Vehicle Make

1996 Chevrolet Astro Remote Programming instructions

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Shear These Programming Instructions

1. Locate the Data Link Port. It is located under dash drivers side. Be sure you know which
are 8 and 4.

(Notice port is wider on top row)

Make sure there are metal contact pins in terminals 8 and 4. Connect 8 to 4 with a
jumper wire (leave the jumper wire connected throughout the programming
procedure). Make
sure you know which terminals are 8 and 4. The vehicle will
respond by locking and unlocking the
doors to signify entering of programming mode.

3. Press and hold both the LOCK and UNLOCK buttons together on the first transmitter to
programmed. After about 15 seconds, the
vehicle will respond by locking and
unlocking the doors.
Release the buttons on the transmitter.

4. Within one minute, repeat the previous step on the remaining transmitters to be

Remove jumper wire applied to the OBDII port.