OBD11 Connector has power but cannot communicate with car.
Nov 10, 2021 at 3:17 AM
OBD 11 not communicating with car
2009 CHEVROLET TRAVERSE
BENTLEY50
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Hi,
This could be a few different things. First, have you checked for ground via pins 4 and 5? Is pin 16 providing battery voltage?
First, pic 1 is the pinout for the DLC. I highlighted pins 4 and 5. Confirm continuity to ground at those pins. Also, confirm 12v at pin 16.
If that checks good, the remaining pics are the diagnostics for no low-speed communications. Take a look through them and let me know if you are comfortable performing them.
Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-wiring
Let me know what you find or if there is anything I can do to help.
Take care,
Joe
See pics below.
This could be a few different things. First, have you checked for ground via pins 4 and 5? Is pin 16 providing battery voltage?
First, pic 1 is the pinout for the DLC. I highlighted pins 4 and 5. Confirm continuity to ground at those pins. Also, confirm 12v at pin 16.
If that checks good, the remaining pics are the diagnostics for no low-speed communications. Take a look through them and let me know if you are comfortable performing them.
Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-wiring
Let me know what you find or if there is anything I can do to help.
Take care,
Joe
See pics below.
Images (Click to enlarge)
Nov 10, 2021 at 7:38 PM
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