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 C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1428 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESVIDEO ENTERTAINMENT SYSTEM WIRELESS HEADPHONE MALFUNCTIONCIRCUIT/SYSTEM TESTING
2006 Chevrolet Suburban C2500, 6.0 U
Circuit/System Testing
2006 Chevrolet Suburban C2500, 6.0 USECTION Circuit/System 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 infrared transmitter.
- Test for less than 5.0 ohms between the ground circuit terminal 12 and ground.
- If greater than specified range, test the ground circuit for an open/high resistance.
- Ignition ON, DVD playing, test for B+ between the infra red module control circuit terminal 4 and ground.
- If less than specified value, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the rear seat audio module.
- Ignition ON, DVD playing, test for AC voltage between the following signal circuit terminals listed below and ground.
- Left DVD audio signal (+) - terminal 1
- DVD audio common (-) - terminal 2
- Right DVD audio signal (+) - terminal 3
- If AC voltage is not present, test the signal circuit for a short to voltage, short to ground, or an open/high resistance. If the circuit tests normal, replace the radio.
- Ignition ON, RSA ON, test for AC voltage between the following signal circuit terminals listed below and ground.
- Left infra red audio signal (+) - terminal 9
- Infra red audio low reference (-) - terminal 10
- Right infra red audio signal (+) - terminal 11
- If AC voltage is not present, test the signal circuit for a short to voltage, short to ground, or an open/high resistance. If the circuit tests normal, replace the RSA.
- If all circuits test normal, test or replace the infrared transmitter.
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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.