Fault code lookup

PowertrainP1B44

Caution

Severity: Caution - get it checked when you can

Drive Motor 2 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

  1. Sensor or actuator fault
  2. Wiring or connector fault
  3. Vacuum or intake leak
  4. Fuel or ignition problem
  5. 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

BrandCodeDescriptionSystem
BYDP1B44GTOV battery voltage too high BrandPowertrain
CheryP1B448 BMU fault BrandPowertrain
DaewooP1B44Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage BrandPowertrain
EOBDP1B44ECU Kawalan Hibrid 1 BrandPowertrain
GMP1B44Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage BrandPowertrain
HoldenP1B44Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage BrandPowertrain
HyundaiP1B44No description available Powertrain
MitsubishiP1B44B/P stroke sensor BrandPowertrain
OpelP1B44Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage BrandPowertrain
PeugeotP1B44Drive Motor 2 Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage BrandPowertrain
ProtonP1B44B/P stroke sensor BrandPowertrain
SaabP1B44drive motor 2 control module Hybrid/EV battery voltage isolation sensing circuit 2 high voltage BrandPowertrain
MG (SAIC)P1B44Main Relay Driver Feedback Frequency Error BrandPowertrain
SuzukiP1B44Hybrid Battery Cell Sensor Temperature Range / Performance BrandPowertrain

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 P1B4xx codes.

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