PowertrainP20EB

Caution

Severity: Caution - get it checked when you can

Reductant Control Module Power Relay De-Energized Performance - Too Late

27 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list · 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

Sensor or actuator fault
Wiring or connector fault
Vacuum or intake leak
Fuel or ignition problem
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 27

Brand	Code	Description	System
Ashok Leyland CV	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late SAE	Powertrain
BAIC Motor	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
Mercedes-Benz	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late SAE	Powertrain
BYD	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
Chery	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
Daewoo	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late SAE	Powertrain
DFFS	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
DFFX	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
DFXK	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
EOBD	P20EB	Reductant control module power relay de-energized performance - too late Brand	Powertrain
Ford	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late SAE	Powertrain
Geely	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
GM	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
Great Wall	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
Hafei	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
Holden	P20EB	Reductant Control Module Relay De-Energized Too Late Brand	Powertrain
Hyundai	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late SAE	Powertrain
Isuzu	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late SAE	Powertrain
Land Rover	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
Mitsubishi	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late SAE	Powertrain
Opel	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
Peugeot	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late SAE	Powertrain
Saab	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
MG (SAIC)	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late Brand	Powertrain
Smart	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late SAE	Powertrain
Tata	P20EB	Reductant Control Module Power Relay De-Energized Performance - Too Late SAE	Powertrain
Toyota	P20EB	Reductant control module power relay de-energized performance - too late Brand	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 P20Exx codes.