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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the GDO.
  2. Ignition OFF, test for less than 1.0 ohm of resistance between the ground circuit terminal 3 and ground.
    • If greater than the specified value, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify a test lamp illuminates between the B+ circuit terminal 1 and ground.
    • If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. Ignition ON, hold the 2 outer buttons on the GDO for 30 seconds. Place the J 41540  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.
  5. Program the GDO with the customers remote. A possible rolling code or incompatibility with the GDO receiver will prevent programming. Refer to www.learcar2u.com or 1-866-572-2728.
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