What's new I asked myself.
It all started when the reverse camera refused to work.
Then I idiotically drove the car during a tropical thunderstorm which dumps immense amounts of water in just a couple of minutes.
Next
thing I notice, one of my after market made-in-china side markers was behaving erratically but solved it by disabling and enabling the DRLs.
Next
thing I realise, is that I get and alert to check the reverse lights.
Low and behold, I see a blown fuse 6 in Row A.
Whipped out
Foxwell
and saw Fault code Terminal 30 left no communications and revers lights fault.
Tried to replace the fuse but replacement blew within 3 seconds of being stuck in there.
Unplgged tail lamp cluster, chucked in another fuse and pop, yet another one blew.
Oh well, it's gonna be another adventure with Sid...
Good luck! Electrical gremlins are the worst.
As it turns out...
Need a new rear module...🤦♂️
The discoloration doesn't look great, but that doesn't concern me as much as the chip in the top of that image - the solder on the right tabs look quite irregular? Unless that's a camera issue or something, it looks like someone's been in there...
Either way, rear module failures are probably one of the most common things I see on these forums... so it's not surprising. Good luck with the replacement!
Hiya Schwinn,
Thanks for that catch!
Looks like you're right and it IS concerning!
Imma gonna have to take a closer look at it n scrutinise it a little more.
Will post pics to when I have the chance to grab it from my indy.
FWIW, the VN450P chip there appears to just be a solid state relay... so it's driving outputs to motors and maybe even lights, most likely. If those pins on the right are loose or not touching anymore, that could certainly cause a loss of "control" on those devices. Without a schematic, we can't know what those outputs drive, but there are 3 outputs, first two are 10A max and the last is 2A max.
The soldering work doesn't look very good, so if those just popped off then it could be a simple fix by resoldering those pins back down. When you get the module, you can look more closely - see if those "pull up" from the pads on the board. And/or you could use a DVM to check the resistance between the chip and the pads on the board... it should be VERY low... and if you wiggle the chip while probing, you can see if it's intermittent.
Of course, all this assumes that this is where the problem lies... could certainly be somewhere else... but I'm just working off the one picture we have so far
Really greatful for that bit of advice Schwinn. Thank you 😊 🙏
I've ordered a new module from rosepassion.com (yes it sounds like some boudoir website) and it'll be arriving in a couple of days.
Meanwhile, I'll head back to the indy to grab the module and check on my own. Might not be that bad an idea to check and if you're right, it's an easy fix to have a spare module in place too.
I've got very limited knowledge of electronics but the interweb should be able to guide me as well (just like you did).
Thanks again! 😊
I've managed to download the datasheet for the VN450P chip so I'll have a clearer picture. But if necessary, I can probably buy a replacement chip as well. 😊
Cheers!
I doubt the chip failed... SSRs are pretty simple devices and this one seems very voltage tolerant (they're tested up to 48V apparently). But, yes, it would be easy to replace if that's all it is.
I'm happy to help further for testing if you wanted, of course... I'm pretty electrically savvy. But we should certainly make sure to look over the whole board for issues, at the very least.
Thank you
@schwinn
a replacement rear control module did the trick and everything's back to normal.
I'll take my time in going through the circuit bit by bit to see what needs replacing as it seems there's a bit more to it than just the VN450P.
It's good to have a spare module as well. 😊
