PowertrainP20D9

Caution

Severity: Caution - get it checked when you can

Exhaust aftertreatment fuel supply control circuit low

22 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

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 22

Brand	Code	Description	System
Ashok Leyland CV	P20D9	Active Grille Air Shutter.'B'. Stuck On Brand	Powertrain
BAIC Motor	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
Mercedes-Benz	P20D9	No description available	Powertrain
BYD	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
Chery	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
DFFS	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
DFFX	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
DFXK	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
EOBD	P20D9	Avgasrening bränsleförsörjning styrkrets låg Brand	Powertrain
Geely	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
GM	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
Great Wall	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
Hafei	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
Hyundai	P20D9	No description available	Powertrain
Isuzu	P20D9	No description available	Powertrain
Land Rover	P20D9	Exhaust After Treatment Fuel Supply Control Circuit Low Brand	Powertrain
Peugeot	P20D9	No description available	Powertrain
Saab	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
MG (SAIC)	P20D9	Exhaust Aftertreatment Fuel Supply Control Circuit Low Brand	Powertrain
Smart	P20D9	No description available	Powertrain
Sprinter	P20D9	No description available	Powertrain
Toyota	P20D9	Exhaust aftertreatment fuel supply control circuit low 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 P20Dxx codes.