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Home >> Chevrolet >> 2012 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Keyless Entry System And Remote Functions) >> Diagnostic Information and Procedures >> Garage Door Opener Malfunction >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector at the S25 garage door opener.
  2. Ignition OFF, test for less than 5 Ω 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. NOTE: This step will clear any learned transmitters from the S25 garage door opener. This will require reprogramming by the customer to reestablish universal home remote functionality.
  4. Hold the two outer buttons on the S25 garage door opener for 10 seconds. The LEDs will flash quickly indicating it has entered the diagnostic mode. Place the J 41540  adjacent to the S25 garage door opener and press each button of the universal home remote one at a time. The tester should indicate when each button is pressed.
  5. Using the Hand Held Transmitter from the J 41540  kit, program a single button on the S25 garage door opener. Verify the Programmed LED on the test tool lights with the newly programmed vehicle universal home remote. This verifies the transmitter can learn a new function.
    • If the tester indicates that one or more of the buttons does not respond, replace the S25 garage door opener.
  6. Instruct the customer to program the S25 garage door opener. Refer to the vehicle owners manual. If further malfunction occurs, a possible rolling code or incompatibility with the S25 garage door opener will prevent programming.
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