can-bus issues

multiecuscan program usage help
Post Reply
nozel
Posts: 2
Joined: 28 Jul 2018, 05:20

can-bus issues

Post by nozel » 02 Aug 2018, 16:12

Good Day all
I'm a new user of Multiecuscan Registered. Interface supplied from Gendan Co UK

We have a 2013 Fiat 500 Sport in Canada. We have had radio and usb connection issues in the past.
The radio was replaced early (within six months of ownership) under warranty.Fast forward to 2016 and warranty about to expire, My wife reports the radio provides no audio though clearly selected on.
This was mentioned to studio, who answered "unless there is a code" we won't replace it. I asked for a scan which was reluctantly given free of cost. It was reported no code pointing at the radio, so issue died right there.

I have since purchased a registered Multiecuscan with interface and have scanned both can-high and can-low with confusing results

Scan vehicle for available modules and check each module for errors...

Body
Body Computer Delphi (312) MY12
ISO Code: 40 83 EC 8A 0E

Airbag
TRW Airbag MY12
ISO Code: EA 07 B3 8A 83

Dashboard
Instrument Panel Marelli MY12
ISO Code: 32 83 CE 8A 62
Errors found:
U0019-87 - B-CAN line

Dashboard
UNKNOWN/UNSUPPORTED
ISO Code: B5 83 16 8A AD

Other
Tire Pressure Control (TPMS)
ISO Code: F4 02 86 8A 5B
Errors found:
U0019-87 - B-CAN line

************************************************************
VEHICLE SCAN REPORT
************************************************************
Scanning ...

Body
Body Computer Delphi (312) MY12
ISO Code: 40 83 EC 8A 0E

Airbag
TRW Airbag MY12
ISO Code: EA 07 B3 8A 83

Dashboard
Instrument Panel Marelli MY12
ISO Code: 32 83 CE 8A 62
Errors found:
U0019-87 - B-CAN line

Dashboard
UNKNOWN/UNSUPPORTED
ISO Code: B5 83 16 8A AD

Other
Tire Pressure Control (TPMS)
ISO Code: F4 02 86 8A 5B
Errors found:
U0019-87 - B-CAN line

COMPLETED
VEHICLE MAKE: Fiat
VEHICLE MODEL: 500 Sport North America
VEHICLE YEAR: 2013

SENDING DIAGNOSTIC REPORT ...

I'm cofused by the "unsupported iso code" dashboard module and the
TPMS fault code U0019-87 -B-CAN line as shown in the scan log above.

The engine ECU is reported as unknown /unsupported ISO code.
With multiple modules affected across CAN-high and CAN-low I suspect said modules won't be the issue

Any thoughts or inputs gladly accepted.

Thanks in advance

Rolf Zell

rs3100
Posts: 9
Joined: 18 Jul 2016, 21:35

Re: can-bus issues

Post by rs3100 » 03 Aug 2018, 09:49

Hello Rolf,

The Unknown/Unsupported dashboard module simply means that Multiecuscan does not recognise the module, which I suspect is the radio unit. This is possibly because it is a North American vehicle specific radio which has not been added to MES. The same would most likely apply to the engine ECU.

Using the function in MES to send a report of your scan to the developer may result in the modules being added and recognised in a future version of MES. I had the same issue with my European version uConnect 5.0 radio for several months, but it has since been added to the MES database and is now recognised.

U0019 is I believe a communication error on the B-can network. Have you tried clearing the error to see if it returns?

nozel
Posts: 2
Joined: 28 Jul 2018, 05:20

Re: can-bus issues

Post by nozel » 08 Sep 2018, 16:33

Hello rs3100
An update
I suspect my input to MES support was the catalyst to update MES to 4.2.
The engine ecu iso code is now recognized, though the CTM remains as an un recognized module.
I suspect a CAN-B communication issue as numerous modules are not present.
The modules of concern are CTM, Steering,, Drivers door,
Can bus resistance checked, found to be ~60 ohm
Can Bus Voltage checked, 2.5v CAN-A, 2.5V CAN-B, KEY OFF.
Can Bus Voltage CAN-A = 3.17v, CAN-B =3.9, KEY ON engine off.
The CAN-B codes can be cleared but reappear on next scan.
Without expensive tools I'm stumped.

The following text is from my last use of MES:

(Multiecuscan 4.2)
8/29/2018 3:01:10 PM
Fiat 500 1.4 16V T-Jet/MultiAir
CAN Info
--------------------------------------------------------------

List of configured control units :
Body Computer Node (BCM/NBC): Present
Engine Control Node (ECM/NCM): Present
Electric Steering Node (EPS/NGE): Present
Dashboard Node (IPC/NQS): Present
Steering Wheel Controls Node (NVO): Not present
Receiver Radio (NRR): Present
Brake System Node (ABS/BSM/NFR): Present
Info-Telematic/Convergence Node (NIT/NCV): Not present
Driver Door Node (NPG): Not present
Boot Node (NVB): Not present
Climate Control Node (HVAC/NCL): Not present
Automatic Transmission Node (TCM/NCA/NCR): Present
Steering Angle Sensor Node (NAS): Not present
Parking Brake Control Node (NPB): Not present
Ceiling Node (NIM): Not present
Side Acceleration / Yaw Node (NYL): Present
Adaptive Cruise Control Node (NAC): Not present
Passenger Door Node (NPP): Not present
Driver Seat Node (NAG): Not present
Assisted Braking Node (NBA): Not present
Passive Entry Node (NPE): Not present
Steering Lock Node (NBS): Not present
Gearbox Selector Node (ESM/GSM/NSC): Present
Passenger Seat Node (NAP): Not present
Parking Sensor Node (PAM/NSP): Not present
Engine Signals Node (NSM): Not present
Airbag Node (NAB/ORC): Present
Air Suspension Node (NMA): Not present
Roll Control Node (NRC): Not present
Self-adaptive Headlamps Node (AFLS/NFA): Not present
Receiver Radio/Radio Navigator Node (NRR/RMN): Not present
:
List of active control units :
Body Computer Node (BCM/NBC): Active
Engine Control Node (ECM/NCM): Active
Electric Steering Node (EPS/NGE): Active
Dashboard Node (IPC/NQS): Active
Steering Wheel Controls Node (NVO): Not active
Receiver Radio (NRR): Active
Brake System Node (ABS/BSM/NFR): Active
Info-Telematic/Convergence Node (NIT/NCV): Not active
Driver Door Node (NPG): Not active
Boot Node (NVB): Not active
Climate Control Node (HVAC/NCL): Not active
Automatic Transmission Node (TCM/NCA/NCR): Active
Steering Angle Sensor Node (NAS): Not active
Parking Brake Control Node (NPB): Not active
Ceiling Node (NIM): Not active
Side Acceleration / Yaw Node (NYL): Active
Adaptive Cruise Control Node (NAC): Not active
Passenger Door Node (NPP): Not active
Driver Seat Node (NAG): Not active
Assisted Braking Node (NBA): Not active
Passive Entry Node (NPE): Not active
Steering Lock Node (NBS): Not active
Gearbox Selector Node (ESM/GSM/NSC): Active
Passenger Seat Node (NAP): Not active
Parking Sensor Node (PAM/NSP): Not active
Engine Signals Node (NSM): Not active
Airbag Node (NAB/ORC): Active
Air Suspension Node (NMA): Not active
Self-adaptive Headlamps Node (AFLS/NFA): Not active
Receiver Radio/Radio Navigator Node (NRR/RMN): Not active
:
Control units' power mode (Logistic Mode):
Body Computer Node (BCM/NBC): Normal
Engine Control Node (ECM/NCM): Normal
Electric Steering Node (EPS/NGE): Normal
Dashboard Node (IPC/NQS): Normal
Steering Wheel Controls Node (NVO): Normal
Receiver Radio (NRR): Normal
Brake System Node (ABS/BSM/NFR): Normal
Info-Telematic/Convergence Node (NIT/NCV): Normal
Driver Door Node (NPG): Normal
Boot Node (NVB): Normal
Climate Control Node (HVAC/NCL): Normal
Automatic Transmission Node (TCM/NCA/NCR): Normal
Steering Angle Sensor Node (NAS): Normal
Parking Brake Control Node (NPB): Normal
Ceiling Node (NIM): Normal
Side Acceleration / Yaw Node (NYL): Normal
Adaptive Cruise Control Node (NAC): Normal
Passenger Door Node (NPP): Normal
Driver Seat Node (NAG): Normal
Assisted Braking Node (NBA): Normal
Passive Entry Node (NPE): Normal
Steering Lock Node (NBS): Normal
Gearbox Selector Node (ESM/GSM/NSC): Normal
Passenger Seat Node (NAP): Normal
Parking Sensor Node (PAM/NSP): Normal
Engine Signals Node (NSM): Normal
Airbag Node (NAB/ORC): Normal
Air Suspension Node (NMA): Normal
Self-adaptive Headlamps Node (AFLS/NFA): Normal
Receiver Radio/Radio Navigator Node (NRR/RMN): Normal

Post Reply