P0639 Code - Throttle Actuator Control Range/Performance Bank 2

What Does P0639 Mean?

This code indicates that the PCM (or one of the other supporting control modules) has detected a malfunction in the throttle actuator control. These control modules may include (but are not limited to) the transmission control module, the body control module, the antilock brake control module, the instrument panel control module, the fuel injection control module, the turbo control module, the anti-theft module, the cruise control module, the traction control module, proximity alert module, and the climate control module. “Bank 2” typically refers to the bank of the engine which does not contain the number one cylinder. Consult the manufacturer’s service manual (or equivalent) for the location of the number one cylinder.

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What are the common causes of P0639 ?

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

How do you troubleshoot P0639 ?

To fix and clear a P0639 trouble code, a mechanic must perform the following repairs:
Replace any faulty or damaged wiring, connectors, or components.
Replace the throttle actuator motor if faulty.
In addition to the throttle actuator motor, most likely the mechanic also needs to replace the entire throttle body, including the throttle position sensor.
If recommended by the manufacturer when replacing the throttle body, the mechanic should replace the pedal sensor.
Replace any faulty control modules.
Reconnect or replace any loose, corroded, or damaged electrical connectors.
Replace any defective wiring within the CAN Bus harness.

Searches related to P0639 Code - Throttle Actuator Control Range/Performance Bank 2

• P0639
• P0640