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Codes U0155, U12AD and U0293?

Tiny
AHMEDKASHIF
  • MEMBER
  • 2014 HONDA FIT HYBRID
  • 1.5L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 10,000 MILES
Car won’t startup using push button and I get following error codes
However, the aircon and multimedia player turn on but won’t get ignition lights and won’t get started instead the car keeps asking to press brake and push start button.

Error Codes:
U0155 F-CAN Malfunction
U12AD EPP(IMA)-CAN Malfunction
U0293 Malfunction (ECM-PCM-Motor)

Solutions I have tried are below:
Replacing new push start button.
Replacing 12v main battery.
Replaced the remote battery.
Also confirmed that when pressing brake pedal the rear brake lights turn on.

See the attached video

The car listed above is an AWD, GP-6.
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Wednesday, May 31st, 2023 AT 11:53 AM

4 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,968 POSTS
Here is what is said about the codes:

U0155: This code indicates that there is a communication problem between the vehicle's Engine Control Module (ECM) and the Instrument Panel Control (IPC) module.

U12AD: As of my knowledge cut-off in September 2021, the U12AD code isn't recognized as a standard OBD-II fault code.

U0293: This fault code indicates a communication problem with the Battery Energy Control Module.

Thanks for the video and images. I would first check all fuses when the system is on. This guide can help.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

You may have a MICU that needs to be replaced. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.
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Thursday, June 1st, 2023 AT 3:07 PM
Tiny
AHMEDKASHIF
  • MEMBER
  • 60 POSTS
Thank you for your reply.

I called in a technician from Honda, and he disconnected the main speedometer grip and tried starting the engine and it started

After that he turned off the engine quickly and reconnected the grip and tried started it again and it started. Then he turned the engine off and removed the error code with standard procedure with the scanner device

He suggested that the meter is faulty and need replacement and I don’t buy that.

Before preforming any of the things above he checked all the fuses which were all in healthy condition

What else do you suggest other than replacing the MICU after above diagnosis?
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Friday, June 2nd, 2023 AT 12:52 AM
Tiny
AHMEDKASHIF
  • MEMBER
  • 60 POSTS
I would also like to add the following comments.

For the first time when the problem came, I disconnected the negative battery terminal for few minutes, but nothing happened.

Then left it disconnected for several hours may by be 2-3 hours and then reconnected it and the car started.

After 10 days the issue came up again and disconnecting the battery negative terminal and reconnecting it after 5-10 seconds the car started with no errors (may be error came and I reset the battery terminal again - don’t remember)

For the final time I didn’t try much and called the technician from Honda and what he did I have mentioned previously in my reply.
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Friday, June 2nd, 2023 AT 3:22 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,968 POSTS
It sounds like the MICU, or the IPC is going out and needs to be reset to work, we should do a CAN scan to see which codes come up, you can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a guide to help us get started:

https://youtu.be/u-4syLc-ifQ

and

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Please go over these guides and get back to us.
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Friday, June 2nd, 2023 AT 10:11 AM

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