P1633 Fault Code
You can find information about the P1633 fault code on this page.
BE WARNED! This particular code can mean a different thing depending on what make the car is, check below.
Manufacturer-Specific Meanings

Jaguar P1633
"Engine control module (ECM) – central processor malfunction"

Audi P1633
"Accelera.Pedal Pos.Sensor"

BMW P1633
"Throttle Valve Adaptation; Limp Home Position"

Kia P1633
"Battery Overcharge."

Lexus P1633
"ECM Malfunction (ETCS Circuit)"

Chrysler P1633
"Battery Overcharge Fault"

Toyota P1633
"ECM."

Volkswagen P1633
"Accelerator Pedal Position Sensor 2 Signal Too Low"
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