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Circuit/System Testing

  1. Verify that the transmitter is the correct transmitter for the vehicle.
    • If not the correct transmitter, replace the transmitter.
  2. Place the transmitter on the test pad of the J 43241  Keyless Entry Tester and press each transmitter button one at a time, holding each button for three seconds. The tester should sound a tone and illuminate a green light for the entire three second button press.
    • If one or more buttons does not sound the tone and illuminate the green light for the entire three seconds, replace the transmitter battery and retest with the J 43241  Keyless Entry Tester. If the condition continues after battery replacement, replace the transmitter.
  3. Operate the transmitter while observing the scan tool Fob Function parameter for the appropriate transmitter. The parameter should correspond with the function selected on the transmitter.
    • If the parameter does not match the function selected on the transmitter, replace the transmitter and retest. If the conditions continues after transmitter replacement, replace the RCDLR.