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 1428 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESONSTAR BUTTON MALFUNCTIONCOMPONENT 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 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the inside rearview mirror.
- Test for infinite resistance between the keypad supply voltage terminal 12 and the keypad signal terminal 11.
- If less than the specified range, replace the inside rearview mirror.
- Test for 1.4 K-1.6 K Ω between the keypad supply voltage terminal 12 and the keypad signal terminal 11 while pressing the red emergency button.
- If not within the specified range, replace the inside rearview mirror.
- Test for 2.7 K-3.3 K Ω between the keypad supply voltage terminal 12 and the keypad signal terminal 11 while pressing the blue On-Star® button.
- If not within the specified range, replace the inside rearview mirror.
- Test for 12.5 K-13.5 K Ω between the keypad supply voltage terminal 12 and the keypad signal terminal 11 while pressing the black phone button.
- If not within the specified range, replace the inside rearview mirror.
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.