PowertrainP1631

Caution

Severity: Caution - get it checked when you can

Theft Deterrent Start Enable Signal Not Correct

33 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list · 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	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Mercedes-Benz	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
BMW	P1631	opening spring faulty Brand	Powertrain
BYD	P1631	Charging system fault Brand	Powertrain
Chery	P1631	Accelerator Position Sensor (G79): Signal too High Brand	Powertrain
Daewoo	P1631	Injection pump error Brand	Powertrain
Daihatsu	P1631	Vehicle stability control system fault Brand	Powertrain
DFFS	P1631	Electronic Control Unit Brand	Powertrain
DFFX	P1631	Safety level 2: ECU failure Brand	Powertrain
DFXK	P1631	Manufacturer controlled computer and auxiliary outputs Brand	Powertrain
EOBD	P1631	Juhtseade Brand	Powertrain
Ford	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Geely	P1631	Accelerator Position Sensor (G79): Signal too High Brand	Powertrain
GM	P1631	Vehicle Theft Sys Improper Password Brand	Powertrain
Great Wall	P1631	Error path for recovery which is suppressed Brand	Powertrain
Holden	P1631	Immobilizer Fuel Enable Signal Not Correct Brand	Powertrain
Hyundai	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Isuzu	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Land Rover	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Mahindra	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Mazda	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Mitsubishi	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Opel	P1631	Vehicle Theft Sys Improper Password Brand	Powertrain
Perodua	P1631	Vehicle stability control system fault Brand	Powertrain
Peugeot	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Porsche	P1631	CAN-Schnittstelle: Timeout Gateway Brand	Powertrain
Proton	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Saab	P1631	Vehicle Theft Sys Improper Password Brand	Powertrain
Sprinter	P1631	Theft Deterrent Start Enable Signal Not Correct SAE	Powertrain
Suzuki	P1631	Engine overspeed condition Brand	Powertrain
Tata	P1631	Electronic Throttle Driver Overheat Brand	Powertrain
Toyota	P1631	Electronic Control Unit (ECU) Brand	Powertrain
Volkswagen	P1631	Accelerator Position Sensor (G79): Signal too High 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 P1631 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P163100	Immobilizer fault (refer to immobilizer section) Brand	Powertrain

6Related codes

Browse Pxxx codes or P163xx codes.