Suddenly shift during drive to third gear then stop

Tiny
THAER
  • MEMBER
  • 2011 KIA SPORTAGE
  • 2.0L
  • 4 CYL
  • AUTOMATIC
  • 100 MILES
Try to start no crank then after I disconnected battery lead the car cranks but not starting. I am try to connect scan tool but all time I try it gives me no communication. And now sometimes crank but no starting and sometimes no crank just the dashboard on. Check engine light off all time not came on when dashboard on. Thanks for your time. Engine 2000cc Doch.
Sunday, February 2nd, 2020 AT 11:34 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

Since this seems to be an electrical issue, I was always taught to start at the source. First, are the battery terminals clean and tight?

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

Next, I need you to check pin 16 in the data link connector (scanner connector) for 12v power. It should have power at all times. See picture 1.

Now, I would like to go through schematics related to starting, but I need to know if you have a push button (smart key) or not.

Let me know.

Joe
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Sunday, February 2nd, 2020 AT 7:43 PM
Tiny
THAER
  • MEMBER
  • 2 POSTS
Hi and thanks for help sir.
My battery is in good condition and I clean and tighten the battery lead good
About obd2 I can to enter for body control ABS, airbag, but my scan tool not communication with engine and transmission ECU. They in the same control box in this car for sure I have 12 v dc in pin 16. I am check for voltage in spark plug no power and no power in fuel injector plugs. I feel that my engine and transmission control unit failure. What you think sir? Thanks so much for your help.
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Sunday, February 2nd, 2020 AT 9:22 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

It's possible, but unlikely that both have failed at the same time. Have you confirmed both a chassis ground on pic 4 and a signal ground on pin 5? Have you checked fuses?

Let me know.

Joe
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Monday, February 3rd, 2020 AT 8:38 PM

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