Buick LeSabre 1965 Service Manual page 634

1 0 - 6 4 TROUBLE DIAGNOSIS
ELECTRICAL SYSTEMS
VOLTAGE REGULATOR
DISCONNECT PLUG-
16 RED
24 B.W.S.
(RES WIRE 10 OHMS.)
A—DELCOTRON IND.
B —WATER TEMR-COLD
C—WATER TEMP- HOT
D—IGNITION
L — O I L PRESSURE
GRD.
IGNITION
SWITCH
TO STARTER
TO COM.
THIS CIRCUIT USED ON
4 7 0 0 CARS ONLY
THIS CIRCUIT USED ON
4 6 0 0 8 4 8 0 0 CARS
SOLID LINES - RUNNING POSITION.
DOTTED UNES-START POSITION.
LETTER IN LAMP DENOTES COLOR.
UNLESS OTHERWISE SPECIFIED
ALL WIRES ARE 18 GAUGE.
COLOR CODE
B.W.S. BROWN WITH WHITE STRIPE
W.O.P.C.T WHITE WITH ORANGE ft
PURPLE CROSS TRACER
Figure 10-66—Indicator Warning Light Circuits - 4 6 - 4 8 - 4 9 Series
pressure switch, if light stays on
trouble is in wiring.
2. Switch d e f e c t i v e . Replace
switch.
e. Temperature Indicator
right cylinder head controls the
operation of a "Cold" tempera-
ture indicator with a green lens
and a "Hot" temperature indi-
cator with a red lens.
NOTE: LeSabres do not have a
A temperature switch located in "Cold" light.
When the cooling system water
temperature is b e l o w approxi-
mately 110 degrees F., the tem-
perature switch g r o u n d s the
"Cold" indicator circuit and the
"Cold" on the*instrument cluster
is lit. When the "Cold" light
goes out, the water temperature