Electrical; Battery/Starting/Charging Systems Diagnostics; Diagnostic Information; Starting System Components - Dodge D150 1990 Service Manual

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BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS 8A - 1
ELECTRICAL
GROUP INDEX
Page
ALTERNATOR SERVICE 8C
BATTERY/STARTER SERVICE 8B
BATTERY/STARTING/CHARGING SYSTEM
DIAGNOSTICS 8A
HORNS 8G
IGNITION SYSTEM 8D
INSTRUMENT PANEL AND GAUGES 8E
LAMPS 8L
POWER LOCKS 8P
Throughout these groups, references m a y be made
to a p a r t i c u l a r vehicle b y l e t t e r or number designa-
t i o n . A chart showing t h e breakdown of these desig-
Page
POWER MIRRORS 8T
POWER WINDOWS 8S
RADIO, ANTENNA AND SPEAKERS 8F
RESTRAINT SYSTEMS 8M
SPEED CONTROL 8H
TURN SIGNALS AND HAZARD WARNING
FLASHERS 8J
WINDSHIELD WIPERS AND WASHERS 8K
WIRING DIAGRAMS 8W
nations is included i n the I n t r o d u c t i o n Section a t
front of t h i s service m a n u a l .
B A T T E R Y / S T A R T I N G / C H A R G I N G S Y S T E M S DIAGNOSTICS
C O N T E N T S
Page
ALTERNATOR TEST PROCEDURES
ON VEHICLE 14
BATTERY TEST PROCEDURES ON VEHICLE . . . 2
Page
DIAGNOSTIC INFORMATION . . . . . . . . . . . . . . . . 1
SPECIFICATIONS 19
STARTER TEST PROCEDURES ON VEHICLE . . . 9
DIAGNOSTIC INFORMATION
INTRODUCTION TO STARTING AND CHARGING
SYSTEM DIAGNOSTICS
The Battery, S t a r t i n g , and C h a r g i n g Systems oper-
ate i n conjunction w i t h one another, and therefore,
m u s t be t h o r o u g h l y tested as a complete system. I n
order for the vehicle t o s t a r t a n d charge .properly, i t
must have a b a t t e r y t h a t w i l l perform to specifica-
tions. The starter motor, alternator, w i r i n g , and elec-
tronics also m u s t perform w i t h i n specifications.
Group 8A w i l l cover S t a r t i n g (Fig. 1) a n d Charging
(Fig. 2) System diagnostic procedures from t h e most
basic conventional methods t o " O n Board Diagnos-
t i c s " (OBD) b u i l t i n t o t h e vehicle's electronics (except
diesel). The need for conventional testing equipment
has not been e l i m i n a t e d b y t h e introduction of OBD.
Use of a n ammeter, volt/ohmmeter, battery
charger, carbon pile rheostat (load tester), a n d 12
volt test l i g h t w i l l be r e q u i r e d .
NEGATIVE
BATTERY
CABLE
1
— r ~
POSITIVE
BATTERY
CABLE
SOLENOID
STARTER
MOTOR
U | * | . I — i I BATTERY
02}—
=» D
STARTER
RELAY
RR8AD4
Fig, 1 Starting System Components (Typical)