The instructions for reprogramming a key fob for a 95 Chevy Suburban says that you ground G cavity in the Data Link Connector. I've tried grounding it to the body, but I'm assuming that since that didn't work, it should be grounded to the electrical system. What would be the best ground to use in the close proximity of the DLC?

If the sending unit was connected and grounded, I would guess the gauge in the cluster is faulty.

"Connect pin 1 of the 16-way data link connector to chassis ground or to pin 4 of the 16-way data link connector."

What does this mean??????

Walk out to the vehicle with a new battery in the key fob and press the lock AND unlock button at the same time while you stand close to the vehicle for 7 seconds. You will hear the doors go thru a lock and unlock cycle, your fob is now programmed. This will sync existing programmed controllers, security sync. to program new remotes:In the trunk, connected to the wireless remote controller (driver side on wheel well, need to remove 'mat') is an empty connector with 2 wires connected. short the two connector pins. The locks will all cycle. Press and hold lock/unlock buttons on remote until locks cycle on/off. repeat for other remotes. Remove short across connector pins. Test new remote(s).Warning:existing remotes are deprogrammed, only remotes programmed will work from now on.This worked on my 1998 Cavalier. Be sure battries in new remote(s) are good! Answer Locate the data link connector under the dash (under the steering column). Ground out pin #8 of the DLC (top right port) with a jumper wire to any piece of metal close by (I use the e brake hardware). The door locks will then lock & unlock to let you know you are in the programming mode. Simultaneously press & hold the lock & unlock button on one of the keyless entries until the locks cycle (this lets you know the transmitter has been programmed). Repeat this step for your second transmitter. You must reprogram the 2nd transmitter within 60 seconds of programming the 1st one or you have to start over.
Note

Read more: http://wiki.answers.com/Q/How_do_you_program_a_keyless_remote_for_a_1996_Chevy_Tahoe_LT#ixzz1wjwEcG4s

I suggest check the right procedure in your owners manual, and keep in mind this...

Here is a quick HowTo on programming your own keyless entry:

1) Turn ignition to OFF.
2) Locate the Data Link Connector, its a black 16 pin connecter that is under the driver's side dash, right where your right knee would be. You have to look up into the dash from below to see it.
3) Ground pin 1 of the Data Link Connector by taking a wire or paper clip and running it from pin 1 to pin 4. Pin 4 is ground so you can just short pin 1 to 4 and it will be grounded. Grounding pin 1 tells the system you are ready to reprogram it.
4) Close all of your doors.
5) Turn the key to ACC then back off. The power door locks will lock/unlock. This is the signal that the system is ready for reprogramming.
6) Push a button on your key fob, doesn't matter which button.
7) If you have 2 key fobs, then press a button on the 2nd fob within 1 minute of pressing a button on the 1st fob. Both must be programmed at the same time. If you only have 1 fob then press a button 2 more times to signal that you only have one.
8) The doors will lock/unlock to signal the codes were received.
9) Remove the jumper wire from the data connector. This is the same process that I use/used to reprogram my stock key fob. It's word for word on how to do this on your Avenger/Sebring. Since it's not in my own words I used quotes and it was written (or copied) by several folks with either 2G Eclipses/Talons or Avenger/Sebrings,


Hope helps.

I bought a replacement keyless fob and these instructions came with it - and they worked. They refer to some illustrations but with Haynes manual and maybe some web searching you should be able to figure it out.

1. Turn ignition switch OFF .

2. Use a 3 amp fused jumper wire (two clip leads attached to either side of a 3 amp fuse, or a paperclip works too) and connect terminals at the data link connector as illustrated below (black wire to black/white wire). The data link connector is located on the bottom of dash panel. Connect fused jumper wire between Data Link Connector (DLC) terminals no. 8 (black/white wire) and no. 4 (black wire)

3. Close all the doors.

4. Turn ON the ignition switch.

5. The doors will lock and unlock to confirm it is in programming mode.

6. Press and hold LOCK and UNLOCK on one of the transmitters for 30 seconds.

7. After a 10-15 second delay the doors will LOCK and UNLOCK. DO NOT TURN OFF THE IGNITION!

8. Repeat step 5 for each additional transmitter. (Even transmitters that worked previously must be reprogrammed).

9. Disconnect jumper wire from data link connector.

10.Turn the ignition off and test all transmitters to verify function.

Here is a quick HowTo on programming your own keyless entry:

1) Turn ignition to OFF.
2) Locate the Data Link Connector, its a black 16 pin connecter that is under the driver's side dash, right where your right knee would be. You have to look up into the dash from below to see it.
3) Ground pin 1 of the Data Link Connector by taking a wire or paper clip and running it from pin 1 to pin 4. Pin 4 is ground so you can just short pin 1 to 4 and it will be grounded. Grounding pin 1 tells the system you are ready to reprogram it.
4) Close all of your doors.
5) Turn the key to ACC then back off. The power door locks will lock/unlock. This is the signal that the system is ready for reprogramming.
6) Push a button on your key fob, doesn't matter which button.
7) If you have 2 key fobs, then press a button on the 2nd fob within 1 minute of pressing a button on the 1st fob. Both must be programmed at the same time. If you only have 1 fob then press a button 2 more times to signal that you only have one.
8) The doors will lock/unlock to signal the codes were received.
9) Remove the jumper wire from the data connector. 10) your done

Manual Programming Procedure (non scan tool)
1. Connect pin 1 of the 16-way data link connector to chassis ground or to pin 4 of the 16-way data link connector.
2. Close all doors, turn ignition key to off.
3. Turn ignition key to Accessory.
4. Turn ignition to off, door locks will cycle once (in programming mode).
5. For each key FOB, press any button 3 times in a row to program code. When programming is complete, the door locks will cycle once.

NOTE:
IF A SECOND KEY FOB REQUIRES PROGRAMMING, IT MUST BE PROGRAMMED WITHIN 1 MINUTE OF PROGRAMMING
THE FIRST FOB PROGRAMMING. PRESS ANY BUTTON ON THE SECOND FOB 3 TIMES TO PROGRAM ITS CODE. WHEN PROGRAMMING IS COMPLETE, THE DOOR LOCKS WILL CYCLE ONCE.

6. The programming mode finishes after the following:
a. Programming of two key FOBS is completed.
b. One minute has passed since programming.
c. Pin 1 of 16-way data link connector is removed from ground connection.
d. Ignition switch is turned on.
e. Any of the doors are opened.

Here it is straight from Alldata:

1. Ground pin G of the Data Link Connector (DLC).**Bottom left pin**

• Receiver will respond by locking, and unlocking doors within 2 seconds.

1. Press any button of the first transmitter to be programmed.
2. The control module will respond by locking/unlocking doors and activating rear window release.
3. Press any button of the second transmitter to be programmed (if used).
4. The control module will respond by locking/unlocking doors and activating the rear window release.

1. Remove the ground applied to the reprogrammed connector.

1. Transmitter operation is verified locking and unlocking the doors and activating the rear window release

Here is a quick HowTo on programming your own keyless entry:

1) Turn ignition to OFF.
2) Locate the Data Link Connector, its a black 16 pin connecter that is under the driver's side dash, right where your right knee would be. You have to look up into the dash from below to see it.
3) Ground pin 1 of the Data Link Connector by taking a wire or paper clip and running it from pin 1 to pin 4. Pin 4 is ground so you can just short pin 1 to 4 and it will be grounded. Grounding pin 1 tells the system you are ready to reprogram it.
4) Close all of your doors.
5) Turn the key to ACC then back off. The power door locks will lock/unlock. This is the signal that the system is ready for reprogramming.
6) Push a button on your key fob, doesn't matter which button.
7) If you have 2 key fobs, then press a button on the 2nd fob within 1 minute of pressing a button on the 1st fob. Both must be programmed at the same time. If you only have 1 fob then press a button 2 more times to signal that you only have one.
8) The doors will lock/unlock to signal the codes were received.
9) Remove the jumper wire from the data connector.