A/C Electrical Wiring Harness - Pontiac FIREBIRD 1972 Service Manual

CUSTOM AIR CONDITIONING 1A-113
VIEW
B
CONTROL ASM.
A/C AMBIENT SWITCH
REMOVE AND REPLACE
-
B SERIES
Fig. 1A-136 A Series A/C In-Car Wiring
The B Series ambient switch is located on the RH head-
lamp filler panel support bracket (Fig. 1A-133). To
remove the switch, remove (2) support bracket screws and
allow bracket to hang down between grille and condenser.
Disconnect switch connector, remove support bracket and
remove switch from bracket.
REMOVE A N D REPLACE
-
EXCEPT B SERIES
The ambient switch on all models except B Series is
located in the evaporator case or the cowl air inlet. The
switch can be easily replaced by disconnecting the wire
connector and removing two switch retaining screws.
A/C ELECTRICAL WIRING HARNESS
REMOVE A N D REPLACE
-
B SERIES
1. Disconnect battery.
2. Remove cold air duct.
3. Remove glove compartment and door.
5.
Remove harness from clips retaining harness to in-
strument panel.
6. Underhood, disconnect electrical connectors from
HI blower relay, engine harness, ambient switch wire
asm. and blower motor resistor. Refer to Fig. 1A-134
for connections and routing.
7. Release harness from retaining clips, remove dash
grommet and pull harness out of dash opening.
8. To replace, reverse removal procedure. Reseal dash
grommet when replacement is completed.
A/C IN-CAR WIRE HARNESS
REMOVE A N D REPLACE
-
A AND G SERIES
1. Disconnect battery.
2. Remove cold air duct.
3. On A Series remove radio.
4.
.
Disconnect connector at main (engine) wire harness
(Two connectors on G Series).
5. Disconnect all connections at control panel (includes
power connector from instrument panel harness).
4. Disconnect electrical connectors at control panel. 6. Remove harness.