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Home >> Cadillac >> 2003 >> CTS Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P2176: Minimum Throttle Position Not Detected >> Description
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DTC P2176: Minimum Throttle Position Not Detected: Description

The Engine Control Module (ECM) controls the throttle blades by applying a varying voltage to the throttle valve motor. The ECM monitors the actual throttle blade position using Throttle Position (TP) sensor 1 and 2. If the ECM cannot detect the minimum throttle position, DTC P2176 sets.