PowertrainP1639

Caution

Severity: Caution - get it checked when you can

Duty factor > 1s exceeded

30 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 30

Brand	Code	Description	System
Ashok Leyland CV	P1639	Charge Air Cooler Downstream Temperature SRC Low Brand	Powertrain
BAIC Motor	P1639	Vehicle ID Block corrupted, not programmed Brand	Powertrain
Mercedes-Benz	P1639	No description available	Powertrain
BMW	P1639	Duty factor > 1s exceeded Brand	Powertrain
BYD	P1639	6R gear cylinder leakage Brand	Powertrain
Chery	P1639	Accelerator Position Sensor 1 2 (G79 G185): Implausible Signal Brand	Powertrain
Daewoo	P1639	5V Ref Brand	Powertrain
DFXK	P1639	Accelerator Position Sensor 1 2 (G79 G185): Implausible Signal Brand	Powertrain
EOBD	P1639	Toiterelv Brand	Powertrain
Ford	P1639	Diagnostic Trouble Code (DTC) - P1635 And/Or Present After Powertrain Control Module (PCM) Or Instrument Cluster Replacement - Gasoline Engine Vehicles Only Brand	Powertrain
Geely	P1639	Accelerator Position Sensor 1 2 (G79 G185): Implausible Signal Brand	Powertrain
GM	P1639	No description available	Powertrain
Great Wall	P1639	Electronic control unit (ECU) inside temperature value above upper limit Brand	Powertrain
Holden	P1639	No description available	Powertrain
Honda	P1639	No description available	Powertrain
Hyundai	P1639	No description available	Powertrain
Isuzu	P1639	No description available	Powertrain
Land Rover	P1639	Vehicle identification block corrupted or not programmed Brand	Powertrain
Mahindra	P1639	No description available	Powertrain
Maserati	P1639	No description available	Powertrain
Mazda	P1639	Diagnostic Trouble Code (DTC) - P1635 And/Or Present After Powertrain Control Module (PCM) Or Instrument Cluster Replacement - Gasoline Engine Vehicles Only Brand	Powertrain
Mitsubishi	P1639	Fuel pump relay circuit open Brand	Powertrain
Peugeot	P1639	No description available	Powertrain
Porsche	P1639	No description available	Powertrain
Proton	P1639	Fuel pump relay circuit open Brand	Powertrain
Saab	P1639	5V Ref Brand	Powertrain
Sprinter	P1639	No description available	Powertrain
Suzuki	P1639	Double relay circuit open Brand	Powertrain
Tata	P1639	Tank Solenoid Valve Control Brand	Powertrain
Volkswagen	P1639	No description available	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 3

These 7-character codes are manufacturer-specific variants of P1639 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P163900	Short circuit to battery error Brand	Powertrain
Sprinter	P163900	Short circuit to battery error Brand	Powertrain
SsangYong	P163900	TCU internal fault (RAM CAN controller 2) Brand	Powertrain

6Related codes

Browse Pxxx codes or P163xx codes.