Search found 6 matches

by gbgunn-st
Sun Dec 03, 2023 8:22 pm
Forum: Diagnostic discussion
Topic: J1939 CAN bus Loading
Replies: 7
Views: 15778

Re: J1939 CAN bus Loading

Evening,

Thank you for your reply @rfmotors1, I will give this a try next week once am back in the workshop. Makes perfect sense now.

Thank You.
by gbgunn-st
Fri Dec 01, 2023 2:14 pm
Forum: Diagnostic discussion
Topic: J1939 CAN bus Loading
Replies: 7
Views: 15778

Re: J1939 CAN bus Loading

trace
by gbgunn-st
Fri Dec 01, 2023 2:13 pm
Forum: Diagnostic discussion
Topic: J1939 CAN bus Loading
Replies: 7
Views: 15778

J1939 CAN bus Loading

Hello, I am trying to measure the CANbus loading of a J1939 CAN network with a baud rate of 250kbs, I have first noticed when I use the serial decoding tool the figures are always in red. I have also noticed the CAN trace I have uploaded the messaging on the right hand side looks to move out of line...
by gbgunn-st
Mon Dec 16, 2019 3:27 pm
Forum: Diagnostic discussion
Topic: Parasitic Load Test
Replies: 2
Views: 3808

Re: Parasitic Load Test

Afternoon Steve. I will give this ago tomorrow just for piece of mind, this is very interesting reading. We did fix the issue of the discharge, one of the ECU's would randomly wake up. We checked the ignition supply to the controller and this was off at the time of the wake up. We flashed a older ve...
by gbgunn-st
Thu Dec 12, 2019 3:22 pm
Forum: Diagnostic discussion
Topic: Parasitic Load Test
Replies: 2
Views: 3808

Parasitic Load Test

Afternoon All, I have carried out a parasitic load test earlier today due to the battery draining over night, you can see the ECU's shutting down over the first few minutes then they shut down and the current draw goes to negative 2 amps. My question is, is this a load or a something I should dismis...
by gbgunn-st
Wed May 23, 2018 9:26 am
Forum: PicoScope 6 Automotive software
Topic: Auto Stop If Signal failure
Replies: 11
Views: 17727

Auto Stop If Signal failure

Morning All, Picoscope 4425 Hope Im not repeating a earlier post, I am after some help / advise. I have a new excavator that will randomly stop running roughly once a week, we have monitored the relevant sensors and changed with new. We believe it is a ECU failure but the OEM will not authorise with...