ZhiDou EV forum

Fixed my first suspected CAN fault by chopping back 12 inches of multi pr. cable from HV battery and soldering on a new segment of wires and terminating plug. The CAN pr (yellow / green) measured 120ohms across the old terminal, and 60 ohms when cut back and remeasured. I really need a block diagram for D2S. Any suggestions?

see a sample attached

MacTrott wrote: Thu Oct 01, 2026 9:18 pm see a sample attached

Where is that attached sample?
A value of 120 ohms is what you'd expect for a CAN bus termination resistor... what you're describing is a bit odd. So, what was the problem? The battery connector that the CAN line passes through? The wiring before the connector?

UPDATE:

For clarity Andytech3 60ohms is the expected measured value across the network according to any CAN documentation. If you measure 120ohms this will point to a broken CAN segment usually an open path or bad resistor. cutting back 12 inches and soldering the terminal did the trick.

Im really after a basic electrical diagram that can be used to trace the 9 wire cable group from the HV battery Aircraft bulkhead terminal.

there are 2 twisted pr. included in that bunch. one measures 60ohms (active CAN pr) the other twisted pr measure OL (not sure if they are backup)

Any help a circuit diagram for the 9 wire group will be appreciated as the manual schematic page is over compressed and distorted making it unreadable

Pin Wire / marking What we know Status
1 Red 12 V+ Measured/strong
2 Yellow / NH01? Appears part of second twisted pair Unknown function
3 Yellow / AH Twisted with pin 4 CAN-H candidate
4 Green / AL Twisted with pin 3 CAN-L candidatePin Wire / marking What we know Status
1 Red 12 V+ Measured/strong
2 Yellow / NH01? Appears part of second twisted pair Unknown function
3 Yellow / AH Twisted with pin 4 CAN-H candidate
4 Green / AL Twisted with pin 3 CAN-L candidate
5 Green / NC01? Appears part of second twisted pair Unknown function
6 ? / black? Need positive ID Unknown
7 Black 12 V−/ground Strong
8 White / 3303? Unknown control/data Trace/test
9 White / 3302? Unknown control/data Trace/test
10 White / 3301? Unknown control/data Trace/test