I don't know where the plug is located but I figure it's going to the engine harness so the starter knows it's in 'P' or 'D' before it will start. I'm just going by the schematic above.
You should really do the Back-Up current test,... It's quite simple and easy to do.
I think you have a power drain when the car is off and it's killing your batteries and then straining your alternator trying to charge it back up after starting.
You should really do the Back-Up current test,... It's quite simple and easy to do.
I think you have a power drain when the car is off and it's killing your batteries and then straining your alternator trying to charge it back up after starting.