Pontiac FIREBIRD 1972 Service Manual page 1271

SECTION 12
CHASSIS ELECTRICAL AND INSTRUMENTS
CONTENTS OF THIS SECTION
Diagnosis
..................................................................
Battery
..................................................................
Lighting and Horn
..............................................
Ignition Key Buzzer
............................................
Turn Signal
..........................................................
Headlight
............................................................
Cornering Lamp
................................................
Turn Signal and Hazard Flasher
......................
Side Marker
........................................................
Tail. Park and License Lamp
............................
Back-up Lamp
..................................................
Stop Lamp
..........................................................
Speedometer
......................................................
Oil Pressure
........................................................
Temperature Lamp
............................................
..........................................................
Test Lamp
General Description
..............................................
Battery
................................................................
Wiring Harness
..................................................
Fuse Block
..........................................................
......................................................
Fusible Link
Wiring Connectors
............................................
Circuit Breaker
..................................................
Lighting
..............................................................
Stop Lamp Switch
............................................
Horns
..................................................................
Back-up Lamps
................................................
Cigar Lighter
......................................................
Traffic Hazard Flasher
......................................
Directional Signal
..............................................
Cornering Lamps
..............................................
Side Marker Lamps
..........................................
Instruments
........................................................
Fuel Gage
........................................................
Temperature Indicator Lamp
..........................
Generator Lamp
..............................................
Engine Oil Pressure Indicator Lamp
..............
Speedometer
....................................................
Printed Circuit
...............................
;
................
12-35
Power Accessory Schematics (See Section 15)
Electronic Accessory Schematics (See Section 1 5)
Interior Lamp Schematics
................................
12-35
Service Procedures
................................................
12-40
Battery
................................................................
12-40
Battery Cable
....................................................
12-40
Fusible Link
......................................................
12-40
Fuseblock and Bulkhead Connector
................
12-40
Engine Wire Harness 12-40 .
........................................
Front End Wire Harness
..................................
12-40
Headlamp
..........................................................
12-40
Front Park and Signal Lamps
..........................
12-61
Horns
..................................................................
12-61
Horn Relay and Buzzer Alarm
........................
12-62
Brake Warning Lamp Switch
............................
12-62
Side Marker Lamps
..........................................
12-62
Instrument Panel Cluster
..................................
12-63
Printed Circuit
..................................................
12-67
Speedometer Cable
........................................
12-69
Instrument Panel Pad
........................................
12-70
Fuel Gage
.........................
r
................................
12-84
Windshield Wiper Switch
..................................
12-89
Headlamp Switch
........................................
12-89
Cigar Lighter
.......................
:
.............................
12-89
Ignition Switch
..................................................
12-90
Dimmer Switch
..................................................
12-91
Back-up Lamp and Neutralizer Switch
............
12-91
Clutch Start Switch
........................................
12-93
Instrument Panel Wire Harness
........................
12-94
Tail Lamp Housing Assembly
..........................
12-94
Tail Lamp Lens
................................................
12-94
B Series Wiring Diagram
............
END O F SECTION
A Series Wiring Diagram
............
END O F SECTION
G Series Wiring Diagram
............
END O F SECTION
F Series Wiring Diagram
............
END O F SECTION
X Series Wiring Diagram
............
END O F SECTION
DIAGNOSIS
For more detailed diagnosis procedures consult "SER- If battery uses an abnormal amount of water. voltage
CON Electrical Diagnosis Procedures"
.
regulator setting may be too high
.
Measure terminal voltage of battery during cranking
.
BATTERY (Fig
.
F2-1)
Disconnect distributor to coil primary wire during this
If battery remains undercharged. check for loose genera- check to prevent engine firing
.
If terminal voltage is less
tor belt. defective generator. high resistance in charging than 9.0 volts. remove battery from service for further
circuit. oxidized regulator contact points. or a low voltage checking
.
See "Battery
.
General Description" for detailed
setting
.
battery tests
.