Fault code lookup

PowertrainP1EF0

Caution

Severity: Caution - get it checked when you can

PTC-varmerelé (1) krets høy

9 brands affected · Description from EOBD 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 9

BrandCodeDescriptionSystem
DaewooP1EF0No description available Powertrain
EOBDP1EF0PTC-varmerelé (1) krets høy BrandPowertrain
GMP1EF0No description available Powertrain
HoldenP1EF0Hybrid/EV Battery Interface Control Module RAM BrandPowertrain
MitsubishiP1EF0PTC heater relay(1) circuit high BrandPowertrain
OpelP1EF0No description available Powertrain
PeugeotP1EF0No description available Powertrain
ProtonP1EF0PTC heater relay(1) circuit high BrandPowertrain
SaabP1EF0No 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.

5Related codes

Browse Pxxx codes or P1EFxx codes.

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