Using Scan Tool
- Connect Scan Tool (MB991502) to DLC. Close all doors. Turn ignition to ACC position then to OFF position. Press desired transmitter switches (secret code), then press twice within 10 seconds to register code.
- Lock and unlock door once. If there are 2 transmitters, program the first, then the second transmitter using the same procedure within one minute. After completing the second programming, lock and unlock door once.
- Programming mode is finalized when programming of second transmitter secret code is complete, one minute after setting secret code, when scan tool is disconnected, when ignition is turned on or when any door is opened.