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Showing results for tags 'inhibitor switch'.
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2002 H6 3.0 auto won't crank. For the last month when the car gets warm it would not start (just silence). Always started after sitting overnight. Now with the weather getting warm, after sitting for a day and a half its just silence apart from fuel pump and starter relay click, dash lights good. Tried a jump and still nothing. Narrowed it down to the inhibitor switch (in a MT this is called the neutral safety switch). Sits on the passenger side of the transmission and provides a short in P and N gear selections to allow the starter to crank. You can fool it into starting by shorting two pins together with a small paper clip. Connector is on top of the transmission just ahead of the firewall. T3/B12 pins 11-12. Looks like a new inhibitor switch is needed. Rear backup light also does not work and the dash gear shift position indicator lights are wonky. Problem is now my gear shift is locked I think because of my tinkering. I can unlock it by sticking a paper clip in the little hole to the right of the shifter...but what else is going on? I started the car with T3/B12 disconnected (despite a sudden electrical buzzing sound from underneath the car with the key in run position). Does the TCU get upset with B12 unmated and lock the shifter? How do I clear this? Reset the TCU/ECU or will it clear itself once the inhibitor switch is replaced and the car can start normally... code 852 is the neutral switch input circuit high