PowertrainP1A4C

Caution

Severity: Caution - get it checked when you can

Single battery voltage too high

9 brands affected · Description from BYD 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 charging system. The battery may go flat and the car may stall.

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

The electrical system may fail and the battery may go flat, risking a stall. If the battery or charging warning light is on, drive straight to a workshop.

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 9

Brand	Code	Description	System
BYD	P1A4C	Single battery voltage too high Brand	Powertrain
Chery	P1A4C	PTC water pump output out of range Brand	Powertrain
EOBD	P1A4C	OR jännite Brand	Powertrain
Honda	P1A4C	No description available	Powertrain
Land Rover	P1A4C	No description available	Powertrain
Mitsubishi	P1A4C	OR line voltage Brand	Powertrain
Peugeot	P1A4C	No description available	Powertrain
Proton	P1A4C	OR line voltage Brand	Powertrain
MG (SAIC)	P1A4C	Accelerator PedalPosition Sensors 1 General Faults 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 P1A4xx codes.