Charging System Diagnostics - Dodge D150 1990 Service Manual

• BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS 8A - 17
CHARGING SYSTEM DIAGNOSTICS
IMPROPER
CHARGING
UNSTEADY
OR LOW
CHARGING
OVER
CHARGING
NOISY
ALTERNATOR
CHECK BATTERY
CONDITION
SEE BATTERY
SECTION FOR
DETAILS
TEST
ALTERNATOR
OUTPUT WIRE
RESISTANCE
GROUNDED
ALTERNATOR FIELD
WIRE, FIELD
TERMINAL, OR
CONNECTIONS
WORN OR
FRAYED
DRIVE BELT
CORRODED
BATTERY CABLES
OR TERMINALS
DRIVE BELTS
LOOSE
LOOSE OR
CORRODED
WIRING
CONNECTIONS AT
ALTERNATOR
LOOSE OR
CORRODED
WIRING
CONNECTIONS AT
TERMINAL BLOCK
LOOSE
CHASSIS TO
BATTERY GROUND
CABLE
LOOSE
ALTERNATOR
GROUND WIRE
LOOSE OR
CORRODED
WIRING
CONNECTIONS AT
BULKHEAD
DISCONNECT
CHECK FOR
APPROXIMATELY
12 VOLTS AT FIELD
INPUT BRUSH
TERMINAL WITH
IGNITION SWITCH
" O N "
CHARGING
RESISTANCE
TOO HIGH
CORRODED OR
SHORTED CABLES
OR HIGH
RESISTANCE
ACROSS FUSIBLE
LINK
RESISTANCE
O.K.
TEST
ALTERNATOR
CURRENT
OUTPUT
CURRENT
OUTPUT
O.K.
REFER TO
USING ON-BOARD
DIAGNOSTIC
SYSTEM
FAULTY
ALTERNATOR
REFE
USING O
DIAGh
SYS
R TO
N-BOARD
JOSTIC
TEM
FAULTY
ALTERNATOR
ALTERNATOR
MOUNTING
LOOSE
FAULTY
ALTERNATOR
• FOR MORE INFORMATION REFER TO
THE POWERTRAIN DIAGNOSTIC PROCEDURES
MANUAL COVERING THE VEHICLE INVOLVED
• SEE GROUP 8W, WIRING DIAGRAMS FOR
CIRCUIT AND COMPONENT INFORMATION
908A-6