07 Ecu won’t communicate

FlashPro questions & answers specific to the 2007-2008 US TSX
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teriyuckie
Posts: 2
Joined: Sat May 03, 2025 2:45 pm

07 Ecu won’t communicate

Post by teriyuckie »

sup guys,

Im in the process of putting in my new 07 auto ecu to my 04 manual and when i connect the 07 ecu it won’t communicate to the scanner which is genuine dealership hds. i’ve done the whole can bus wiring. with rewiring the obd port and connecting the can pus wires to the green box.

any ideas?
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Spunkster
Site Admin
Posts: 24133
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: 07 Ecu won’t communicate

Post by Spunkster »

Double check the wiring as it sounds like it has not been done correctly. Try swapping CANL and CANH.
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