obdii scanner fails to read data

Old 10-16-2018, 05:14 PM
Rennlist Member
DLook's Avatar
Join Date: Oct 2017
Location: Fremont, CA
Posts: 40
Likes: 0
Received 0 Likes on 0 Posts

I had the same problem. I've even passed CA emissions but ODB2 data fail to read. The shop guy even said I had to drive 10K miles before the ODB2 data could be read.

Specialized ECU Repair video on youtube really saved the day:

It reads fine now. Try it.
DLook is offline  
Old 10-16-2018, 06:25 PM
Shade Tree Fixer
Rennlist Member
pp000830's Avatar
Join Date: Jul 2004
Location: Richmond, VA
Posts: 5,439
Likes: 0
Received 3 Likes on 2 Posts

Some have only had luck reading codes with the engine running. Also try cleaning the OBD socket with some spray electronic/electric motor cleaner. If the above doesn't help pull the socket and check the pin wires.
pp000830 is offline  

Thread Tools
Search this Thread
Quick Reply: obdii scanner fails to read data

Contact Us - About Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: