Yellow Wire Tests
1:Yellows to Yellows forward or reversed tester leads Infinite resistance e.g above 2 meg Ohm
2:Red Test lead to Green lead in the block.Black to Yellows 569/569/570 ohms.
3:Black lead to Green lead Red lead to Yellows ALL infinite resistance
4:Red Test lead to Red and White in block.Black to Yellows all Infinite Resistance
5:Black test lead to Red and White in connector block 566/560/540 ohms
6:Black test lead to Black wire in connector block.Red Test lead to Yellows ALL infinite resistance
7:Red Test lead to Black Wire in connector block.Black test lead to Yellows 99.7k/100k/100k ohms.
Small Block Tests
1:Red test lead to Green.Black test lead to Red and White 125k ohms Reversed Infinite Resistance
2:Red test lead to Green.Black Test lead to Black 1500 ohms Reversed 35k ohms
3:Black Test lead to Red and White .Red Test lead to Black 722k ohms Reversed Infinite resistance
All Yellow and the small connector block wires are isolated from the case of the RR therefore the unit grounds through the Green wire from the connector block in my findings.