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TuningBot DTC Database · v4.37.15

P17A9 Neutral detection fault (in mode D)

1 manufacturer-specific interpretation across 1 manufacturer in the TuningBot DTC database.

P · PowertrainEngineOBD2
Brand pages:PSA

PSA

1 interpretation
P17A9
Neutral detection fault (in mode D) PSA · engine Data confidence 72%

The stored code identifies a fault of the Neutral detection fault (in mode D). Documented for the AM6/AT6 automatic gearbox ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.

Applies to Peugeot AM6/AT6 automatic gearbox ECU

Related and nearby codes

How to read P17A9

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

7A9

Specific fault index within the subsystem.

Frequently asked questions about P17A9

What does P17A9 mean?

Neutral detection fault (in mode D). The stored code identifies a fault of the Neutral detection fault (in mode D). Documented for the AM6/AT6 automatic gearbox ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.

Is P17A9 generic or manufacturer-specific?

P17A9 is a manufacturer-specific code. In this database it is documented for: PSA. The same number can mean something different on other brands.

Can TuningBot remove P17A9 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 tuningStage 1 dyno results for PSA engines See the results →

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