OBD 2 not communicating

MMW

MEMBER
2003 CHEVROLET TRUCK
2.2L
4 CYL
MANUAL
260,000 MILES

While connecting the OBD2 to my phone it works on Mercedes and Subaru but wont connect to Chevrolet.

Monday, January 6th, 2020 AT 8:43 AM

3 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good morning,

Why are you connecting it to your OBD connector? Did you check pin 16 for voltage? Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Roy

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Monday, January 6th, 2020 AT 8:49 AM

JKELLY383

MEMBER
2 POSTS
CHEVROLET TRUCK

I plug the scanner in and all I get is a link error.I used my neighbors and get the same thing. Any ideas why I can't scan the pcm?

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Saturday, October 10th, 2020 AT 9:36 AM (Merged)

BACKYARDMECHANIC

MECHANIC
337 POSTS

Check the Data link connector for any defects or loose wires. This is the plug that the scanner plugs into under the dash. You are getting the error code because you do not have a proper connection. I highly doubt that both yours and your neighbors link cable for the scanner is bad. Did you used ths same cable with both scanners? If so try a different cable and see if you still get the error code Good luck

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Saturday, October 10th, 2020 AT 9:36 AM (Merged)