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Home >> Infiniti >> 2002 >> I35 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1128: Throttle Control Motor Circuit Shorted >> Description
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DTC P1128: Throttle Control Motor Circuit Shorted: Description

The throttle control motor is operated by the ECM, and it opens and closes the throttle valve. The current opening angle of the throttle valve is detected by the Throttle Position (TP) sensor, and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle properly in response to driving condition.