Technical Definition:

Throttle Actuator Control Range / Performance (Bank 1)

Trouble Code: P0638
Address: 0x0638
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Throttle Actuator Control Range/Performance Bank 1

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Drive-by-wire control system malfunction
– Throttle actuator malfunction
– Throttle valve malfunction
– PCM malfunction

Specific Makes:

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