PowertrainP1662

Caution

Severity: Caution - get it checked when you can

Receive error, serial interface

22 brands affected · Description from BMW 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 22

Brand	Code	Description	System
Ashok Leyland CV	P1662	Clutch Switch. Short Circuit To Ground Brand	Powertrain
Mercedes-Benz	P1662	No description available	Powertrain
BMW	P1662	Receive error, serial interface Brand	Powertrain
BYD	P1662	Multi-circuit valve circuit short to ground Brand	Powertrain
Chery	P1662	ADC test error Brand	Powertrain
Daewoo	P1662	EDU_EN Output Circ Brand	Powertrain
DFFS	P1662	Electronic Parking Brake (EPB) switch indicator lamp short circuit to ground Brand	Powertrain
DFXK	P1662	Coolant Fan Control 2: Short to Ground Brand	Powertrain
EOBD	P1662	Cruiselamp Brand	Powertrain
Geely	P1662	Coolant Fan Control 2: Short to Ground Brand	Powertrain
GM	P1662	EDU_EN Output Circ Brand	Powertrain
Great Wall	P1662	Analog to digital converter (ADC) test fault Brand	Powertrain
Holden	P1662	No description available	Powertrain
Isuzu	P1662	No description available	Powertrain
Land Rover	P1662	EDU_EN Output Circuit Brand	Powertrain
Mahindra	P1662	No description available	Powertrain
Peugeot	P1662	No description available	Powertrain
Porsche	P1662	No description available	Powertrain
Saab	P1662	EDU_EN Output Circ Brand	Powertrain
Sprinter	P1662	ENV_ _Datum2 Brand	Powertrain
Tata	P1662	No description available	Powertrain
Toyota	P1662	Cruise control telltale circuit high voltage 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 P166xx codes.