Okay, more fun. The EV package I bought included a little display that was supposed to show motor and battery status. But, it only showed the status of one motor, and now that the motors and batteries aren't on the same canbus, it's loses it's utility. So, I did what I should have done originally (but was not advised to) and bought 2 displays form NetGain for the Hyper 9's. If I'd had gotten them up front, life would have been much easier. they come with an orange wire. I'm inquiring from my guy how to wire them up, only to find out that there's no wire in the main connector for them, you have to add it in. I hate screwing with pinned connectors. So, I tore the large connectors down on both motor controllers, added the wire into what I hoped was the right location, and put it all back together, mounted the displays to the temporary dash, and turned it all back on.
And this is where things went typically to hell. One display was dead, and the other was throwing a series of errors. F**k me. So, assuming it was a wiring problem I spend 3 days messing around, including swapping the signal wire to the displays to confirm both actually worked. It finally occurs to me to check hyper 9's configuration. And, low and behold, there is a configuration for the display, which was set to 'none' on one of the controllers and set correctly on the other. Luckily NetGain had installed the OEM version of the software on my computer at some point, so I had access to all the options, otherwise I would not have been able to fix it.
So, now I have two working displays, but they are still throwing errors. But now I could see the errors on both units at the same time (instead of swapping the serial cable from unit to unit and using the lap top). The slave is showing a network error, but it does that if there's anything wrong with the master (because the master stops talking), the master was throwing a throttle fault. And, as with most of the errors, throttle fault means total shut down. So, I'm taking apart the connectors, figuring that when I put the wire for the display in, I must have damaged the pins for the throttle. but everything looks fine. Then taking the throttle off figuring when I move it, I might have damaged the connector. All fine. Finally, while tracing the wires back to look for a nick or something, I noticed that the signal wire solder joint had failed on the bulkhead connector. must have bumped it taking the big connector in and out. So, with the joint soldered back together, I have 2 green lights and the motors are turning again.
I know that when I get this thing on the trail, some obscure error is going to happen to the Hyper 9 and they are going to refuse to run and I'll be unable to get it moving - despite it being fully operational. I'm going to have to learn how to override the error system so I can force it to move. Now, in this case, the throttle wasn't sending it a signal, so overriding wouldn't have worked. But you know what I mean.
The final parts for the brake lines are showing up in the next few days, and with any luck, brakes should be operational. My experience the first run shows the need for an e-brake. Unlike a gas engine, there's very little resistance to rolling, so leaving it in gear is of little use. So, I'm going to have to order Jeep parking brake parts and figure out how to get it all mounted and some lever mounted in the cab.
