Chrysler 2004 Concorde Service Manual page 284

8F - 22 STARTING
STARTING
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 22
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
DIAGNOSIS AND TESTING
DIAGNOSIS AND TESTING - STARTING
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . 22
DIAGNOSIS AND TESTING - CONTROL
CIRCUIT TEST . . . . . . . . . . . . . . . . . . . . . . . . 25
DIAGNOSIS AND TESTING - FEED CIRCUIT
RESISTANCE TEST . . . . . . . . . . . . . . . . . . . . 26
SPECIFICATIONS
STARTER . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
SPECIFICATIONS - TORQUE
STARTER MOTOR
DESCRIPTION
DESCRIPTION - 2.7L
STARTING
DESCRIPTION
The starting system consists of:
• Starter relay
• Starter motor (including an integral starter sole-
noid)
Other components to be considered as part of start-
ing system are:
• Battery
• Battery cables
• Ignition switch and key lock cylinder
• Clutch pedal position switch (manual transmis-
sion)
• Park/neutral position switch (automatic trans-
mission)
• Wire harnesses and connections.
The Battery, Starting, and Charging systems oper-
ate in conjunction with one another, and must be
tested as a complete system. For correct operation of
starting/charging systems, all components used in
these 3 systems must perform within specifications.
When attempting to diagnose any of these systems, it
is important that you keep their interdependency in
mind.
The diagnostic procedures used in each of these
groups include the most basic conventional diagnostic
methods, to the more sophisticated On-Board Diag-
nostics (OBD) built into the Powertrain Control Mod-
ule (PCM). Use of an induction-type milliampere
STARTING
TABLE OF CONTENTS
page
. . . . . . . . . . . . 27
. . . . . . . . . . . . . . . . . . . 28
DESCRIPTION - 3.5L
OPERATION
OPERATION - 2.7L
OPERATION - 3.5L
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . 28
STARTER MOTOR RELAY
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 29
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
DIAGNOSIS AND TESTING - STARTER RELAY . 29
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
STARTER SOLENOID
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . 30
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
DIAGNOSIS AND TESTING - STARTER
SOLENOID . . . . . . . . . . . . . . . . . . . . . . . . . . 30
ammeter, volt/ohmmeter, battery charger, carbon pile
rheostat (load tester), and 12-volt test lamp may be
required.
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 20 amps.
The PCM controls a double start over-ride safety
that does not allow the starter to be engaged if the
engine is already running.
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.
. . . . . . . . . . . . . . . . . . . 28
. . . . . . . . . . . . . . . . . . . . 28
. . . . . . . . . . . . . . . . . . . . 28
LH
page