Multiecuscan

I have Fiat 500X 1.4L 2015 manual
Connected with bluetooth ELM327 to laptop with windows 7

I have these error codes:
U0010-88 - B-CAN line - Bus OFF
U0101-88 - C2-CAN - BUS OFF
U1736-87 - Convergence Telematic Node (NCV) - Missing message

Is this because I have an aftermarket head unit installed and not the original?

Probably.

Does the head unit you have installed have CAN Bus connections?

Yes
It is Hiworld - FIAT canID 3032008

Sorry for formatting but below is what Fiat have for diagnostic steps.

334 - 500X 1.4 Turbo MultiAir B CAN - Bus off U0010-88

1 COMPONENT
CONCERNED CAN LINE CHECK OK (NO FAULTS
DETECTED) FAULT DETECTED OPERATION
CAN (Mute)
Check the
continuity of the
CAN line wiring
Go to Step 2 CAN line wiring
interrupted
Restore the CAN
line continuity

2 COMPONENT
CONCERNED
BODY COMPUTER
CHECK
OK (NO FAULTS
DETECTED) FAULT DETECTED OPERATION
Body Computer
(Mute)
Check that the
Body Computer
connector is
connected
Go to Step 3
Body Computer
connector
disconnected
Reconnect the
Body Computer
connector

3 COMPONENT
CONCERNED
CHECK USING
DIAGNOSIS
EQUIPMENT
OK (NO FAULTS
DETECTED) FAULT DETECTED OPERATION
CAN (Bus Off)
Connect the
diagnosis
equipment to the
car and check
whether there are
faulty control
units on the
network
Go to Step 4
Network control
unit faulty (CAN
overloaded)
Continue as
instructed by the
diagnosis
equipment

4 COMPONENT
CONCERNED CAN LINE CHECK OK (NO FAULTS
DETECTED) FAULT DETECTED OPERATION
CAN (Bus Off)
Check that the
insulation of the
CAN Low to +
battery is correct
End of diagnosis short circuit to +
battery
Restore insulation
to + battery

Thanks @s130 you seem to be the main person who responds on this forum. I swapped in the original connect 5" head unit and one of these errors went away. I was also able to reset neutral and clutch position which I wasn't able to do with the aftermarket stereo. Aftermarket head unit back in... I miss the larger display and satnav. Guess if I need to take car to dealership for service will need to plug in the original.

Actually there are others here who respond much more often and with greater technical knowledge especially when it comes to doing custom proxi settings.

I assume when you put the old head unit back in you removed the additional HiWorld control box you had?

I would have thought that with the original head unit installed then all of the errors should have gone away.

What errors were you left with?

U0101-88 - C2-CAN - BUS OFF error went away.

I still have U0010-88 - B-CAN line - Bus OFF.

Can only add/advise - and sorry for formatting

334 - 500X 1.4 Turbo MultiAir B CAN - Bus off U0010-88
Test results
1 COMPONENT
CONCERNED CAN LINE CHECK OK (NO FAULTS
DETECTED) FAULT DETECTED OPERATION
CAN (Mute)
Check the
continuity of the
CAN line wiring
Go to Step 2 CAN line wiring
interrupted
Restore the CAN
line continuity

2 COMPONENT
CONCERNED
BODY COMPUTER
CHECK
OK (NO FAULTS
DETECTED) FAULT DETECTED OPERATION
Body Computer
(Mute)
Check that the
Body Computer
connector is
connected
Go to Step 3
Body Computer
connector
disconnected
Reconnect the
Body Computer
connector

3 COMPONENT
CONCERNED
CHECK USING
DIAGNOSIS
EQUIPMENT
OK (NO FAULTS
DETECTED) FAULT DETECTED OPERATION
CAN (Bus Off)
Connect the
diagnosis
equipment to the
car and check
whether there are
faulty control
units on the
network
Go to Step 4
Network control
unit faulty (CAN
overloaded)
Continue as
instructed by the
diagnosis
equipment

4 COMPONENT
CONCERNED CAN LINE CHECK OK (NO FAULTS
DETECTED) FAULT DETECTED OPERATION
CAN (Bus Off)
Check that the
insulation of the
CAN Low to +
battery is correct
End of diagnosis short circuit to +
battery
Restore insulation
to + battery

thanks, its what you put up before, have no idea what to do with it

Does this make sense?

The original is a table in a PDF file that just wont transcribe correctly to the forum.

Step 1
COMPONENT CONCERNED : Body Computer control unit connections
BODY COMPUTER CONTROL UNIT CONNECTIONS CHECK : Check for loose connections on Body Computer control unit and the other nodes connected on C1 CAN network
OK (NO FAULTS DETECTED) : Go to Step 2
FAULT DETECTED : Presence of loose connections
OPERATION : Restore the correct connections

Step 2
COMPONENT CONCERNED : CAN C2 wiring
CAN C2 WIRING : Check the continuity of the CAN C2 wiring
OK (NO FAULTS DETECTED) : Go to Step 3
FAULT DETECTED : Faults in the continuity of the CAN C2 line wiring
OPERATION : Restore the correct continuity of the CAN C2 line wiring

Step 3
COMPONENT CONCERNED : CAN C2 wiring
CAN C2 WIRING : Check the correct insulation of the CAN C2 wiring
OK (NO FAULTS DETECTED) : End of diagnosis
FAULT DETECTED : Incorrect insulation of the CAN C2 network wiring
OPERATION : Restore the correct insulation of the CAN C2 network wiring