P0638 OBD-II Trouble Code: Throttle Actuator Control Range// Mitsubishi Triton 4×4

P0638 OBD-II Trouble Code: Throttle Actuator Control Range/Performance (Bank 1)

Error Code P0638 is defined as Throttle Actuator Control Range/Performance (Bank 1)
The throttle body is spring actuated that holds an open position in the event of a motor failure, in some cases, with complete failure, the throttle will be unresponsive, rendering the vehicle to move only at slow speed.
How To Correct P0638 Throttle Actuator Control Range/Performance (Bank 1)
Try cleaning the throttle body and its related wiring and harnesses. If it does not solve the problem check and replace the faulty parts.
Repair, clean or replace bad throttle body connections.
Try fixing the throttle body wiring system.P0638 Mitsubishi Throttle Actuator Control Range/Performance
Dirty or clogged throttle body can triggered the P0638 Mitsubishi code.
Possible causes
– Drive-by-wire control system malfunction
– Throttle actuator malfunction
– Throttle valve malfunction
– PCM malfunction
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