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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 315 (CRUISE CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESCRUISE CONTROL INOPERATIVE/MALFUNCTIONINGTEST DESCRIPTION
2006 Chevrolet Suburban K2500, 6.0 U

Test description

2006 Chevrolet Suburban K2500, 6.0 USECTION Test description
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. This step tests the cruise control set/coast switch signal circuit for an open or for a high resistance.
  2. This step tests the cruise control resume/accel switch signal circuit for an open or for a high resistance.
  3. This step tests the ignition 3 voltage circuit for an open, for a short to ground, or for a high resistance.
  4. DTCs will set in the PCM when you perform this table.
Fig 1: Diagnostic System Check - Cruise Control Inoperative/Malfunctioning (1 Of 3)
G01458388Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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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.