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TuningBot DTC Database · v4.37.15

P269B Exhaust Aftertreatment Glow Plug Control Circuit/Open

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainIgnitionOBD2

What P269B means

P269B
Exhaust Aftertreatment Glow Plug Control Circuit/Open Generic · ignition Data confidence 78%

The control module detected an interruption (open circuit) in the Exhaust Aftertreatment Glow Plug Control circuit, so the expected electrical continuity was not present.

Symptoms

  • Hard cold starting possible
  • MIL or glow indicator active
  • Possible white smoke at cold start

Possible causes

  • One or more glow plugs open circuit
  • Glow plug control module fault
  • Wiring or connector fault

Recommended checks

  • Measure individual glow plug resistance
  • Check control module output and supply
  • Inspect wiring and connectors

Related and nearby codes

How to read P269B

P

Powertrain: engine, transmission and driveline systems.

2

Generic SAE-standard code: same meaning on every make.

69B

Specific fault index within the subsystem.

Frequently asked questions about P269B

What does P269B mean?

Exhaust Aftertreatment Glow Plug Control Circuit/Open. The control module detected an interruption (open circuit) in the Exhaust Aftertreatment Glow Plug Control circuit, so the expected electrical continuity was not present.

Is P269B generic or manufacturer-specific?

P269B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P269B at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningDyno-tested results by model and engine See the results →

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