Dealer appointment for stop/start

[Lunentucker]

Have the same issue. Truck has never been idle for more than 48 hours. Main Battery seems to be in good shape.

Wanted to take it into the dealer here in Canada and was told that electrical issues take minimum two weeks to sort. Sorry WHAT?

I could do it in two hours, I just dont have the gear.

You can take the AUX battery out of the equation easily and then you'll at least know if that's contributing to the problems.
Disconnect the ground cable for the AUX battery and tape it up to prevent incidental grounding. Remove fuse F42.
This effectively is the same as removing the smaller battery.
If the issues abate then you know what was causing them. If nothing changes then you'll have to dig deeper or take it to the dealer, or another mechanic.

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[apiv]

You can take the AUX battery out of the equation easily and then you'll at least know if that's contributing to the problems.
Disconnect the ground cable for the AUX battery and tape it up to prevent incidental grounding. Remove fuse F42.
This effectively is the same as removing the smaller battery.
If the issues abate then you know what was causing them. If nothing changes then you'll have to dig deeper or take it to the dealer, or another mechanic.

Thank you! Will get to it. Appreciate it.