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 628 (FIXED & MOVEABLE WINDOW SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESPOWER WINDOWS MALFUNCTIONCIRCUIT/SYSTEM TESTINGFRONT WINDOW MALFUNCTION
2006 Isuzu Ascender S, 4.2 S, 4WD
Front Window Malfunction
2006 Isuzu Ascender S, 4.2 S, 4WDSECTION Front Window Malfunction
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 X2 harness connector at the master window switch.
- Test for less than 1 ohm between the ground circuit terminal 6 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Ignition ON, verify that a test lamp illuminates between the ignition circuit terminal 1 and ground.
- If the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance.
- Ignition OFF, connect the harness connector at the master window switch and disconnect the harness connector at the appropriate front window motor.
- Test for less than 1 ohm between the control circuit terminal listed below and ground:
- Terminal 1
- Terminal 2
- If greater than the specified range, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, test or replace the master window switch.
- Ignition ON, connect a test lamp between the control circuit terminal 1 and control circuit terminal 2.
- Command the window UP and DOWN by using the appropriate window switch on the master control. The test lamp should illuminate when commanding the UP and DOWN states.
- If the test lamp remains OFF during either of the commands, test either control circuit for a short to ground. If the circuits test normal, test for replace the master window switch.
- If all circuits test normal, test or replace the front window motor.
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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.