PowertrainP0A9C

Caution

Severity: Caution - get it checked when you can

Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance

29 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list · 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 29

Brand	Code	Description	System
Ashok Leyland CV	P0A9C	Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance SAE	Powertrain
BAIC Motor	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
Mercedes-Benz	P0A9C	Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance SAE	Powertrain
BYD	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
Chery	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
Daewoo	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
DFFS	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
DFFX	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
DFXK	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
EOBD	P0A9C	Julat/prestasi litar sensor suhu bateri Hibrid/EV 'A' Brand	Powertrain
Ford	P0A9C	Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance SAE	Powertrain
Geely	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
GM	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
Great Wall	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
Hafei	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
Holden	P0A9C	Hybrid/EV Battery Temperature Sensor 1 Performance Brand	Powertrain
Honda	P0A9C	Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance SAE	Powertrain
Hyundai	P0A9C	Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance SAE	Powertrain
Isuzu	P0A9C	Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance SAE	Powertrain
Land Rover	P0A9C	Hybrid battery temperature sensor A - circuit range/performance Brand	Powertrain
Mazda	P0A9C	Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance SAE	Powertrain
Mitsubishi	P0A9C	BATT.TEMP. sensor rationality Brand	Powertrain
Opel	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
Peugeot	P0A9C	Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance SAE	Powertrain
Proton	P0A9C	BATT.TEMP. sensor rationality Brand	Powertrain
Saab	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
MG (SAIC)	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance Brand	Powertrain
Subaru	P0A9C	Hybrid/EV Battery Temperature Sensor A Circuit Range/Performance SAE	Powertrain
Toyota	P0A9C	Hybrid Battery Temperature Sensor A Range/Performance 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 2

These 7-character codes are manufacturer-specific variants of P0A9C and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P0A9C09	Temperature sensor A of the hybrid/high-voltage battery has a malfunction. Component Failure. Brand	Powertrain
Mercedes-Benz	P0A9C84	Temperature sensor A of the hybrid/high-voltage battery has a malfunction. There is a signal below the permissible limit value. Brand	Powertrain

6Related codes

Browse Pxxx codes or P0A9xx codes.