No CPU connection to OBDII scanner

2010 CHEVROLET CRUZE
35,000 MILES • 1.8L • 4 CYL • 2WD • AUTOMATIC
Avatar
JAKEVI
  • MEMBER
  • 1 POST
The power light is on the OBDII adapter while plugged into the usual slot. But no ECU communication is established as shown by the bluetooth connected smartphone.
Mar 19, 2018 at 5:31 PM
Avatar
MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
you may have to reload the app that you are using, it may be a Bluetooth connectivity problem with your phone.
Mar 19, 2018 at 5:59 PM
Avatar
HARRY P
  • ✓Experienced Mechanic
  • 2,292 POSTS
Jumping in here, I just wanted to say that most of those Bluetooth OBD2 scanners are junk and do not work correctly. I have one that someone gave me and it only works on my wife's 2006 V6 Saturn Vue. It will not connect to my 2002 Blazer, or my father-in-law's 2000 Chevy Lumina. All three have no trouble connecting to my other scanner (not a Bluetooth one). The reason for this is most of those Bluetooth scanners are cheap made in China knock offs, and not the original ones.
Mar 19, 2018 at 9:09 PM
Avatar
PATENTED_REPAIR_PRO
  • ✓Experienced Mechanic
  • 1,853 POSTS
The goods ones are the ELM 327 type. I bought mine for about $15.00 from here: https://www.obdinnovations.com/
Mar 20, 2018 at 1:56 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle