PowertrainP0393

Serious

Severity: Serious - have it checked soon

Camshaft Position Sensor B Circuit High (Bank 2)

30 brands affected · Generic SAE J2012 description.

Key terms: Catalytic converter: cleans the exhaust gases · Bank 2: the side of the engine containing cylinder 2 · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

This range covers ignition and engine-speed signals, including misfires and crankshaft or camshaft position sensors.

2Common causes

Worn or fouled spark plug
Faulty ignition coil
Vacuum or intake air leak
Low fuel pressure
Faulty crankshaft or camshaft position sensor
Low engine compression

3Can I drive?

Serious · drive with care

A failing crankshaft or camshaft sensor can cut the engine without warning, and a flashing check-engine light points to a misfire that can damage the catalytic converter. If the light is flashing, stop as soon as it is safe and have the car towed. Otherwise drive gently to a workshop; if it stalls or will not restart, have it towed.

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 30

Brand	Code	Description	System
Ashok Leyland CV	P0393	Camshaft Position Sensor B Circuit High (Bank 2) SAE	Powertrain
BAIC Motor	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
Mercedes-Benz	P0393	Camshaft Position Sensor B Circuit High (Bank 2) SAE	Powertrain
BMW	P0393	Camshaft Pos Sensor B Circuit High Input Bank2 Brand	Powertrain
BYD	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
Chery	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
Daewoo	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
DFFS	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
DFFX	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
DFXK	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
EOBD	P0393	Kamaxelpositionssensor 'B' krets hög bank 2 Brand	Powertrain
Geely	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
GM	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
Great Wall	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
Hafei	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
Holden	P0393	Exhaust Camshaft Position Sensor Circuit High Voltage Bank 2 Brand	Powertrain
Honda	P0393	Camshaft Position Sensor B Circuit High (Bank 2) SAE	Powertrain
Hyundai	P0393	Camshaft Position Sensor B Circuit High (Bank 2) SAE	Powertrain
Isuzu	P0393	Camshaft Position Sensor B Circuit High (Bank 2) SAE	Powertrain
Land Rover	P0393	Camshaft position sensor B-circuit high Brand	Powertrain
Maserati	P0393	Camshaft Position Sensor Circuit High - Bank 2 Sensor 2 Brand	Powertrain
Opel	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
Peugeot	P0393	Camshaft Position Sensor B Circuit High (Bank 2) SAE	Powertrain
Porsche	P0393	Camshaft Position Sensor B Circuit High (Bank 2) SAE	Powertrain
Saab	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
MG (SAIC)	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
Suzuki	P0393	Camshaft Position Sensor 'B' Circuit High (Bank 2) Brand	Powertrain
Tata	P0393	Camshaft Position Sensor 'B' Circuit High Bank 2 Brand	Powertrain
Toyota	P0393	Camshaft Position Sensor B Circuit High Bank 2 Brand	Powertrain
Volkswagen	P0393	Camshaft position sensor (G301): signal too high; Defective 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.

5Extended variant codes 1

These 7-character codes are manufacturer-specific variants of P0393 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P039300	The position sensor of the exhaust camshaft (cylinder bank 2) has a short circuit to positive. Brand	Powertrain

6Related codes

Browse Pxxx codes or P039xx codes.