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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 489 (CRUISE CONTROL SYSTEM)DESCRIPTION AND OPERATIONCRUISE CONTROL DESCRIPTION AND OPERATIONCRUISE CONTROL DISENGAGED
2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Cruise Control Disengaged

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Cruise Control Disengaged
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

The cruise control module disengages the cruise control operation based on the signals from the following switches:

  • The On/Off switch
  • The clutch start switch
  • The stop lamp switch
  • The TCC brake switch

The stop lamp switch, the TCC brake switch, and the clutch start switch are used to disengage the cruise control. The stop lamp switch and the TCC brake switch are incorporated into an assembly and are mounted to the brake pedal bracket. When the cruise control is engaged and the brake pedal is depressed, the normally closed TCC brake switch opens and the normally open stop lamp switch closes. The cruise control module detects a low signal voltage on the TCC brake/cruise control release signal circuit and a high voltage signal on the center high mounted stop lamp (CHMSL) supply voltage/stop lamp supply voltage circuit. When the clutch pedal is depressed, the normally closed clutch start switch opens and the cruise control module detects a low voltage signal on the CPP switch signal circuit. When the cruise control On/Off switch is switched to Off, the cruise control module detects a low voltage signal on the cruise control on switch signal circuit. The vehicle speed stored in the memory of the cruise control module will be erased when the cruise control On/Off switch is turned to Off, or the ignition switch is turned off.

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