I'd appreciate some assistance in understanding this harness from a '86 560SEL:


Specifically:
1) What does B (a single female bullet) connect to?
2) What is each of the 4 pins in C for?
3) What is each of the 7 pins in E for?
4) Is the light (F) an indicator of some condition, or just for illumination?
5) What do the square sided and round sided (2 female bullets) in G connect to?

Also, if A is not the Hall effect sensor, and D is not the accelerator pedal kickdown switch, please correct me.

Thanks!