M37 Service Engine Soon Light On

Forum for Infiniti M37, M56 M35h Hybrid and Q70 owners.
Bubbam78155
Posts: 3
Joined: Tue Nov 05, 2013 7:42 am
Car: Infiniti M37

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My M37 has a Service Engine Soon Light on, on the Dash
I had the Codes read and the only one set is U0164
Anyone have an Idea what this is?


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svard75
Posts: 1564
Joined: Mon May 11, 2009 3:26 am
Car: 06 M35x
Location: Toronto, Ontario, Canada

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a quick google search came up with this

"U" codes are CAN network related codes, either no connection or no communication between modules. Either something is unplugged or there is an open in the circuit somewhere.

0164 specifically indicates an error in communication between your ECU and the HVAC control system. Did you do anything recently to your radio?

Bubbam78155
Posts: 3
Joined: Tue Nov 05, 2013 7:42 am
Car: Infiniti M37

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No nothing has been done

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Mjkkb2
Posts: 693
Joined: Mon Oct 21, 2013 11:37 am
Car: 2018 QX60 AWD, 2011 M37S, 2011 Quest, 2001 I30t(sold)
Location: Richmond VA

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Not trying to state the obvious, but have u made sure the gas cap is tight?

Bubbam78155
Posts: 3
Joined: Tue Nov 05, 2013 7:42 am
Car: Infiniti M37

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No problem, that was the first thing I tried

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svard75
Posts: 1564
Joined: Mon May 11, 2009 3:26 am
Car: 06 M35x
Location: Toronto, Ontario, Canada

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Bubbam78155 wrote:No nothing has been done
Have autozone or pep boys clear the code and see if it returns. If yes take it to the dealer for warranty repair.

Man what's up with newer M's?! All of these issues reminds me of a GM.


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