Fault code lookup

PowertrainP1591

Caution

Severity: Caution - get it checked when you can

Neutral position switch circuit low input

17 brands affected · Description from GM data.

Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions

1What it means in plain English

The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.

2Common causes

  1. Sensor or actuator fault
  2. Wiring or connector fault
  3. Vacuum or intake leak
  4. Fuel or ignition problem
  5. Control module fault

3Can I drive?

Caution · drive with care

Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 17

BrandCodeDescriptionSystem
CheryP1591Boost Pressure Regulation Valve (N75): No Function BrandPowertrain
DaewooP1591Neutral position switch circuit low input BrandPowertrain
DFXKP1591Boost Pressure Regulation Valve (N75): No Function BrandPowertrain
EOBDP1591Wastegate-bypassregelklep BrandPowertrain
GeelyP1591Boost Pressure Regulation Valve (N75): No Function BrandPowertrain
GMP1591Neutral position switch circuit low input BrandPowertrain
HoldenP1591Body Control Module Engine Speed Request Signal Message Counter Incorrect BrandPowertrain
HondaP1591No description available Powertrain
HyundaiP1591No description available Powertrain
Land RoverP1591Speed control decrease distance signal BrandPowertrain
OpelP1591Neutral position switch circuit low input BrandPowertrain
PeugeotP1591No description available Powertrain
PorscheP1591No description available Powertrain
ProtonP1591No description available Powertrain
SaabP1591Neutral position switch circuit low input BrandPowertrain
SubaruP1591Neutral Position Switch Circuit Low input for AT BrandPowertrain
TataP1591No description available Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 2

These 7-character codes are manufacturer-specific variants of P1591 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzP159100DebEvent TypError Prio4 Non OBD - BW BrandPowertrain
SprinterP159100DPF-Charakteristik: Fehler aus Kennlinienprüfung BrandPowertrain

6Related codes

Browse Pxxx codes or P159xx codes.

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