finding GND points in type 44

[Ameer Antar]

I was trying to diagnose a radiator fan problem and was checking all 
connections involved. I found that one of the grounds read 1-2 ohms 
relative to chassis ground. The chassis gnd was good since I could get much 
less readings on other gnd wires. The problem is I can't find it. I have a 
Bentley and it's supposed to be gnd point 12 which affects quite a few 
circuits including fan, lights, etc. It's supposed to be just after the 
point where the harness comes in from the engine compartment under the 
dash, but I see nothing connected to the firewall. Also gnd point 9 which 
is next to the left engine mount is supposed to be connected to 12 w/ a 
large gnd wire. So this must mean this wire is bad or the both gnd points 
are bad. Please help w/ any info on this if you have a type 44. Thanks.