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TuningBot DTC Database · v4.37.15

P1591 Honda - Motor current U phase signal circuit - high input

Manufacturer-specific interpretation for Honda. All interpretations of P1591

P · PowertrainEngineOBD2

What P1591 means

P1591
Motor current U phase signal circuit - high input Honda · engine Data confidence 62%

The control module detected that the Motor current U phase signal signal stayed above the expected range. This is the manufacturer-specific definition used by Honda.

Possible causes

  • Wiring
  • motor control module (MCM) programming
  • MCM
  • motor current U phase sensor

Related and nearby codes

How to read P1591

P

Powertrain: engine, transmission and driveline systems.

1

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

591

Specific fault index within the subsystem.

Frequently asked questions about P1591

What does P1591 mean?

Motor current U phase signal circuit - high input. The control module detected that the Motor current U phase signal signal stayed above the expected range. This is the manufacturer-specific definition used by Honda.

Is P1591 generic or manufacturer-specific?

P1591 is a manufacturer-specific code. In this database it is documented for: Honda. The same number can mean something different on other brands.

Can TuningBot remove P1591 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 Honda engines See the results →

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