PowertrainP00B4

Caution

Severity: Caution - get it checked when you can

Radiator temperature sensor shorted to power

26 brands affected · Description from Toyota data.

Key terms: Oxygen sensor: measures oxygen in the exhaust gas · Mass air flow sensor: measures the air going into the engine · Powertrain: engine, transmission and emissions

1What it means in plain English

This code is in the fuel and air metering range, which includes fuel-pressure and camshaft-timing faults.

2Common causes

Dirty or faulty mass air flow sensor
Vacuum or intake air leak
Weak fuel pump or clogged fuel filter
Faulty fuel injector
Faulty oxygen sensor
Wiring or connector fault

3Can I drive?

Caution · drive with care

Have it diagnosed promptly. Some codes in this range affect fuel pressure or camshaft timing; if the engine loses power, runs badly, or stalls, stop safely and get professional help.

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 26

Brand	Code	Description	System
Ashok Leyland CV	P00B4	No description available	Powertrain
BAIC Motor	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
BYD	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
Chery	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
Daewoo	P00B4	No description available	Powertrain
DFFS	P00B4	Steering wheel shift control signal failure Brand	Powertrain
DFFX	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
DFXK	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
EOBD	P00B4	Radiator coolant temperature sensor circuit high Brand	Powertrain
Geely	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
GM	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
Great Wall	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
Hafei	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
Holden	P00B4	Radiator Coolant Temperature (RCT) Sensor Circuit High Voltage Brand	Powertrain
Honda	P00B4	No description available	Powertrain
Hyundai	P00B4	No description available	Powertrain
Isuzu	P00B4	No description available	Powertrain
Land Rover	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
Maserati	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
Mitsubishi	P00B4	Water temperature sensor open Brand	Powertrain
Opel	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
Peugeot	P00B4	No description available	Powertrain
Proton	P00B4	Water temperature sensor open Brand	Powertrain
Saab	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
MG (SAIC)	P00B4	Radiator Coolant Temperature Sensor Circuit High Brand	Powertrain
Toyota	P00B4	Radiator temperature sensor shorted to power 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 P00Bxx codes.