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GM COACH MAINTENANCE MANUAL
Sec. 7
Page 105
ENGINE COMPARTMENT PANEL
Engine compartment panel (fig. 4) is located
at right rear corner of vehicle in the engine com-
partment. Inner side of panel is accessible from
the engine compartment after removing panel cov-
er. Cover is attached to panel with nine cross-
recessed head screws.
Outer side of panel is
accessible after opening small access door at
right rear corner of vehicle. The following units
are mounted on inner side of panel:
Engine Compartment Junction Panel
Reverse Relay
Starter Relay
Stop Light Relay
Engine Comp't. Li
5
ht, Stop Light, Starter
and Generator Tell-tale Circuit Breakers
Mota-Gard and Relay are also mounted on
in-
ner side of panel (when used).
Regulator and Master Fuse are mounted on
outer side of panel.
"ENGINE START" switch,
"COMPARTMENT
LAMP" switch, and "START CUT-OUT" switl'.:h
are mounted on rear edge of panel.
WIRING AND MISC.,ELEC.
Junction panel contains twenty-eight terminals,
consecutively numbered from 1 to 28.
The tabu-
lation which follows lists each terminal number,
and the size, color, and pattern of the wire (or
wires) which connect to the terminal.
l
-- ,
Figur~
4-Engine
Compartment
Panel with Cover Removed
All wires leading from the junction panel to
units in the engine compartment
are insulated
with black heat- resistant insulation. These wires
are identified by a tag near end of each wire
which bears the number of the terminal t.o which
it connects, or an abbreviation of the name of
the unit to which
it
connects.
Terminal No.
1
2
3
I
7
8
9
10
11
12
13
14
Refer to Symbol
D
on Wiring Diagrams
Circuit
Taillights
&
Highway Sign
Feed From No.
l 09 Control Panel Jct.
To Engine Stop Solenoid
Feed From No. 99 Control Panel Jct.
To Temp. Gauge Engine Unit
Ground For Reverse Relay
Feed From No.
69 Control Panel Jct.
To Low Oil Pressure Switch
Feed From No. 79 Control Panel Jct.
To Engine Overheat Thermostat
Feed From No. 94 Control Panel Jct.
To Speedometer Drive Unit
Feed From No. 47 Control Panel Jct.
To Left Side Rear Directional Light
Feed From No. 48 Control Panel Jct.
To Right Side Rear Directional Light
Feed From No. 49 Control Panel Jct.
To Reverse Relay '' Vac.''
Terminal
Reverse Relay to Reverse Solenoid
Spare From No. 70 Control Panel Jct.
Spare From No.
110 Control Panel Jct.
Feed From No. 89 Control Panel Jct.
To Oil Gauge Engine Unit
\
Wire Sizes
&:
Color
No. 14 Nit. - Black Tr.
No. 14 Green
No. 14 Black
No. 16 Nat. - 2 Black
I I
Tr.
No. 16 Black
No. 14 Black
.
\,
No. 16 Nat. -
Bl~<fl·&
Gr. Cr. Tr.
No. 16 Black
No. 16 Yellow
No. 16 Black
Gi
II
No.
1#
Nat.
-
2
Tr.
No. 14 Black
No. 16 Nat.
-
Black Cr. Tr.
No. 16 Black
No.
16 Nat. - Red Cr. Tr.
No. 16 Black
No. 16 Nat. - 2 Red
II
Tr.
No. 16 Black
No. 10 Black
Green - Nat. Cr. Tr.
Green - Br. Cr. Tr.
No. 16 Nat, - Blk.
&
Gr.
I I
Tr.
No. 16 Black
No. 16 Black
-
2 Br.
II
Tr.
No. 16 Black
15
16
From D Terminal on Speedometer Dash Plug
To B
Term, on Speedometer Drive Unit
From A
Term. on Speedometer Dash Plug
To A
Term. on Speedometer Drive Unit
No. 16 Brown
-
Nat.
&
Blk. Cr. Tr.
No. 16 Black
Continued on next page
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