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Home >> Oldsmobile >> 1998 >> Regency >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Systems Tests W/Codes >> Diagnostic Trouble Codes >> DTC P1662 - Cruise Control Inhibit Circuit >> Circuit Description
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Circuit Description

Quad Driver Modules (QDM) are used by PCM to turn on current-driven devices needed to control various engine and transaxle functions. Each ODM can control up to 7 outputs, including cruise inhibit driver circuit, by supplying ground to device PCM is commanding on. ODMs can diagnose each circuit individually. If ODM detects an improper voltage level in output circuit controlling the stepper motor cruise control inhibit circuit, DTC will set.

Conditions for setting this DTC: