Quote:
Originally Posted by caswelld
Negative on the jacks. I read on IRV2 that this is a problem with lots of MBs. It was recommended to pull the battery disconnect near the accelerator pedal if your not going to drive it for a couple of weeks.
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Assuming the Isata 3 is wired similarly to the MBS Foresters and Soleras, pulling the ground disconnect will have no effect. Why? Because the coach wiring to the chassis battery provides an alternate ground path. Quick way to check - pull the disconnect, open the coach door. Does the instrument panel light up? If so, the chassis battery is providing power to the chassis.
If you remove the cover on the chassis battery, you will see the additional cables installed at the factory which provide power and ground. I expect these cables are what supply charging current to the coach batteries when the chassis alternator is running. I think the Isata has a boost switch so power also has to flow from the coach to the chassis batteries too.