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 rpmdiag Your Own Question
rpmdiag, Tech and Instructor
Category: Australia Car
Satisfied Customers: 7874
Experience:  Since 1975
Type Your Australia Car Question Here...
rpmdiag is online now
A new question is answered every 9 seconds

I have my engine light keep coming on and cant seem to

Customer Question

Hi i have my engine light keep coming on and cant seem to figure out the problem. I have pit ot on the scanner and its telling me the its the TCM losing communication. So ive replaced it and it kept coming on so then replaced the transmission and also came on. Then i replaced the wiring harness and still came on. Dont no what else i should do. Would you please able to help me
Submitted: 1 year ago.
Category: Australia Car
Expert:  rpmdiag replied 1 year ago.

Hi, I’m Ron and I can help you.
I have been in this business since 1975 and also teach automotive repair. I am confident
we can resolve your problem together. Please understand that I don't know your skill
level. I can't see, smell, hear, or touch the vehicle either, so it may take a few replies to
get to satisfactory results. Please be patient!
I also try to give all of the information you may need, expecting a “positive rating” in
return. I will also continue assisting you after you have rated me, if necessary. If there
is any reason I cannot get a positive rating, please let me know why “in advance”, so I
can go another direction for you. I am sorry you’re having this problem; I’ll help you
through it.

Ok, there is a communication issue or a wiring problem that is causing this. It can even be with the main computer or gateway as it attempts to communicate with the TCM. It's possible to find this issue by pinging all the nodes with a scan tool and communicate with them all.

Thanks, Ron

Related Australia Car Questions