When Vehicle Communication Interface (V.C.I.) MB991824 is NOT used

Check that the doors lock normally when the key is used.
Insert the ignition key.
CAUTION: Before connecting or disconnecting data link connector terminal 1 from/to body ground, turn the ignition switch to the "LOCK" (OFF) position.
Use special tool MB991529 to ground data link connector terminal 1.
NOTE: The ETACS-ECU will be ready to register the encrypted code by grounding data link connector terminal 1.

Fig 1: Using Special Tool To Ground Data Link Connector Terminal
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 2: Identifying Hazard Warning Switch Encryption Code
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Press the hazard warning light switch six times within 10 seconds.
NOTE: When the hazard warning light switch has been pressed six times, the ETACS-ECU locks and unlocks the doors and the liftgate automatically once. The ETACS-ECU is ready to register an encrypted code.

NOTE: The hazard warning light switch is a toggle switch.
Press the transmitter switch, and then press it two times within 10 seconds of the first press. This will register the code.
When the encrypted code has been registered, the ETACS-ECU locks and unlocks the doors and the liftgate automatically once.
If you are using two or more transmitters or have added a second transmitter, the same registration procedure should be carried out within one minute after completing step 4.
Check whether the transmitter encrypted code has been registered in the ETACS-ECU.
Connect a test light (12 V-3.4 W to 12 V-7.0 W) between terminals 9 (ETACS terminal) and 4 or 5 (ground terminal) of the data link connector via special tool MB991529. When the transmitter lock or unlock switch is pressed, the test light should illuminate once.

NOTE: If the test light does not illuminate, the transmitter encrypted code has not been registered yet. Register the encrypted code again.

NOTE: If the code registration is difficult, refer to SWS DIAGNOSIS .

Fig 3: Connecting Test Light Terminals
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Registration mode will be canceled under the following conditions:
- When the secret code for four transmitters has been registered;
- When one minute has passed after registration mode started;
- When data link connector terminal 1 is disconnected from body ground
- When the key is removed from the key cylinder;
After the registration is completed, remove the ignition key and close all the doors and the liftgate, and then check that the keyless entry system operates normally.