PowertrainP1D1E

Caution

Severity: Caution - get it checked when you can

Controller temperature too high alarm

5 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 engine cooling or temperature. Overheating can damage the engine.

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 the temperature gauge. Stop safely and let the engine cool if the gauge climbs, steam appears, or a red warning light comes on.

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 5

Brand	Code	Description	System
DFFS	P1D1E	Controller temperature too high alarm Brand	Powertrain
Honda	P1D1E	No description available	Powertrain
Proton	P1D1E	No description available	Powertrain
MG (SAIC)	P1D1E	monitoring shutoff path Brand	Powertrain
Toyota	P1D1E	Controller temperature too high alarm 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 P1D1E and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P1D1E00	The temperature sensor for the refrigerant of the high-voltage battery has a short circuit to ground. Brand	Powertrain

6Related codes

Browse Pxxx codes or P1D1xx codes.