Fault code lookup

PowertrainP1EC8

Caution

Severity: Caution - get it checked when you can

Low side short circuit in voltage reduction

11 brands affected · Description from BYD 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 11

BrandCodeDescriptionSystem
BYDP1EC8Low side short circuit in voltage reduction BrandPowertrain
DaewooP1EC8No description available Powertrain
EOBDP1EC8Kewajaran sensor suhu bateri BrandPowertrain
GMP1EC8No description available Powertrain
HoldenP1EC8Hybrid/EV Battery Negative Contactor Control Circuit Open BrandPowertrain
MitsubishiP1EC8BATT.TEMP sensor rationality BrandPowertrain
OpelP1EC8No description available Powertrain
PeugeotP1EC8No description available Powertrain
ProtonP1EC8BATT.TEMP sensor rationality BrandPowertrain
SaabP1EC8No description available Powertrain
MG (SAIC)P1EC8Current Sensor Module (CMU) 09 Reports Temperature Measure Fail BrandPowertrain

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 P1ECxx codes.

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