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**David Hurley** · 4 Weeks Ago

I contacted City Diesel, and they had no interest in dealing with it.

Regarding the oscilloscope readings, I meant that if I used my breakout leads, I would be wondering what the correct voltage readings on the leads for the can bus should be.

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**AK Bob** · 4 Weeks Ago

Originally Posted by David Hurley

I contacted City Diesel, and they had no interest in dealing with it.

Regarding the oscilloscope readings, I meant that if I used my breakout leads, I would be wondering what the correct voltage readings on the leads for the can bus should be.

When back-probing between the two J1939 CAN pins at the actuator connector with a multimeter meter you should read an average voltage of approximately 0.5V DC. CAN High to ground 2.7V DC and CAN Low to ground 2.2V DC when there is communication.

The best way to measure and see the CAN message is with a scope.

See the attached CAN waveform message.

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**David Hurley** · 4 Weeks Ago

Originally Posted by AK Bob

When back-probing between the two J1939 CAN pins at the actuator connector with a multimeter meter you should read an average voltage of approximately 0.5V DC. CAN High to ground 2.7V DC and CAN Low to ground 2.2V DC when there is communication.

The best way to measure and see the CAN message is with a scope.

See the attached CAN waveform message.

Thank you so much.

I have an oscilloscope, and the breakout leads. I need to log it while I drive with the actuator still working.

I'm just reading as well.

I’ll log it on Friday or Saturday and post the scope graphs.

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