PowertrainP078F

Caution

Severity: Caution - get it checked when you can

Down switch stuck (steering column)

6 brands affected · Description from Toyota data.

Key terms: Powertrain: engine, transmission and emissions

Safety: This code relates to the steering system. Steering effort may increase.

1What it means in plain English

This range normally covers the transmission control system, but some manufacturers use P07-P09 codes for unrelated functions (fuel pump control, air-mix motors, lighting or windows). Check the description before assuming it is a transmission fault.

2Common causes

Low or dirty transmission fluid
Faulty shift solenoid
Faulty speed sensor
Wiring or connector fault
Internal transmission wear

3Can I drive?

Caution · drive with care

Steering effort may increase. If the steering feels heavy or unpredictable, stop safely and have it checked.

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 6

Brand	Code	Description	System
Ashok Leyland CV	P078F	No description available	Powertrain
DFFS	P078F	Down switch stuck Brand	Powertrain
EOBD	P078F	Litar suis mod pemindahan 'C' Brand	Powertrain
Isuzu	P078F	No description available	Powertrain
Land Rover	P078F	Transmission Mode Switch 'C' Circuit Brand	Powertrain
Toyota	P078F	Down switch stuck (steering column) 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 P078xx codes.