PowertrainP1B0C

Caution

Severity: Caution - get it checked when you can

Drive Motor Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage

14 brands affected · Description from GM 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 14

Brand	Code	Description	System
Mercedes-Benz	P1B0C	No description available	Powertrain
BYD	P1B0C	DSP reset fault Brand	Powertrain
Chery	P1B0C	Over-current Brand	Powertrain
Daewoo	P1B0C	Drive Motor Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage Brand	Powertrain
DFXK	P1B0C	BMS enabled drive module fault Brand	Powertrain
EOBD	P1B0C	Drivbatteri Brand	Powertrain
GM	P1B0C	Drive Motor Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage Brand	Powertrain
Holden	P1B0C	Drive Motor Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage Brand	Powertrain
Mitsubishi	P1B0C	On board charging over current Brand	Powertrain
Opel	P1B0C	Drive Motor Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage Brand	Powertrain
Peugeot	P1B0C	No description available	Powertrain
Proton	P1B0C	On board charging over current Brand	Powertrain
Saab	P1B0C	drive motor control module Hybrid/EV battery voltage isolation sensing circuit 2 high voltage Brand	Powertrain
Suzuki	P1B0C	Hybrid/EV Battery Positive Contactor Diag Failure 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 1

These 7-character codes are manufacturer-specific variants of P1B0C and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P1B0C00	The calibration from the High-Voltage sensor in control unit 'Electric machine A' is faulty. Brand	Powertrain

6Related codes

Browse Pxxx codes or P1B0xx codes.