OBD2 Link Error comes on when scanner reads. - 1999 Pontiac Montana

No the two system operating protocols are different.

Are you fully obd1 compliant? If so, you should be able to use jumper wire at A & B terminals of your data link connector. Then turn key just till the dash lites come on, the cel starts flashing, you count the flashes to get the code, two digit number.
On older vehicles, sometimes the cel no longer works, for whatever reason. On those vehicles I use a scanner that will show live engine data, try to see if anything doesn't look correct. Just my opinion.
Is this the 94 s10?

Linking Error w/ OBDII Diagnostic scanner (unable to communicate ...

forum.mazda6club.com > ... > Electrical

Nov 16, 2010 - When I try to run the scan (initial link-up. ... the device keeps saying"Linking Error," meaning that the OBDII and diagnostic device aren't able to communicate. .... autozone and have them hook their scanner up for free to verify.

What am i doing wrong? obdII scanner hookup? - D-series.org

www.d-series.org > ... > D-series Knowledge Factory > General Tech

Sep 16, 2009 - 21 posts - ‎8 authors
well i borrowed my friends obdII scanner and im trying to check my codes but everytime is says link error? im stumped i tried it multiple times with. ... but it sounds like you may have an electrical problem somewhere. Discovery ...

"Linking Error" OBDII Comm failure ' DSMtuners

it's call dlc data link connector


hope it helps

THE MAIN POWER FOR OBD2 COME FROM CIG LIGHTER FUSE.
IF FUSE IS OK SCAN WITH DIFFERENT SCANNER.SOME TIMES CHRYSLER DON'T LIKE GENERIC SCANNERS.

You need an OBD2 scanner to read the error code. It plugs in to your car and is typically under the steering wheel. Autozone will read the error code for free.

there is no reset for an engine light. it can be turned off using a scan tool, but if the problem that brought the engine light on in the first place hasnt been corrected it will come back on anyway.

When you get that light, it tells you that your onboard computer has kicked out an error code. You will need an OBD2 scanner to read, OR you can just take it to an auto parts store and they will read the codes for you, but make sure you write down the codes in the order they come off the scanner.

That will give you a place to start.

THERE IS NO POWER IT THE OBD2 CONNECTOR.CHECK THE FUSES.IF U DON'T FIND ONE BAD U MAY HAVE A BAD PCM.

Blown power fuse for obd connecter. May be under hood or in interior fuse panel.