<VV> Wiring Diagrams Confusion

[Sethracer@aol.com]

In a message dated 5/8/2004 7:19:56 AM Pacific Standard Time, 
the.tysons@comcast.net writes:
Can anyone offer some suggestions on interpreting the wiring diagrams in the
'65 Shop Manual?  I've never had much success in translating from one page to
next. 

Well - It is a learned knack. The wire colors are indicated in the lines from 
connector to connector. But there are mistakes in the drawings. In the 65 
diagram, check out the wiring in the connector between the dash and the under 
dash harness. The differences in the Corsa harness are pretty obvious. Check the 
Fuel gage circuit all the way from the sender to the gage. It uses a 20 T 
wire. Remember that the drawings of the connectors flip left to right when they go 
through a connector (admittedly a little confusing) It is the way you would 
see the connector if you opened it up and looked at it holding a connector in 
each hand. In your left hand the pin on the left side of the connector would 
actually plug into the pin on the right side of the connector in your right 
hand. GM pretty much used the same color wire as the circuit went through 
different connectors from one part of the car to another. For instance, the 20 T wire 
(20 gage wire, tan in color) is only used in the fuel circuit. 20 gage Dark 
Blue wire (20 DBL) is used in the oil pressure warning light/overheat light 
circuit.

In the 65 dash harness, if you were to connect everything a shown, you would 
have a few problems. A corsa dash has the clock fed from the main harness. Per 
the diagram, that pin feeds the high beam indicator in the 500/Monza dash. 
The under dash diagram shows that pin getting 12 volts all the time, along with 
the glove box and the under-dash and/or dome lights. Seems right for the 
clock, not right for the high beam indicator. I think the 500/monza dash diagram is 
wrong, and there may be other goofs as well.  - Seth Emerson