PowertrainP2303

Caution

Severity: Caution - get it checked when you can

Ignition coil B short to low voltage (cylinder 3)

34 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 34

Brand	Code	Description	System
Ashok Leyland CV	P2303	Maximum Negative Rail Pressure Deviation With Metering Unit ON Lower Limit Is Exceeded (Actual Rail Pressure Exceeded The Set Point) Brand	Powertrain
BAIC Motor	P2303	Ignition Coil B Primary Control Circuit Low Brand	Powertrain
Mercedes-Benz	P2303	No description available	Powertrain
BYD	P2303	SPORT mode switch fault Brand	Powertrain
Chery	P2303	Ignition Coil B Primary Control Circuit Low Brand	Powertrain
Daewoo	P2303	Ignition Coil B Primary Control Circuit Low Brand	Powertrain
Daihatsu	P2303	Ignition coil circuit short to ground Brand	Powertrain
DFFS	P2303	Cylinder 2 Ignition Coil Fault Brand	Powertrain
DFFX	P2303	Cylinder 3 ignition coil open circuit Brand	Powertrain
DFXK	P2303	Ignition Coil B Primary Control Circuit Low Brand	Powertrain
EOBD	P2303	Tändspole 'B' primärstyrkrets låg Brand	Powertrain
Geely	P2303	Cylinder 2 ignition coil short to ground Brand	Powertrain
GM	P2303	Ignition Coil B Primary Control Circuit Low Brand	Powertrain
Great Wall	P2303	Cylinder 2 Ignition Coil Short to Ground Brand	Powertrain
Hafei	P2303	Ignition Coil B Primary Control Circuit Low Brand	Powertrain
Holden	P2303	Ignition Coil 2 Control Circuit Low Voltage Brand	Powertrain
Hyundai	P2303	No description available	Powertrain
Isuzu	P2303	No description available	Powertrain
Land Rover	P2303	Ignition coil B primary control - circuit low Brand	Powertrain
Mahindra	P2303	No description available	Powertrain
Maserati	P2303	No description available	Powertrain
Mitsubishi	P2303	No description available	Powertrain
Opel	P2303	Ignition Coil B Primary Control Circuit Low Brand	Powertrain
Perodua	P2303	Ignition coil circuit short to ground Brand	Powertrain
Peugeot	P2303	No description available	Powertrain
Porsche	P2303	No description available	Powertrain
Saab	P2303	Ignition Coil B Primary Control Circuit Low Brand	Powertrain
MG (SAIC)	P2303	Ignition Coil B Primary Control Circuit Low Brand	Powertrain
Sprinter	P2303	No description available	Powertrain
Suzuki	P2303	No description available	Powertrain
SWM Motor	P2303	Cylinder 3 ignition coil short circuit to low voltage Brand	Powertrain
Tata	P2303	Ignition Coil 2 Circuit Primary Low Current Brand	Powertrain
Toyota	P2303	Ignition coil B short to low voltage (cylinder 3) Brand	Powertrain
Volkswagen	P2303	Control circuit for ignition coil 2: short to GND; No signal/communication 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 P230xx codes.