PowertrainP1701

Caution

Severity: Caution - get it checked when you can

Reverse engagement error

33 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

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 33

Brand	Code	Description	System
Ashok Leyland CV	P1701	No description available	Powertrain
BAIC Motor	P1701	Power Train state signal wire open Brand	Powertrain
Mercedes-Benz	P1701	No description available	Powertrain
BMW	P1701	implausible signal or value Brand	Powertrain
BYD	P1701	Oil pump motor fault Brand	Powertrain
Chery	P1701	Output security system fault Brand	Powertrain
Daewoo	P1701	Reverse Engagement Error Brand	Powertrain
DFFS	P1701	The gears are inconsistent Brand	Powertrain
DFXK	P1701	Transmission control unit locked Brand	Powertrain
EOBD	P1701	Gearkasse Brand	Powertrain
Ford	P1701	No description available	Powertrain
Geely	P1701	TCU Supply Voltage Low Brand	Powertrain
GM	P1701	Reverse Engagement Error Brand	Powertrain
Holden	P1701	Transmission Fluid Pressure Valve Position Switch Indicates Park/Neutral With Drive Ratio Brand	Powertrain
Honda	P1701	No description available	Powertrain
Isuzu	P1701	No description available	Powertrain
Land Rover	P1701	Reverse engagement error Brand	Powertrain
Mahindra	P1701	No description available	Powertrain
Maserati	P1701	No description available	Powertrain
Mazda	P1701	No description available	Powertrain
Mitsubishi	P1701	ELC. Oil pump air bleeding fail Brand	Powertrain
Nissan	P1701	No description available	Powertrain
Opel	P1701	Reverse Engagement Error Brand	Powertrain
Peugeot	P1701	No description available	Powertrain
Porsche	P1701	'EGS Gangvergleich negativ - plaus' Brand	Powertrain
Proton	P1701	ELC. Oil pump air bleeding fail Brand	Powertrain
Saab	P1701	Reverse Engagement Error Brand	Powertrain
MG (SAIC)	P1701	Gear Mode Switch Fault Brand	Powertrain
Subaru	P1701	Cruise Control Set Signal Circuit Malfunction for AT Brand	Powertrain
Suzuki	P1701	CAN communication problem - TCM Brand	Powertrain
Tata	P1701	No description available	Powertrain
Toyota	P1701	Reverse engagement error Brand	Powertrain
Volkswagen	P1701	Gearbox control unit disabled 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 2

These 7-character codes are manufacturer-specific variants of P1701 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P170100	TCU supply voltage low Brand	Powertrain
Volvo	P170164	If the transmission control module (TCM) registers that reverse or forward drive is not engaged when the gear selector is moved to position R or D, diagnostic trouble code (DTC) TCM- or TCM-P073000 depending on the cause of the fault Brand	Powertrain

6Related codes

Browse Pxxx codes or P170xx codes.