PowertrainP0CF1

Caution

Severity: Caution - get it checked when you can

Hybrid/electric vehicle water temperature sensor circuit voltage is high

14 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 14

Brand	Code	Description	System
Ashok Leyland CV	P0CF1	No description available	Powertrain
Daewoo	P0CF1	No description available	Powertrain
DFFS	P0CF1	Open circuit or short circuit to battery Brand	Powertrain
EOBD	P0CF1	Hybrid/EV-elektronikens kylmedelstemperatursensor 'A'-krets hög Brand	Powertrain
GM	P0CF1	No description available	Powertrain
Holden	P0CF1	Hybrid Electronics Coolant Temperature Sensor Circuit High Voltage Brand	Powertrain
Honda	P0CF1	PCU Coolant Temperature Sensor Circuit High Brand	Powertrain
Hyundai	P0CF1	No description available	Powertrain
Isuzu	P0CF1	No description available	Powertrain
Land Rover	P0CF1	Hybrid/EV Electronics Coolant Temperature Sensor 'A' Circuit High Brand	Powertrain
Opel	P0CF1	No description available	Powertrain
Peugeot	P0CF1	No description available	Powertrain
Saab	P0CF1	No description available	Powertrain
Toyota	P0CF1	Hybrid/electric vehicle water temperature sensor circuit voltage is high 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 P0CF1 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P0CF100	Cooling circuit electrical power temperature1 electrical check: fault entry high Brand	Powertrain

6Related codes

Browse Pxxx codes or P0CFxx codes.