Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2002AVALANCHE 2500, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 622 (CRUISE CONTROL SYSTEM)
2002 Chevrolet Avalanche 2500, RWD
Section 622 (Cruise Control System)
2002 Chevrolet Avalanche 2500, RWDSECTION Section 622 (Cruise Control System)
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic & Routing Diagrams
- Component Locator
- Diagnostic Information & Procedures
- Diagnostic Starting Point - Cruise Control
- Diagnostic System Check - Cruise Control
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions (Cruise Control)
- Diagnostic Trouble Code (DTC) List
- DTC P0567: TAC Module Detects The Resume/Accel Switch Is ON
- DTC P0568: TAC Module Detects The Set/Coast Switch Is ON
- DTC P0571: TCC Brake Switch Circuit Voltage High
- DTC P1574: Vehicle Speed Decreases Without Stop Lamp Switch Transition
- Symptoms - Cruise Control
- Cruise Control Indicator Always On
- Cruise Control Indicator Inoperative
- Cruise Control Inoperative/Malfunctioning (4.3L, 4.8L, 5.3L & 6.0L Without ETC)
- Cruise Control Inoperative/Malfunctioning (6.0L & 8.1L With ETC)
- Cruise Control Inoperative/Malfunctioning (Diesel)
- Repair Instructions
- Description & Operation
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.