Chrysler Sebring, Stratus sedan, Sebring Convertible. Manual — part 326
and is gradually reduced as the calculated battery
temperature increases.
The ambient temperature sensor is used to control
the battery voltage based upon ambient temperature
(approximation of battery temperature). The PCM
maintains the optimal output of the generator by
monitoring battery voltage and controlling it to a
range of 13.5 - 14.7 volts based on battery tempera-
ture.
DIAGNOSIS AND TESTING - ON-BOARD
DIAGNOSTIC SYSTEM
The Powertrain Control Module (PCM) monitors
critical input and output circuits of the charging sys-
tem, making sure they are operational. A Diagnostic
Trouble Code (DTC) is assigned to each input and
output circuit monitored by the OBD system. Some
circuits are checked continuously and some are
checked only under certain conditions.
If the OBD system senses that a monitored circuit
is bad, it will put a DTC into electronic memory. The
DTC will stay in electronic memory as long as the
circuit continues to be bad. The PCM is programmed
to clear the memory after 40 good trip if the problem
does not occur again.
DIAGNOSTIC TROUBLE CODES
A DTC description can be read using the DRBIII
t
scan tool. Refer to the appropriate Powertrain Diag-
nostic Procedures manual for information.
A DTC does not identify which component in a cir-
cuit is bad. Thus, a DTC should be treated as a
symptom, not as the cause for the problem. In some
cases, because of the design of the diagnostic test
procedure, a DTC can be the reason for another DTC
to be set. Therefore, it is important that the test pro-
cedures be followed in sequence, to understand what
caused a DTC to be set.
ERASING DIAGNOSTIC TROUBLE CODES
The DRBIII
t Scan Tool must be used to erase a
DTC.
The following procedures may be used to diagnose
the charging system if:
• the check gauges lamp or battery lamp is illumi-
nated with the engine running
• the voltmeter (if equipped) does not register
properly
• an undercharged or overcharged battery condi-
tion occurs.
Remember that an undercharged battery is often
caused by:
• accessories being left on with the engine not
running
• a faulty or improperly adjusted switch that
allows a lamp to stay on. Refer to Ignition-Off Draw
Test (Refer to 8 - ELECTRICAL/BATTERY SYSTEM/
BATTERY - STANDARD PROCEDURE)
• loose generator belt.
INSPECTION
The Powertrain Control Module (PCM) monitors
critical input and output circuits of the charging sys-
tem, making sure they are operational. A Diagnostic
Trouble Code (DTC) is assigned to each input and
output circuit monitored by the On-Board Diagnostic
(OBD) system. Some charging system circuits are
checked continuously, and some are checked only
under certain conditions.
Refer to Diagnostic Trouble Codes in; Powertrain
Control Module; Electronic Control Modules for more
DTC information. This will include a complete list of
DTC’s including DTC’s for the charging system.
To perform a complete test of the charging system,
refer to the appropriate Powertrain Diagnostic Proce-
dures service manual and the DRBIII
t scan tool.
Perform the following inspections before attaching
the scan tool.
(1) Inspect the battery condition. Refer to the Bat-
tery section (Refer to 8 - ELECTRICAL/BATTERY
SYSTEM - DIAGNOSIS AND TESTING) for proce-
dures.
(2) Inspect condition of battery cable terminals,
battery posts, connections at engine block, starter
solenoid and relay. They should be clean and tight.
Repair as required.
(3) Inspect all fuses in both the fuseblock and
Power
Distribution
Center
(PDC)
or
IPM
(if
equipped) for tightness in receptacles. They should be
properly installed and tight. Repair or replace as
required.
(4) Inspect generator mounting bolts for tightness.
Replace or tighten bolts if required. Refer to the Gen-
erator Removal/Installation section of this group for
torque specifications (Refer to 8 - ELECTRICAL/
CHARGING - SPECIFICATIONS).
(5) Inspect generator drive belt condition and ten-
sion. Tighten or replace belt as required. Refer to
Belt Tension Specifications(Refer to 7 - COOLING/
ACCESSORY DRIVE - SPECIFICATIONS).
(6) Inspect decoupler pulley (if equipped). Ensure
decoupler pulley is driving the alternator rotor.
(7) Inspect automatic belt tensioner (if equipped).
Refer to the Cooling System for more information.
(8) Inspect generator electrical connections at gen-
erator field, battery output, and ground terminal (if
equipped). Also check generator ground wire connec-
tion at engine (if equipped). They should all be clean
and tight. Repair as required.
JR
CHARGING
8F - 19
CHARGING (Continued)
![](/vehicles/ged/eoowintisin/couthalle/knayouchepin.png)
SPECIFICATIONS
GENERATOR
Type
Engine
Minimun Test
Amperage
DENSO
2.0L
135 Amp
DENSO
2.4L
135 Amp
DENSO
2.7L
135 Amp
Test Specification:
1. Engine RPM : 2500 RPM ±20 RPM
2. Voltage Output : 14.0 V ± 0.5 V
3. Field Current : 5 amps ± 0.1 amps
Part number is located on the side of the generator.
TORQUE
DESCRIPTION
N·m
Ft. Lbs.
In. Lbs.
Battery Hold Down Clamp
Bolt
22.6
16.7
200
Generator B+ Nut
11
8.1
97.4
Battery Terminal Nut
15.8
11.7
140
Generator Mounting Bolts
2.4L
28.2
20.8
250
Generator Mounting Bolts
2.7L
28.2
20.8
250
GENERATOR
DESCRIPTION
The generator is belt-driven by the engine. It is
serviced only as a complete assembly. If the genera-
tor fails for any reason, the entire assembly must be
replaced. The generator produces DC voltage.
OPERATION
As the energized rotor begins to rotate within the
generator, the spinning magnetic field induces a cur-
rent into the windings of the stator coil.
The Y type stator winding connections deliver the
induced AC current to 3 positive and 3 negative
diodes for rectification. From the diodes, rectified DC
current is delivered to the vehicles electrical system
through the generator, battery, and ground terminals.
Noise emitting from the generator may be caused
by:
• Worn, loose or defective bearings
• Loose or defective drive pulley
• Incorrect, worn, damaged or misadjusted drive
belt
• Loose mounting bolts
• Misaligned drive pulley
• Defective stator or diode
• Damaged internal fins
REMOVAL
REMOVAL - 4 CYLINDER
(1) Disconnect battery negative cable from remote
negative terminal on shock tower (Fig. 1).
(2) Remove belt cover.
(3) Unplug field circuit from generator.
(4) Remove B+ terminal cover by spreading the
cover with a small flat blade tool.
(5) Remove the B+ terminal wire and nut (Fig. 2).
(6) Raise vehicle and support.
(7) Remove the accessory drive splash shield.
(8) Remove the accessory drive belt, refer to the
Cooling section for more information.
(9) Lower vehicle.
(10) Remove the MAP sensor from the intake man-
ifold (Fig. 3).
8F - 20
CHARGING
JR
CHARGING (Continued)
![](/vehicles/ged/eoowintisin/couthalle/ayonfoma.png)
(11) Remove the generator bolts.
(12) Remove the generator from vehicle (Fig. 4).
Fig. 1 Remove Battery Cable at Shock Tower
Fig. 2 Wiring Connections
1 - B+ TERMINAL
2 - CASE GROUND
3 - FEED
4 - TO PCM
Fig. 3 GENERATOR AND MAP SENSOR
1 - Generator
2 - MAP Sensor
Fig. 4 GENERATOR
JR
CHARGING
8F - 21
GENERATOR (Continued)
![](/vehicles/ged/eoowintisin/couthalle/your.png)
REMOVAL - 2.7L
(1) Open Hood.
(2) Disconnect the negative battery cable.
(3) Raise vehicle and support.
(4) Remove the accessory drive belt splash shield.
(5) Loosen the accessory drive belt refer to the
cooling section.
(6) Remove the lower mounting bolt.
(7) Lower the vehicle.
(8) Remove the B+ terminal and field connection
(Fig. 5).
(9) Disconnect the electrical connector to the A/C
pressure switch and A/C clutch.
(10) Remove the engine oil dip stick.
(11) Remove the 2 upper mounting bolts.
(12) Remove the generator (Fig. 6).
INSTALLATION
INSTALLATION - 4 CYLINDER
(1) Install generator.
(2) Install bolts and tighten.
(3) Install MAP sensor and tighten bolts.
(4) Raise vehicle and support.
(5) Install the accessory drive belt, refer to the
Cooling section for more information.
(6) Install the accessory drive splash shield.
(7) Lower vehicle.
(8) Install the B+ terminal wire and nut (Fig. 2).
(9) Install B+ terminal cover.
(10) Plug in the field circuit to generator.
(11) Install belt cover.
(12) Install the negative battery cable.
INSTALLATION - 2.7L
(1) Install generator (Fig. 6).
(2) Install the 2 upper bolts but do not tighten.
(3) Install the engine dip stick tube.
(4) Connect the A/C pressure switch and A/C
clutch electrical connectors.
(5) Connect the B+ terminal and field connectors
(Fig. 5).
(6) Raise vehicle and support.
(7) Install the lower bolt and tighten.
(8) Install the accessory drive belt, refer to the
cooling section.
(9) Install the accessory drive splash shield.
(10) Lower the vehicle.
(11) Tighten the 2 upper mounting bolts.
(12) Connect the negative battery cable.
Fig. 5 GENERATOR BATTERY CABLE
Fig. 6 GENERATOR
8F - 22
CHARGING
JR
GENERATOR (Continued)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст