PowertrainP1605

Caution

Severity: Caution - get it checked when you can

ECU processor fault

37 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 37

Brand	Code	Description	System
Ashok Leyland CV	P1605	No description available	Powertrain
BAIC Motor	P1605	Memory fault Brand	Powertrain
Mercedes-Benz	P1605	No description available	Powertrain
BMW	P1605	maximum permitted specified torque permanently exceeded Brand	Powertrain
BYD	P1605	Input shaft 1 sensor no speed Brand	Powertrain
Chery	P1605	Rough Road Acceleration Sensor: Electrical Malfunction Brand	Powertrain
Chrysler	P1605	No description available	Powertrain
Daewoo	P1605	A/T Diag Comm Line Brand	Powertrain
Daihatsu	P1605	Idle Not Stable Brand	Powertrain
DFFS	P1605	ECU processor fault Brand	Powertrain
DFFX	P1605	ECU processor failure Brand	Powertrain
DFXK	P1605	ECU processor fault Brand	Powertrain
EOBD	P1605	Codage ECM Brand	Powertrain
Ford	P1605	No description available	Powertrain
Geely	P1605	EMM Data Mismatch Brand	Powertrain
GM	P1605	A/T Diag Comm Line Brand	Powertrain
Great Wall	P1605	Engine controller fault Brand	Powertrain
Hafei	P1605	ECU system Brand	Powertrain
Holden	P1605	No description available	Powertrain
Hyundai	P1605	No description available	Powertrain
Isuzu	P1605	No description available	Powertrain
Land Rover	P1605	Transmission control module battery buffered random access memory fault Brand	Powertrain
Mahindra	P1605	No description available	Powertrain
Mazda	P1605	No description available	Powertrain
Mitsubishi	P1605	ECU system Brand	Powertrain
Nissan	P1605	A/T diagnostic communication line Brand	Powertrain
Opel	P1605	A/T Diag Comm Line Brand	Powertrain
Perodua	P1605	Idle Not Stable Brand	Powertrain
Peugeot	P1605	No description available	Powertrain
Porsche	P1605	CAN-Schnittstelle: Timeout Allrad-Botschaft Brand	Powertrain
Proton	P1605	ECU system Brand	Powertrain
Saab	P1605	A/T Diag Comm Line Brand	Powertrain
Sprinter	P1605	No description available	Powertrain
Suzuki	P1605	Communication between CY310 and µP Brand	Powertrain
Tata	P1605	ECU Memory Integrity Fault Brand	Powertrain
Toyota	P1605	ECU processor fault Brand	Powertrain
Volkswagen	P1605	Rough road/acceleration sensor: electrical malfunction 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 3

These 7-character codes are manufacturer-specific variants of P1605 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P160500	Sensor Temperatur Abgasrückführung Sensordrift Brand	Powertrain
SsangYong	P160500	Fault to indicate that the monitor module CAN not disable injector drive Brand	Powertrain
SsangYong	P160501	A flow to indicate a locking fault by the monitoring module (HP and injector) Brand	Powertrain

6Related codes

Browse Pxxx codes or P160xx codes.