How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Roger Your Own Question
Roger
Roger, BMW Master Tech
Category: BMW
Satisfied Customers: 3045
Experience:  10 yrs. experience as BMW Master Technician, shop foreman and dealer.
8631066
Type Your BMW Question Here...
Roger is online now
A new question is answered every 9 seconds

I have a 1998 bmw 740il that the obd2 scan creator C310 it

Customer Question

I have a 1998 bmw 740il that the obd2 scan creator C310 it power up but when prompted to scan for codes it tries for a few seconds and the says unable to communicate make sure key on I checked the 20 pin cap is on and tight also checked the fuses in the trunk and under the hood
JA: Most vehicles have two fuse panels. Have you located both?
Customer: yes in the trunk and under the hood
JA: Are you fixing your 740il yourself? What have you tried so far?
Customer: yes I checked the fuses and made sure the 20 pin cap was installed under the hood
JA: Anything else you want the mechanic to know before I connect you?
Customer: that's it
Submitted: 1 month ago.
Category: BMW
Expert:  Steve replied 1 month ago.
Have you tried a second scan tool?
Customer: replied 1 month ago.
I took it to the emission placed and it failed to communicate with two test stands
Customer: replied 1 month ago.
Okay so what should I look for?