Fault code lookup

PowertrainP20C7

Caution

Severity: Caution - get it checked when you can

Reductant heater 'D' control circuit low

21 brands affected · Description from Toyota 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 21

BrandCodeDescriptionSystem
Ashok Leyland CVP20C7Auxiliary Transmission. Hydraulic Pump Electric Motor. Control Module BrandPowertrain
BAIC MotorP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
Mercedes-BenzP20C7No description available Powertrain
BYDP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
CheryP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
DFFSP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
DFFXP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
DFXKP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
EOBDP20C7Reduktantvarmer 'D' styringskrets, lav BrandPowertrain
GeelyP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
GMP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
Great WallP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
HafeiP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
HyundaiP20C7No description available Powertrain
IsuzuP20C7No description available Powertrain
Land RoverP20C7Reductant heater D control - circuit low BrandPowertrain
PeugeotP20C7No description available Powertrain
SaabP20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
MG (SAIC)P20C7Reductant Heater 'D' Control Circuit Low BrandPowertrain
SmartP20C7No description available Powertrain
ToyotaP20C7Reductant heater 'D' control circuit low 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 P20Cxx codes.

OpenDTC - independent fault code reference