PowertrainP1E0C

Caution

Severity: Caution - get it checked when you can

Large cell temperature difference warning

13 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 13

Brand	Code	Description	System
Daewoo	P1E0C	Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage Brand	Powertrain
DFFS	P1E0C	Large cell temperature difference warning Brand	Powertrain
EOBD	P1E0C	Empty fuel tank Brand	Powertrain
GM	P1E0C	Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage Brand	Powertrain
Holden	P1E0C	Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage Brand	Powertrain
Hyundai	P1E0C	No description available	Powertrain
Maserati	P1E0C	Empty fuel tank Brand	Powertrain
Mitsubishi	P1E0C	PTC heater voltage sensor high Brand	Powertrain
Opel	P1E0C	Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage Brand	Powertrain
Peugeot	P1E0C	Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 Low Voltage Brand	Powertrain
Proton	P1E0C	PTC heater voltage sensor high Brand	Powertrain
Saab	P1E0C	No description available	Powertrain
Toyota	P1E0C	Large cell temperature difference warning 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 P1E0xx codes.