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, 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 447 (CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIGITAL RADIO MALFUNCTIONCIRCUIT/SYSTEM TESTINGDIGITAL RADIO SIGNAL CIRCUIT MALFUNCTION
2006 Isuzu Ascender S, 4.2 S, 4WD
Digital Radio Signal Circuit Malfunction
2006 Isuzu Ascender S, 4.2 S, 4WDSECTION Digital Radio Signal Circuit Malfunction
WARNING: This page is about a different car, the 2008 Pontiac Torrent and 2008 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the X2 harness connector at the radio.
- Radio ON, test for 5.0-7.5 volts between the signal circuit terminal 1 and ground.
- If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the DRR.
- If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the DRR.
- Test for 5.0-7.5 volts between the signal circuit terminal 2 and ground.
- If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the DRR.
- If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the DRR.
- Test for 5.0-7.5 volts between the signal circuit terminal 9 and ground.
- If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the DRR.
- If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the DRR.
- Test for 5.0-7.5 volts between the signal circuit terminal 10 and ground.
- If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the DRR.
- If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the DRR.
- If all circuits test normal, replace the radio.
RENDER: 1.0x
NO RELATED
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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.