Dodge ZB 2005, Service Manual

Page: 264 / 1873

STARTING
TABLE OF CONTENTS
page page
STARTING
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 19
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - STARTING
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . 19
DIAGNOSIS AND TESTING - CONTROL
CIRCUIT TEST . . . . . . . . . . . . . . . . . . . . . . . . 21
DIAGNOSIS AND TESTING - FEED CIRCUIT
RESISTANCE TEST . . . . . . . . . . . . . . . . . . . . 23
DIAGNOSIS AND TESTING - CLUTCH
PEDAL POSITION SWITCH . . . . . . . . . . . . . . 23
SPECIFICATIONS
STARTER . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
TORQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
STARTER MOTOR
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 24
STARTER MOTOR RELAY
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 24
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
STARTER SOLENOID
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 24
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
STARTING
DESCRIPTION
The starting system has:
•
Ignition switch - Run only
•
BCM - Start sense circuit
•
Starter relay
•
Clutch pedal mounted starter interlock switch
•
Wiring harness
•
Battery
•
Starter motor with an integral solenoid
•
Starter Button - In series with the clutch inter-
lock
OPERATION
These components form two separate circuits. A
high amperage circuit that feeds the starter motor up
to 300+ amps, and a control circuit that operates on
less than 25 amps.
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - STARTING
SYSTEM TEST
For circuit descriptions and diagrams, refer to the
Wiring Diagrams.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO THE PASSIVE RESTRAINT SYS-
TEMS BEFORE ATTEMPTING STEERING WHEEL,
STEERING
COLUMN, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. FAILURE
TO TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
INSPECTION
Before removing any unit from the starting system
for repair or diagnosis, perform the following inspec-
tions:
•
Battery - Visually inspect the battery for indi-
cations of physical damage and loose or corroded
cable connections. Determine the state-of-charge and
cranking capacity of the battery. Charge or replace
the battery, if required. Refer to the Battery section
for more information.
•
Ignition Switch - Visually inspect the ignition
switch for indications of physical damage and loose
or corroded wire harness connections.
•
Neutral Switch - Visually inspect for indica-
tions of physical damage and loose or corroded wire
harness connections.
•
Starter Relay - Visually inspect the starter
relay for indications of physical damage and loose or
corroded wire harness connections.
•
Starter Motor - Visually inspect the starter
motor for indications of physical damage and loose or
corroded wire harness connections.
•
Starter Solenoid - Visually inspect the starter
solenoid for indications of physical damage and loose
or corroded wire harness connections.
•
Wiring - Visually inspect the wire harness for
damage. Repair or replace any faulty wiring, as
required. Check for loose or corroded wire harness
connections at main engine ground and remote jump
post.
•
Power Distribution Center (PDC) - Visually
inspect the B+ connections at the PDC for physical
damage and loose or corroded harness connections.
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STARTING 8F - 19