Body Electrical System

Transmitter Repair Procedures

22steps
~132min
5/5difficulty
Done 0 of 22

Inspection

  1. Make sure the red indicator blinks when the door lock or unlock button on the transmitter is pressed.
  2. If the red indicator does not blink, remove the battery and check the voltage.

    Standard voltage: 3 V

  3. Insert the battery (A) into the tester (09954-2P100).
  4. Press the check button. If "0.00" is displayed on the screen, the battery voltage is 2 V or less.
  5. If "L" is displayed on the screen, the battery is discharged and must be replaced.
  6. To prevent electrical discharge, turn off the power to the tester.
  7. If the voltage is low, replace the transmitter battery with a new one. Then try to lock and unlock the doors using the transmitter by pressing the lock or unlock button five or six times.
  8. If the doors lock and unlock, the transmitter is normal. If the doors do not lock or unlock, register the transmitter code, then try to lock and unlock the doors.
  9. If the doors lock and unlock, the transmitter is normal. If the doors do not lock or unlock, replace the transmitter.

Transmitter Code Registration (Using Code Saver)

  1. Open the door.
  2. Connect POWER (B+) and GND, and the Code Saver signal line.
  3. If the connection is normal, the signal line is activated and the RED LED turns on.
  4. If the Code Saver software is on, data will be transmitted through the signal line.
  5. The BCM enters code saving mode when it receives data from the code saver device and sends the code saving start signal through the signal line.
  6. The Code Saver turns on the GREEN LED when it receives the code saving start signal.
  7. When you press the lock or unlock button on the transmitter, the BCM saves the codes.
  8. If there are 2 transmitters to save codes, register them by performing step 7).
  9. If the Code Saver software is turned off or disconnected, the Code Saver mode will end.

Transmitter Code Registration (Using GDS)

  1. Connect the GDS DLC cable to the data link connector (16-pin) on the lower driver's side instrument panel, then turn on the GDS.
  2. Select the vehicle model, then perform "CODE SAVER".
  3. After selecting the "CODE SAVER" menu, press the "ENTER" button. The screen shown below will appear.
  4. After removing the ignition key from the key cylinder, press the "ENTER" key to move to the next code saving mode. Perform steps 1 through 4. Code saving is then complete.

Test yourself

A quick Hyundai Tucson LM quiz: every answer comes with an explanation and a link to the manual page.