PowertrainP079C

Caution

Severity: Caution - get it checked when you can

Backward switch stuck (seat cushion switch)

23 brands affected · Description from Toyota data.

Key terms: Powertrain: engine, transmission and emissions

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

If the transmission slips, jerks, will not shift, or a transmission temperature warning is on, stop driving and let it cool: continuing can cause expensive damage. If the code names a different system (for example the fuel pump), treat it on its own terms; a fuel-pump control failure can stall the car, so have it checked before driving further. Otherwise drive gently 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 23

Brand	Code	Description	System
Ashok Leyland CV	P079C	Drive Motor / Actuator. C Component. Temperature Sensor. Overtemperature Brand	Powertrain
BAIC Motor	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
BYD	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
Chery	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
Chrysler	P079C	No description available	Powertrain
Daewoo	P079C	No description available	Powertrain
DFFS	P079C	Backward switch stuck Brand	Powertrain
DFFX	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
DFXK	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
EOBD	P079C	Sukimo trinties elemento 'C' slydimas Brand	Powertrain
Geely	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
GM	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
Great Wall	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
Hafei	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
Holden	P079C	Transmission Clutch 3 Slip Detected Brand	Powertrain
Hyundai	P079C	No description available	Powertrain
Isuzu	P079C	No description available	Powertrain
Land Rover	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
Opel	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
Peugeot	P079C	No description available	Powertrain
Saab	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
MG (SAIC)	P079C	Transmission Friction Element 'C' Slip Detected Brand	Powertrain
Toyota	P079C	Backward switch stuck (seat cushion switch) 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 P079xx codes.