How to Program a 1997 Chevrolet Blazer Key Fob, Keyless Entry Remote, Smart Key
Programming Instructions Step by Step:
1. Locate theData Link Port. It is located under dash drivers side. Be sure you know which pins are 8 and4.
(Note port is wider at top) YourOBDII port will nothave numbers, use this diagramfor reference.
2. Make sure there are metal contact pins in terminals 8 and4. Connect 8 to 4 with asuitablejumper wire (leave the jumper wireconnected throughout the programmingprocedure). Makesure you know which terminals are 8 and4. The vehicle will respond by locking and unlocking thedoors to signify entering of programming mode.
3. Press and hold both the LOCK and UNLOCK buttons together on the first transmitter tobeprogrammed. After about 15 seconds, the vehicle will respond by locking andunlocking the doors.Release the buttons on the transmitter.
4. Within one minute, repeat the previous step on the remaining transmitters to be programmed.
5. Remove jumper wire applied to th OBDII Port.
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