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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 672 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESONSTAR ONE OR MORE BUTTONS INOPERATIVECOMPONENT TESTING
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Component Testing
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Component Testing
WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. 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 black phone 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 2.7 K - 3.3 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.
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.