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Home >> Saturn >> 2007 >> Ion Red Line >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P1587 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Saturn Ion Red Line, 2004 Saturn Ion 3, 2004 Saturn Ion 2, and 2004 Saturn Ion 1. However, it is still accessible from the selected car via links, so may be relevant.

The cruise control clutch is used to engage and release the cruise control cable drive mechanism from the cruise control motor. To command the clutch ON, engaged, the engine control module (ECM) provides ground to the cruise control module via the Cruise Control Servo Clutch Control circuit. When the cruise control clutch is commanded OFF, disengaged, the feedback voltage at the ECM should be high. If the cruise control clutch is commanded OFF, and the feedback voltage on the Cruise Control Servo Clutch Control circuit is low, DTC P1587 will set indicating a short to ground or open exists.

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