P0638 Chrysler Throttle Actuator Control Range/Performance

P0638 Chrysler Throttle Actuator Control Range/Performance

Possible causes
– Drive-by-wire control system malfunction
– Throttle actuator malfunction
– Throttle valve malfunction
– PCM malfunction
Tech description
Dirty or clogged throttle body can triggered the P0638 Chrysler code. Before replacing any parts try cleaning the throttle body and reset the engine light.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0638 Chrysler Description

The Powertrain Control Module (PCM) compares the actual Throttle Possition (TP) with the target TP when the engine is running. If the difference is more than the specification, the PCM determines that there is a throttle actuator control circuit range/performance problem.

Chrysler Vehicle:Chrysler 200,Chrysler 300,Chrysler 300M,Chrysler Crossfire,Chrysler PT Cruiser,Chrysler Town & Country,Chrysler Voyager