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TuningBot DTC Database · v4.37.15

P0638 Throttle Actuator Control Range/Performance (Bank 1)

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P0638 means

P0638
Throttle Actuator Control Range/Performance (Bank 1) Generic · engine Data confidence 90%

The control module judged the Throttle Actuator Control behaviour implausible for the current operating conditions.

Possible causes

  • Basic setting not carried out (if applicable)
  • ISC actuator/throttle motor
  • APP sensor

Related and nearby codes

How to read P0638

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

638

Specific fault index within the subsystem.

Frequently asked questions about P0638

What does P0638 mean?

Throttle Actuator Control Range/Performance (Bank 1). The control module judged the Throttle Actuator Control behaviour implausible for the current operating conditions.

Is P0638 generic or manufacturer-specific?

P0638 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0638 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

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