PowertrainP1D03

Caution

Severity: Caution - get it checked when you can

Busbar voltage too high

11 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

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

Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.

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 11

Brand	Code	Description	System
BYD	P1D03	Busbar voltage too high Brand	Powertrain
Chery	P1D03	Water temperature too high Brand	Powertrain
DFFS	P1D03	Motor position signal abnormality Brand	Powertrain
EOBD	P1D03	Vevhusventil Brand	Powertrain
Honda	P1D03	No description available	Powertrain
Hyundai	P1D03	No description available	Powertrain
Mitsubishi	P1D03	AC input current Brand	Powertrain
Peugeot	P1D03	No description available	Powertrain
Proton	P1D03	AC input current Brand	Powertrain
MG (SAIC)	P1D03	validation of IHv Brand	Powertrain
Subaru	P1D03	No description available	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 P1D0xx codes.