I have an s300 v3 installed in a po6 now when it connects to the Bluetooth no matter what it says the ignition is off ive put in a new harness checked all the grounds switched ecus had the s300 checked bought a new obd0 to 1 adapter new ignition switch waiting in new fuses now so I can switch all of them had anyone experienced this

 

Is this issue only when connecting to Bluetooth?

 

No I can’t do anything on the laptop either it connects and says the ram has passed and all that stuff but won’t upload any tune to the ecu I sent the old ecu off to have it tested they said it was a bad processor so I bought another one kinda hop it’s it’s just bad too

 

Does anyone think it could be a bad fuse box

 

Connect the ECU to another car and see if you can upload a calibration. This test would eliminate the ECU/Hondata unit if it works in another car, and point a finger at the wiring in the car being the issue. Also, check fuses for all power distribution a to the ECU.

 

Wish I had another car to to test it with I bought a socket it tester and all the lights are on h-a motor sports tested the s300 and said it was ok but I don’t know what else it can be

 

N the options menu I can’t upload update firmware

 

Stupid question: Have you REGISTERED the S300 system ?

 

Yes it’s worked before it only stopped working when I was moving it around trying to trace a wire. The d3 light went out and now only comes on for a second

 

I sent feedback to Hondata support and they said the ecu isn’t powering up and it may be the capictors but I know power is going to the headers because if the socket tester could it be the interior fuse box or could all 3 ecu be bad

 

Has anyone ever had a fuse box go bad it’s the only thing I haven’t replaced besides the s300