Chassis Electrical; Wiring Harnesses - Pontiac TRANS AM 1977 Service Manual

CHASSIS ELECTRICAL
8-
1
SECTION 8
CHASSIS ELECTRICAL
NOTE: All LeMans Series using the Grand Prix style
instrument panel will be referred to as AG Series
.
CONTENTS OF THIS SECTION
Wiring Harnesses
Engine Wire Harness
..........................................
8-2
Front End Wire Harness
....................................
8-2
Battery Cables
.....................................................
8-2
Redundant Ground
............................................
8-2
Fusible Link
....................................................
8-2
Fuse Block and Bulkhead Connector
................
8-2
Instrument Panel
Instrument Panel Pad. Cluster and
Attaching Parts
..................................................
8-24
B Series
............................................................
8-30
A Series
...........................................................
8-24
G and AG Series
............................................
8-24
F Series
............................................................
8-24
X
Series
...........................................................
8-30
H Series
...........................................................
8-3 1
HM Series
.....................................................
8-3 1
Instrument Panel (Speedo) Cluster
A, B, G and F Series
......................................
8-3 1
X
Series
...........................................................
8-3 1
H and HM Series
............................................
8-32
...................................................
Printed Circuit 8-32
Instrument Panel Wire Harness
...........................................................
A Series 8-33
............................................................
F Series 8-33
............................................
G and AG Series 8-33
............................................................
B Series 8-33
...........................................................
X
Series 8-34
............................................
H and HM Series 8-34
.......................................................
"Hush"Pane1 8-35
Instruments
General Description
........................................
8-50
Diagnosis
........................................................
8-52
On-Car Service
..............................................
8-53
Speedometer Cable
..............................................
8-53
Horn
General Description
............................................
8-57
Diagnosis
.............................................................
8-60
Lamps
............................................
General Description 8-61
.............................................................
Diagnosis 8-63
....................................................
On-Car Service 8-70
Remove and Replace
......................................
8-70
Headlamps
...................................................
8-70
All Other Front Bulbs
..............................
8-70
Rear Bulbs
...................................................
8-70
Seat Belt Warning System
General Description
............................................
8-70
Diagnosis
............................................................
8-70
.................
Windshield Washer and Wiper System 8-72
.......................
Electrical Wire Codes By Category
8-73
Electrical Wire Codes by Circuit Number
............
8-75
WIRING HARNESSES
Complete wiring diagrams for all car lines are shown at
the rear of this section
.
The diagrams and car lines are:
Fig
.
8-1 B Series
Fig
.
8-2 A Series (See Note Above)
Fig
.
8-3 G & AG Series (See Note Above)
Fig
.
8-4 F Series
Fig
.
8-5
X
Series
Fig
.
8-6 H Series
Fig
.
8-7 HM Series
The diagrams show the engine. passenger compartment.
and rear end wire harness routing and connections
.
Physical
locations for much of the wiring is shown in the On-Car
Service portion of this section
.
Body harness details are
shown in the Body Service Manual
.
Accessory wiring circuits
are shown in Section 9
.
The wiring harness for F Series shows two standard
instrument cluster printed circuits
.
The carryover 1976
cluster will be used approximately the first half of the year.
and the standard "AWseries cluster will replace the 1976
"F"c1uster after that time
.
The wiring diagram reflects the