PowertrainP0C45

Caution

Severity: Caution - get it checked when you can

Hybrid Battery Pack Coolant Temperature Sensor Circuit High

24 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

Safety: This code relates to engine cooling or temperature. Overheating can damage the engine.

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

Watch the temperature gauge. Stop safely and let the engine cool if the gauge climbs, steam appears, or a red warning light comes on.

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 24

Brand	Code	Description	System
Ashok Leyland CV	P0C45	Engine Cold Start. Injection Timing. Operation Failure Brand	Powertrain
BAIC Motor	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
Mercedes-Benz	P0C45	No description available	Powertrain
BYD	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
Chery	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
Daewoo	P0C45	No description available	Powertrain
DFFS	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
DFFX	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
DFXK	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
EOBD	P0C45	Hybrid/EV-batteripacks kylmedelstemperatursensor 'A'-krets hög Brand	Powertrain
Geely	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
GM	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
Great Wall	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
Hafei	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
Holden	P0C45	Hybrid/EV Battery Pack Coolant Temperature Sensor 1 Circuit High Voltage Brand	Powertrain
Honda	P0C45	No description available	Powertrain
Hyundai	P0C45	No description available	Powertrain
Isuzu	P0C45	No description available	Powertrain
Land Rover	P0C45	No description available	Powertrain
Opel	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
Peugeot	P0C45	No description available	Powertrain
Saab	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit High Brand	Powertrain
MG (SAIC)	P0C45	Coolant Temperature Drive out of Range Low Brand	Powertrain
Toyota	P0C45	Hybrid Battery Pack Coolant Temperature Sensor Circuit 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 4

These 7-character codes are manufacturer-specific variants of P0C45 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P0C4500	The coolant temperature sensor in the high-voltage battery module has a short circuit to positive. Brand	Powertrain
Mercedes-Benz	P0C4512	The coolant temperature sensor in the high-voltage battery module has a short circuit to positive. Brand	Powertrain
Mercedes-Benz	P0C4514	The coolant temperature sensor in the hybrid/high-voltage battery module has a short circuit to positive. There is a short circuit to ground or an open circuit. Brand	Powertrain
Mercedes-Benz	P0C4515	The coolant temperature sensor in the hybrid/high-voltage battery module has a short circuit to positive. There is a short circuit to positive or an open circuit. Brand	Powertrain

6Related codes

Browse Pxxx codes or P0C4xx codes.