PowertrainP1D934B

Caution

Severity: Caution - get it checked when you can

A fault was detected in low-temperature circuit 1 due to an implausible transmission oil temperature. over temperature

1 brand affected · Description from Mercedes-Benz 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 transmission fluid temperature. Overheating can quickly damage the transmission.

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 transmission temperature warning or rough shifting. Stop safely and let the transmission cool if the warning is on or the transmission slips.

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 1

Brand	Code	Description	System
Mercedes-Benz	P1D934B	A fault was detected in low-temperature circuit 1 due to an implausible transmission oil temperature. over temperature 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 P1D9xx codes.