P1640

Set by the manufacturer, so it means different things on different makes. 20 makes in the table below.

More codes than this one? Paste your whole scan

What P1640 means, by make 20 makes

Acura Driver 1 Input Voltage High
Audi Internal Control Module: EEPROM Error
BMW Internal Control Module (ROM/RAM) Error
Chevrolet Driver-1-Input High Voltage
Chrysler Glow Plug Auxiliary Relay
Citroen Powertrain DTCs Available in Another Module
Dodge Glow Plug Auxiliary Relay
Ford Powertrain DTCs Available in Another Module
Honda ACTTRQ Motor Torque Signal Circuit Low Input
Isuzu ODM Output ??A?? Circuit Fault (1998 Rodeo)
Jeep Glow Plug Auxiliary Relay
Lincoln Powertrain DTCs Available in Another Module
Mercury Powertrain DTCs Available in Another Module
Opel Engine control module (ECM),MIURPM/fuel consumption signal (s) - circuit malfunction
Peugeot Powertrain DTCs Available in Another Module
Porsche Engine Control Module
Saab Main Relay Circuit No Voltage To Control Module Pin 1
Saturn Low Coolant/Hot/ATF Temperature Lamp Circuit Fault
Volkswagen Internal Control Module: EEPROM Error
Volvo Internal Contr. Module (EEPROM) Error

Each line is that manufacturer's own meaning for P1640. They are genuinely different faults, not rewordings of one, so a meaning listed against one make says nothing about the others. If your make is not listed, we do not hold it - your manufacturer's service information is the authority.

Code structure P1640

Powertrain

engine, transmission and emissions

Manufacturer-specific

Defined by the vehicle manufacturer, so the meaning varies between makes.

Fault index

identifies the specific fault

Powertrain Manufacturer-specific

Nearby codes in the P1 range

Manufacturer code meanings from kierandrewett/obd (b56a07a), used under the MIT licence. Copyright (c) Kieran Drewett. SpareRadar is not affiliated with the dataset's authors.