Error - 1073807339 Cannot write CAN message to water pump for automotive application

[mshinn]

Hello,

I am trying to read and write a CAN message to a water pump but am only able to read messages and not write messages. I am using a NI USB-8473 device to communicate with a pump. I have the components wired according to the attached image, and I have based my VI off of the LabVIEW examples. 

I have a fixed baudrate of 250k based on the manufacturers specifications. I have self-tested the NI USB-8473 in NI MAX, it has passed, and I am using CAN0 in my VI and in MAX.

When I try to run the vi, I can successfully read messages from the pump. However when I try to send a message to the pump it does not respond.

I am not sure where to go from here. Is there anything vital that my vi is missing, or is there any troubleshooting steps that I should attempt?

Thank you,

Mitchell

[mshinn · Accepted solution]

I solved my problem. It ends up that I had the improper Arbitration ID to the pump. As soon as I changed this, I could correctly communicate with my pump.