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 MANUALSCHEVROLET2006SUBURBAN C1500, 5.3 ZREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1174 (CRUISE CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESCRUISE CONTROL INDICATOR MALFUNCTION (SWITCH INDICATOR MALFUNCTION)COMPONENT TESTING
2006 Chevrolet Suburban C1500, 5.3 Z
Component Testing
2006 Chevrolet Suburban C1500, 5.3 ZSECTION Component Testing
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Refer to SIR Caution
.
Disable the inflatable restraint steering wheel module when performing this diagnostic. Refer to SIR Disabling and Enabling .
IMPORTANT:
The cruise control switch must be ON in order to properly test the switch indicator.
- Ignition OFF, remove the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
- Remove the steering wheel cruise control switch. Refer to Steering Wheel Control Switch Assembly Replacement .
- Turn the cruise control switch ON. Connect a DMM positive lead to terminal 1 and the negative lead to terminal 9 of the cruise control switch and measure the resistance. Verify the meter reading indicates continuity.
- If the reading indicates an open circuit, replace the cruise control switch assembly.
- Connect the DMM positive lead to terminal 9 and the negative lead to terminal 1 of the cruise control switch and measure the resistance. Verify the meter reading indicates an open circuit.
- If the reading is not as specified, replace the cruise control switch assembly.
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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.