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TuningBot DTC Database · v4.37.15

P2309 Ignition Coil D Primary Control Circuit Low

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

P · PowertrainIgnitionOBD2

What P2309 means

P2309
Ignition Coil D Primary Control Circuit Low Generic · ignition Data confidence 85%

The control module detected that the signal in the Ignition Coil D Primary Control circuit stayed below the expected operating range.

Possible causes

  • Wiring short to ground
  • ignition coil

Related and nearby codes

How to read P2309

P

Powertrain: engine, transmission and driveline systems.

2

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

309

Specific fault index within the subsystem.

Frequently asked questions about P2309

What does P2309 mean?

Ignition Coil D Primary Control Circuit Low. The control module detected that the signal in the Ignition Coil D Primary Control circuit stayed below the expected operating range.

Is P2309 generic or manufacturer-specific?

P2309 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2309 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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