Red light is on….we have no idea why? A friend Connected his diagnostic tester but it keeps saying error? So he said it’s not connecting with the car computer…. What can be the reason for this not showing codes and connecting to the computer? Thanks for any help!
carol

 

I use a wifi dongle to connect to my phone..works where others have failed

 

Welcome to the forums Carol.

Any basic code reader should connect to your vehicle and read the Pxxxx (Powertrain) codes. That's a basic requirement of OBD2 compliance. However, not all diagnostics testers are Jaguar compatible and some will not connect. What are you trying to use?

Although US members used to mention having codes read (free) at Pep Boys, I haven't read this for a while so this may no longer be available. Any member 6000 miles nearer to you than me should be able to advise on this.

Graham

 

Advance Auto parts, AutoZone, Pep Boys all will read codes free of charge if you can get it there. As Graham asked - what type of reader is your friend trying to use as some are not jag friendly

 

I think the power supply to the ODB socket may have it's own fuse. If so, maybe it's blown.

 

Carol,
Do check the fuse. O’ Reilly and Advanced Auto near me offer the service or allow you to connect their readers and then review results with you. Call the nearest parts place and ask.
Good luck!!

 

I've been thru this. My Innova 3100 reader (and another reader) powered up fine. Display was visible (Errr) but couldn't get anything. Did the fuse, manipulated the wiring, cleaned connections. Had a Jag shop do the scan. They got C1095 (and misfires in 3 cylinders). Redid the defective ABS module. Because it's on the CAN, apparently disrupted the scan. I can now pull codes (using the Innova). Good luck. Hope it's an easy fix!

 

Thanks so much for the suggestions , I will got to the parts places tomorrow as suggested and try the other ideas that were sent ! Thanks so much, really appreciate the help!!!
Carol

 

I work in Walnut Creek during the day. I can bring my Jag code reader with me one day and we can see what you have.

 

I really appreciate your offer!! Let me know how we can arrange that…. Let me know how we can arrange that and
how I can contact you!,thanks so much!
carol

 

PM Sent.

 

Let us know how it goes. Always like a good mystery !