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Home >> GMC >> 1999 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Tests W/Codes - Diesel >> Diagnostic Tests >> DTC P0567: Cruise Resume Circuit ("C", "G", "K" & "P" Series) >> Circuit Description

Circuit Description

Cruise resume/accel switch is an input to fuel control portion of PCM. Inputs allow PCM to control and hold requested speed. Cruise resume/accel switch sends ignition voltage to PCM when switch is on.

DTC will set when cruise switch is off and ignition voltage is present on resume switch signal circuit, or cruise switch is on and resume switch is on for longer than 25.5 seconds.