Link error and no check engine light/MIL

Tiny
CATAFINA
  • MECHANIC
  • 2008 MITSUBISHI OUTLANDER
  • 2.4L
  • 74,000 MILES
Check engine light will not light up when ignition turn on. Also hooked up scanner and read "Link Error". Try resetting ECU few times still the same issue.
Thursday, November 1st, 2018 AT 8:18 PM

8 Replies

Tiny
MOTOR MASTER
  • MECHANIC
  • 279 POSTS
Hello my name is Dave.

It sounds like you have lost one or more of the voltage feeds to the engine control module, I have attached diagrams showing the three different circuits that should be checked and a link to our tutorial on testing wiring. If any of these have lost voltage there would be no communication with the scanner.

https://www.2carpros.com/articles/how-to-check-wiring

Please note that fuses 2, 8 and 22 supply the engine control module. I hope this is helpful and if you need any further assistance we will be happy to help in any way we can and thank you for using 2CarPros.
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Friday, November 2nd, 2018 AT 10:39 AM
Tiny
CATAFINA
  • MECHANIC
  • 98 POSTS
Thank you.
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Friday, November 2nd, 2018 AT 12:46 PM
Tiny
CATAFINA
  • MECHANIC
  • 98 POSTS
I checked those fuses and jump the MPI relay. Now it is powered up but engine still won't start. Any ideas?
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Saturday, January 12th, 2019 AT 11:03 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,573 POSTS
What do you mean by "powered up"? The CEL comes on and the scan tool connects up? What does it do when you turn the key? Cranks over but doesn't start or does nothing?
Was it running okay prior to this problem?
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Wednesday, January 16th, 2019 AT 2:08 PM
Tiny
CATAFINA
  • MECHANIC
  • 98 POSTS
It does nothing-no cranking at all. I lost power to three fuses but took care of that by jumping the MPI relay, it was running before when I jump the starter it cranks over, that's it. How do I go by checking the coil/injector pulses one with three wires without a multi-meter that reads in Hertz?
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Thursday, January 17th, 2019 AT 11:40 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,573 POSTS
If it isn't turning over at all with the key the problem isn't the coils or injectors, you have a loss of power into the system that is simply not letting everything work. There are multiple power feeds into and through the ignition switch. However it sounds like you have an issue in the immobilizer system that is shutting off the ECU. When you insert the key does the security light do anything? How about when you turn the key on?
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Thursday, January 17th, 2019 AT 2:40 PM
Tiny
CATAFINA
  • MECHANIC
  • 98 POSTS
When you insert the key does the security light do anything? How about when you turn the key on? It doesn't come on when attempting start-when I lock all doors this where it's armed.
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Friday, January 18th, 2019 AT 10:25 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,573 POSTS
That sounds like the anti-theft isn't causing an issue. Instead you have a problem with either the ECU or the power feeds to it. The MPI relay turns on with a ground signal from the ECM. As it isn't getting that signal and you are getting the link error I suspect you have a bad ECM. To check that you need the OEM scan tool that can operate on both of the data line types. It can look at the data and see if the ECM is the problem.
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Tuesday, January 22nd, 2019 AT 3:07 PM

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