P1637

Set by the manufacturer, so it means different things on different makes. 15 makes in the table below.

More codes than this one? Paste your whole scan

What P1637 means, by make 15 makes

Audi Powertrain Data Bus, Missing Message from Electric Load Controller
BMW Throttle Valve Position Control; Control Deviation
Chevrolet Generator L-Terminal Circuit
Chrysler TCM Internal - EEPROM Performance
Citroen Can Link ECM/ABSCM Circuit/Network Malfunction
Dodge TCM Internal - EEPROM Performance
Ford Can Link ECM/ABSCM Circuit/Network Malfunction
Jaguar CAN Link ECM/ABS Control Module Circuit/Network
Jeep TCM Internal - EEPROM Performance
Kia CAN Link ECM/ABS Control Module Circuit/Network
Peugeot Can Link ECM/ABSCM Circuit/Network Malfunction
Saturn Alternator L Circuit Low Input
Toyota E(G?)STP signal Malfunction (ESTP Signal Malfunction ? Pri)
Volkswagen Powertrain Data Bus, Missing Message from Electric Load Controller
Volvo Data Bus Powertrain missing message f. central electr. control

Each line is that manufacturer's own meaning for P1637. 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 P1637

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.