PowertrainP0AC9

Caution

Severity: Caution - get it checked when you can

Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic

22 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 the battery temperature. A hot or poorly cooled battery can lose power, and a damaged battery carries a fire risk.

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 for a battery temperature warning. If the warning is on, stop safely and let the battery cool; do not charge a hot battery and have it checked.

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 22

Brand	Code	Description	System
Ashok Leyland CV	P0AC9	No description available	Powertrain
BAIC Motor	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
BYD	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
Chery	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
Daewoo	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
DFFS	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
DFFX	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
DFXK	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
EOBD	P0AC9	Penciri suhu bateri Hibrid/EV 'B' litar tidak stabil/terganggu Brand	Powertrain
Geely	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
GM	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
Great Wall	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
Hafei	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
Holden	P0AC9	Hybrid/EV Battery Temperature Sensor 2 Circuit Erratic Brand	Powertrain
Hyundai	P0AC9	No description available	Powertrain
Isuzu	P0AC9	No description available	Powertrain
Land Rover	P0AC9	Hybrid battery temperature sensor B - circuit intermittent/erratic Brand	Powertrain
Opel	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
Peugeot	P0AC9	No description available	Powertrain
Saab	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
MG (SAIC)	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic Brand	Powertrain
Toyota	P0AC9	Hybrid Battery Temperature Sensor B Circuit Intermittent/Erratic 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 P0ACxx codes.