Thread: URGENT: NEED HELP WITH ELECTRICAL PROBLEM ON THE ROAD

Couple of questions.
Any trailers/vans connected?
Any other electrical loads such as fridges in use?
Any second battery system fitted?
Do you have a scan tool with you?

Originally Posted by mr_squiggle

Couple of questions.
Any trailers/vans connected?
Any other electrical loads such as fridges in use?
Any second battery system fitted?
Do you have a scan tool with you?

No to all of the above.

I would try a hard reset before anything else Steven. Even just disconnecting the battery and reconnecting after 1-2 minutes should be enough for full reset of all ECUs. It's quite simple to disconnect the negative terminal. Electrical gremlins often seem to relate back to an unhealthy battery although your symptoms are not common. Having said that, if the driver window is not responding at all, that could point towards a dodgy connection related to the window switch pack or the window motor. As always checking for fault codes is likely to be instructive. Not sure if you know anyone with one (fault reading is not VIN locked).

Good luck,
Scott

This may help with finding someone with a diagnostic tool
Members with Diagnostic Equipment map (updated 1/2015)
Members with Diagnostic Tools

Could be the wiring to the window control switches on the driver door too. It's the "master control" point.
I have a scan tool if that helps. Currently up at Rainbow Beach until tomorrow morning, then heading back to the Sunshine Coast.

Thanks for the input, gents - really appreciate it.

I just tried a hard reset, Scott. No effect.

Checked fuses, relays, etc. Seem to be fine.

It's probably the mirrors/windows control bundle. I pulled off the door card and played around with as much wiring as I could, but none of it helped.

Last year, when I was on Fraser, I had the window down and quite a bit of water splashed inside at some point - enough to make the speaker grille rust. I suspect that this current problem is associated with that little incident.

Now we're stuck in Cobargo, 5 hours to go until we get to Sydney. Very reluctant to drive the whole way with the window down - storms are forecast for most of the afternoon. Waiting for roadside assist.

Steven

If you have the door card off maybe you could unplug the window motor and tickle it into action with some jumper leads.

Hi Steven, if you've had salt water in the switch block you may be able to get going by removing the switch assembly, pulling it apart & giving it a good clean with a firm toothbrush & metho. You're looking for small tendril like tracks between the switch contacts and these can/will conduct small amounts of electricity due to the salt content, particularly in humid conditions.
Don't forget to look at the connector to the wiring loom, in between the pins. In fact start there before you pull the switch block apart.
Given your description of Fraser Island it's unlikely to be the cabling at all.