreatment glow plug connector. Chafed wiring along the exhaust aftertreatment glow plug harness.

Read exhaust aftertreatment glow plug status on a scan tool. Command the exhaust aftertreatment glow plug on and off. Test the exhaust aftertreatment glow plug circuit for open and short faults. Check the exhaust aftertreatment glow plug resistance. Replace the exhaust aftertreatment glow plug if the circuit tests good. Clear the code and retest.

P269F

Exhaust Aftertreatment Glow Plug Circuit/Open

System: Computer output circuits (P code)
Lamp: Check Engine Light
Category: Powertrain - Computer and Auxiliary Controls

What it means

P269F means Exhaust Aftertreatment Glow Plug Circuit/Open.

Check these first

An open in the exhaust aftertreatment glow plug circuit
A failed exhaust aftertreatment glow plug
A corroded or backed out pin at the exhaust aftertreatment glow plug connector
Chafed wiring along the exhaust aftertreatment glow plug harness

What to do next

Read exhaust aftertreatment glow plug status on a scan tool
Command the exhaust aftertreatment glow plug on and off
Test the exhaust aftertreatment glow plug circuit for open and short faults
Check the exhaust aftertreatment glow plug resistance
Replace the exhaust aftertreatment glow plug if the circuit tests good
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.