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ECU Location and replacement?

Tiny
REALESTATEBROKER1
  • MEMBER
  • 2011 HONDA CRV
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 150 MILES
Can anyone please tell me where my Engine Computer Control Module is located on my vehicle? Thanks!
Tuesday, September 17th, 2019 AT 3:31 PM

14 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

It is located right next to the battery by the fuse box.

I attached a picture for you to view.

Roy
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Tuesday, September 17th, 2019 AT 4:38 PM
Tiny
REALESTATEBROKER1
  • MEMBER
  • 8 POSTS
Thank you very much for your time and insight, I appreciate that. Gracias!
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Tuesday, September 17th, 2019 AT 4:53 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Tuesday, September 17th, 2019 AT 5:27 PM
Tiny
JOHN702
  • MEMBER
  • 2 POSTS
  • 2002 HONDA CRV
  • 2.4L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 250,000 MILES
I need to remove the ECU for repair and need to know where it is located.
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Wednesday, December 30th, 2020 AT 11:11 AM (Merged)
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
I attached the info requested. Let us know if you need more info. Thanks
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Wednesday, December 30th, 2020 AT 11:11 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

It is behind the glove box. I attached the procedure and a picture for you.

Why are you replacing it?

Roy

How to Remove the ECM/PCM for Testing

If the inspection for a trouble code requires voltage or resistance checks at the ECM/PCM connectors, remove the ECM/PCM and test it:

1. Remove glove box.

ImageOpen In New TabZoom/Print

2. Disconnect the gray 20P ECM/PCM wire harness connector, and remove it from the ECM/PCM mounting bracket. Disconnect the 7P mode control motor connector. Remove PGM-FI main relay 2 (A). Remove the ECM/PCM mounting bolt (B) and the bracket.
3. Remove the nuts, then remove the ECM/PCM (C).
4. Install the ECM/PCM in the reverse order of removal.
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Wednesday, December 30th, 2020 AT 11:12 AM (Merged)
Tiny
PROBLEMAS
  • MEMBER
  • 1 POST
  • 1998 HONDA CRV
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
How I can replace and where is located the ecm(engine control module)?
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Wednesday, December 30th, 2020 AT 11:12 AM (Merged)
Tiny
STEVEW84
  • MECHANIC
  • 673 POSTS
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.


https://www.2carpros.com/forum/automotive_pictures/170495_ecm_location_1.jpg


Probably just a few bolts hold it in.
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Wednesday, December 30th, 2020 AT 11:12 AM (Merged)
Tiny
LEEANN DUNGAN
  • MEMBER
  • 12 POSTS
  • 2004 HONDA CRV
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 60,000 MILES
Is it very expensive to replace the main computer?
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Wednesday, December 30th, 2020 AT 11:12 AM (Merged)
Tiny
STEVE W.
  • MECHANIC
  • 13,414 POSTS
It can be. It would depend on where you bought it and who installed it. It looks like there are 4 possible part numbers for that vehicle, and they all run around $800.00 for new ones. You would need the same part number that you have in it, which should be on the tag on the current part. With that number you might find a used one online for less. Both would need to be programmed to match your vehicle though.
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Wednesday, December 30th, 2020 AT 11:12 AM (Merged)
Tiny
STEVEN PATTON
  • MEMBER
  • 2 POSTS
  • 1999 HONDA CRV
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 1,000 MILES
Check engine light came on, now car runs poorly especially in cold temperatures. It's not misfiring, it's just real weak. Putting it in D3 it almost won't move, so I have to put it in D1 to drive until the engine warms up enough and then I can shift to D3. My local mechanic said their diagnostic computer shows code 1607 which is for the ECU/PCM.

My question is, if the part is as easy to replace as I've seen online, does it have to be reprogrammed after it's installed? Or is it just a simple plug and play so long as the replacement part is an identical match? If it's easy to replace myself, I'd like to avoid paying the mechanic hundreds to do it if I can. Appreciate your insight!
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Wednesday, December 30th, 2020 AT 11:12 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

Yes, it is a code for the ECM. You need to replace it.

It is located at the right kick panel. You will need a new one and yes, it has to be programmed to your car.

Roy
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Wednesday, December 30th, 2020 AT 11:12 AM (Merged)
Tiny
STEVEN PATTON
  • MEMBER
  • 2 POSTS
Okay. Exactly what I needed to know. Thanks for your insight!
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Wednesday, December 30th, 2020 AT 11:12 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome.

Always glad to help.

Roy
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Wednesday, December 30th, 2020 AT 11:12 AM (Merged)

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