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 MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 621 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM & NAVIGATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESAUDIO/VIDEO PLAYER ADAPTER - AUDIO OR VIDEO MALFUNCTIONCIRCUIT/SYSTEM TESTING
2006 Isuzu Ascender S, 5.3 M, 4WD
Circuit/System Testing
2006 Isuzu Ascender S, 5.3 M, 4WDSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2009 Pontiac Torrent and 2009 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the X3 harness connector at the radio.
- Ignition ON, test for less then 1 volt between the appropriate signal circuit terminals listed below and ground.
- Auxiliary audio left signal (+) - terminal 1
- Auxiliary audio right signal (+) - terminal 2
- Auxiliary audio drain wire (-) - terminal 9
- Auxiliary video signal (+) - terminal 8
- Auxiliary video drain wire (+) - terminal 16
- If greater then specified range, test the circuit for a short to voltage.
- Test for infinite resistance between the terminals listed below and ground.
- Auxiliary audio left signal (+) - terminal 1
- Auxiliary audio right signal (+) - terminal 2
- Auxiliary audio drain wire (-) - terminal 9
- Auxiliary video signal (+) - terminal 8
- Auxiliary video drain wire (+) - terminal 16
- If less then the specified value, test the circuit for a short to ground.
- Test for less then 5 ohm between the terminals on the radio X3 harness connector and the external terminals on the audio/video adaptor listed below:
- Auxiliary audio left signal (+) - terminal 1 and the left audio jack center terminal (white).
- Auxiliary audio right signal (+) - terminal 2 and the right audio jack center terminal (red).
- Auxiliary audio drain wire (-) - terminal 9 and the outside of both the left audio jack (white), and the right audio jack (red).
- Auxiliary video signal (+) - terminal 8 and the video jack center terminal (yellow).
- Auxiliary video drain wire (+) - terminal 16 and the outside of the video jack (yellow).
- If greater then the specified value, test the circuit for an open/high resistance. If the circuit tests normal, replace the adaptor.
- If all circuits test normal, replace the radio.
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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.