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HOMESERVICE MANUALSISUZU2006ASCENDER S, 5.3 M, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 189 (KEYLESS ENTRY SYSTEM AND REMOTE FUNCTIONS)DIAGNOSTIC INFORMATION AND PROCEDURESGARAGE DOOR OPENER INOPERATIVECIRCUIT/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 2007 Isuzu Ascender, 2007 GMC Envoy, 2007 Chevrolet TrailBlazer, and 2007 Buick Rainier. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, valet switch OFF, if equipped. Press each button of the GDO one at a time. The LED on the GDO should illuminate with each button pressed.
    • If none of the buttons respond, test the battery positive voltage circuit and the ground circuit for an open/high resistance. If the circuits test normal, replace the GDO.
  2. Ignition ON, hold the 2 outer buttons on the GDO until the LED on the GDO stops flashing. Place the J 41540  Homelink Tester adjacent to the GDO and press each button of the GDO one at a time. The tester should indicate when each button is pressed.
    • If the tester indicates that one or more of the buttons does not respond, replace the GDO.
  3. Program the GDO with the customers remote. A possible rolling code or incompatibility with the GDO receiver will prevent programming. Refer to Homelink at 1-800-355-3515.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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