PowertrainP1601

Caution

Severity: Caution - get it checked when you can

ECU processor Analog/Digital Converter fault

36 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 36

Brand	Code	Description	System
Ashok Leyland CV	P1601	Hybrid Battery. Cooling Fan 3 Control Circuit Malfunction. - High Signal Brand	Powertrain
BAIC Motor	P1601	ECU information reception faulty Brand	Powertrain
Mercedes-Benz	P1601	No description available	Powertrain
BYD	P1601	Battery voltage too low Brand	Powertrain
Chery	P1601	Comm.error Brand	Powertrain
Chrysler	P1601	Internal TCM Computer Error Brand	Powertrain
Daewoo	P1601	Voltage Supply Brand	Powertrain
Daihatsu	P1601	Keyless system/immobilizer system Brand	Powertrain
DFFS	P1601	Complete gear N Brand	Powertrain
DFFX	P1601	Comm.error Brand	Powertrain
DFXK	P1601	ECM processor analog-to-digital conversion fault Brand	Powertrain
EOBD	P1601	IMA-systemfel Brand	Powertrain
Fiat	P1601	Internal TCM computer error Brand	Powertrain
Geely	P1601	Comm.error Brand	Powertrain
GM	P1601	No description available	Powertrain
Great Wall	P1601	Comm.error Brand	Powertrain
Hafei	P1601	Comm.error Brand	Powertrain
Holden	P1601	No description available	Powertrain
Honda	P1601	No description available	Powertrain
Hyundai	P1601	No description available	Powertrain
Isuzu	P1601	No description available	Powertrain
Land Rover	P1601	No description available	Powertrain
Mahindra	P1601	No description available	Powertrain
Maserati	P1601	internal Transmission Control Module (TCM) computer fault Brand	Powertrain
Mitsubishi	P1601	Comm.error Brand	Powertrain
Perodua	P1601	Keyless system/immobilizer system Brand	Powertrain
Peugeot	P1601	No description available	Powertrain
Porsche	P1601	CAN-Schnittstelle: Timeout Kombi-Botschaft Brand	Powertrain
Proton	P1601	Comm.error Brand	Powertrain
Saab	P1601	Voltage Supply Brand	Powertrain
MG (SAIC)	P1601	OPST PWM duty continuously High Level Brand	Powertrain
Smart	P1601	No description available	Powertrain
Subaru	P1601	TCU communication malfunction Brand	Powertrain
Suzuki	P1601	CAN communication problem Brand	Powertrain
Tata	P1601	CPU Or CPU Clock Brand	Powertrain
Toyota	P1601	ECU processor Analog/Digital Converter fault 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 5

These 7-character codes are manufacturer-specific variants of P1601 and may be reported by some scan tools.

Brand	Code	Description	System
Mercedes-Benz	P160100	Sensor Kühlwassertemperatur Signal im System unplausibel Brand	Powertrain
Sprinter	P160100	Sensor Kühlwassertemperatur Signal im System unplausibel Brand	Powertrain
SsangYong	P160100	ECU fault Brand	Powertrain
SsangYong	P160101	Immobilizer signal mismatch (wrong key) Brand	Powertrain
SsangYong	P160102	Immobilizer device no response Brand	Powertrain

6Related codes

Browse Pxxx codes or P160xx codes.