@GrumpyGel I have no code reader, unfortunately. I had a basic Bluetooth CAN reader but that doesn't show anything. Great idea. Let me see if I can get one.
Alibro
Well-Known Member
I used some of that magical error light fixing black tape. It's amazing stuff, one application and the error lights just disappear.
If you figure out how to fix it properly let me know.
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Alibro
Well-Known Member
Have a look at this
Savvycan is stunningly good software for reverse engineering.
Make sure you look at the notes for links to other channels.
You can use SavvyCAN on Windows but it's fussier about what adapter to use. I got the Rusoku Toucan to work.
personally I'm going to remove the fan controller and replace it with relays. That's because I'm using a Rover 75 ECU and it doesn't use a PWM output for the fans, just a hi speed and low speed output. I got a fan controller from a breaker so I can just steal the wires and connectors to make my own controller.
Alibro
Well-Known Member
It is fairly easy to strip down the instrument pack and a little black tape over the led's makes for an invisible repair. Lets face it you're not likely to be selling the car so it's no big deal. I suspect there is a combination of control from the HDC switch/ECU and CAN that turns them off. If you check page one of my EV build thread I think I mentioned a CAN signal turning the HDC light on and off.
I haven't needed fans since doing the conversion as the temps have never got above 40C
I did manage to reverse engineer enough of the CANbus packets going to the ABS to keep it happy, and Andy Revill modified a Rover 75 ECU for me so that it pretends to be a Freelander ECU. The data is out there (page one of the EV thread), but you would need to create something that sends those packets if you want to retain the factory functionality.
Alibro
Well-Known Member
I didn't touch the ABS in my car (ex TD4), it seems to be completely self contained and still operates correctly if I brake on slippy ground.
Setting up an Arduino to send the packets would be easy but ensuring they are sent at the correct time and making the system work correctly would be more of a challenge. I must admit I never even tried to figure out the HDC and TC as I have no intention of using it for off roading. Having said that I did recently use it to drive over my brother in laws wet fields and up a steep incline. Even with the worn Leaf tyres it performed better than I could have hoped but it did occur that HDC might have been handy coming back down
. I also used it to tow a Golf with a duff clutch master cylinder which it did with ease.
