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Home >> BMW >> 2012 >> 760Li >> Repair and Diagnosis >> Engine Performance >> System >> Self Diagnosis - N74 - Diagnostic Trouble Codes - DTC P1638 (BMW DTC 100001) Through DTC P140E (BMW DTC 110008) >> DTC P1638; BMW DTC 100001: Throttle valve, function: jammed briefly >> Fault description

Fault description

The diagnostic function monitors the throttle valve's PWM signal and recognizes this when the throttle valve sticks.

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