tow CHRYSLER CARAVAN 2003 Service Manual

WELD LOCATIONS
SPECIFICATIONS - WELD LOCATIONS
INDEX
DESCRIPTION FIGURE
FRONT FENDER SHIELD - RIGHT 62
FRONT FENDER SHIELD - LEFT 63
STRUT TOWER AND REINFORCEMENTS - RIGHT 64
SUSPENSION RETAINERS AND REINFORCEMENTS - RIGHT 65
STRUT TOWER AND REINFORCEMENTS - LEFT 66
SUSPENSION RETAINERS AND REINFORCEMENTS - LEFT 67
FLOOR PAN REINFORCEMENTS - SIDE RAILS 68
REAR SUSPENSION BRACKETS 69
FLOOR PAN CROSS MEMBERS 70
SEAT REINFORCEMENTS - LONG WHEEL BASE ONLY 71
STRIKER REINFORCEMENTS - LONG WHEEL BASE ONLY 72
FUEL TANK MOUNTING/REAR SEAT AND SUSPENSION 73
REAR SUSPENSION HANGER BRACKETS - LONG WHEEL BASE 74
FRONT SEAT CROSS MEMBER 75
FLOOR PAN SIDE RAIL REINFORCEMENT 76
SILL BULKHEAD REINFORCEMENTS 77
FLOOR PAN CROSS MEMBER REINFORCEMENTS 78
FRONT SEAT CROSS MEMBER 79
SEAT REINFORCEMENT CROSS MEMBERS - SHORT WHEEL BASE 80
CENTER CONSOLE REINFORCEMENT - SHORT WHEEL BASE 81
REAR SUSPENSION HANGER BRACKETS - SHORT WHEEL BASE 82
LOWER LIFTGATE PANEL LATCH REINFORCEMENT 83
ENGINE MOUNTING PLATE AND TOW BRACKET 84
HEADLAMP MOUNTING PLATE 85
LOWER RADIATOR CROSS MEMBER BRACKETS 86
CROSS MEMBER EXTENSIONS 87
JACK MOUNTING BRACKET - LONG WHEEL BASE SHOWN, SHORT SIMILAR 88
FRONT SEAT CROSS MEMBER - LONG WHEELBASE ONLY 89
FRONT SEAT CROSS MEMBER - ALL WHEEL DRIVE ONLY 90
FUEL TANK SUPPORT CROSS MEMBERS - LONG WHEEL BASE ONLY 91
REAR SUPPORT AND TIRE STOWAGE CROSS MEMBERS - LONG WHEEL BASE
ONLY92
INNER SIDE SILLS - LONG WHEEL BASE ONLY 93
WHEELHOUSES, SIDE SILLS, SUSPENSION BRACKETS - LONG WHEEL BASE ONLY 94
REAR SEAT REINFORCEMENTS - SHORT WHEEL BASE ONLY 95
FUEL TANK SUPPORT AND TIRE STOWAGE - SHORT WHEEL BASE ONLY 96
INNER SIDE SILLS - SHORT WHEEL BASE ONLY 97
RSBODY STRUCTURE23 - 161
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DESCRIPTION FIGURE
REAR SEAT REINFORCEMENTS - SHORT WHEEL BASE ONLY 98
CENTER CONSOLE REINFORCEMENT - SHORT WHEEL BASE ONLY 99
WHEELHOUSES - SHORT WHEEL BASE ONLY 100
FRONT SEAT CROSS MEMBER - SHORT WHEELBASE, ALL WHEEL DRIVE ONLY 101
FLOOR PAN SIDE RAIL - LONG WHEEL BASE ONLY 102
INNER BODY SIDE SILL REINFORCEMENTS 103
TOE BOARD CROSS MEMBER 104
FRONT SIDE RAIL - SHORT WHEEL BASE ONLY 105
DASH PANEL REINFORCEMENT 106
LOWER COWL PLENUM 107
UPPER COWL PLENUM SUPPORT 108
UPPER DASH PANEL 109
COWL SIDE PANELS 110
INSTRUMENT PANEL ATTACHMENT TAPPING PLATES 111
INSTRUMENT PANEL, DASH PANEL, ACM MODULE AND ACCELERATOR PEDAL 112
STRUT TOWER BRACKET AND COWL PLENUM 113
FRONT SIDE RAILS TO LOWER DASH PANEL 114
INNER BODY SIDE SILL TO LOWER DASH PANEL 115
FRONT HINGE TAPPING PLATE 116
FRONT HINGE PILLAR 117
INNER WINDSHIELD FRAME 118
WINDSHIELD FRAME 119
FENDER BRACKET 120
INNER B-PILLAR 121
STRIKER LATCH AND TAPPING PLATES 122
RIGHT REAR INNER QUARTER PANEL - LONG WHEEL BASE ONLY 123
RIGHT REAR INNER QUARTER PANEL/OUTER WHEELHOUSE - LONG WHEEL BASE
ONLY124
RIGHT REAR BODY SIDE APERTURE - LONG WHEEL BASE ONLY 125
STRIKER LATCH REINFORCEMENT - LONG WHEEL BASE ONLY 126
BELT TAPPING PLATE - LONG WHEEL BASE ONLY 127
C-PILLAR REINFORCEMENT - LONG WHEEL BASE ONLY 128
OUTER WHEELHOUSE - LONG WHEEL BASE ONLY 129
C AND D-PILLAR INNER REINFORCEMENTS - LONG WHEEL BASE ONLY 130
LEFT REAR INNER QUARTER PANEL - LONG WHEEL BASE ONLY 131
OUTER WHEELHOUSE EXTENSION - LONG WHEEL BASE ONLY 132
TAIL LAMP - LONG WHEEL BASE ONLY 133
SLIDING DOOR LATCH - LONG WHEEL BASE ONLY 134
ROOF BOW EXTENSION - LONG WHEEL BASE ONLY 135
RIGHT REAR INNER QUARTER PANEL - SHORT WHEEL BASE ONLY 136
LATCH REINFORCEMENT AND OUTER WHEELHOUSE - SHORT WHEEL BASE ONLY 137
D-PILLAR REINFORCEMENT - SHORT WHEEL BASE ONLY 138
23 - 162 BODY STRUCTURERS
WELD LOCATIONS (Continued)
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Fig. 64 STRUT TOWER AND REINFORCEMENTS - RIGHT
RSBODY STRUCTURE23 - 165
WELD LOCATIONS (Continued)
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Fig. 66 STRUT TOWER AND REINFORCEMENTS - LEFT
RSBODY STRUCTURE23 - 167
WELD LOCATIONS (Continued)
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Fig. 84 ENGINE MOUNTING PLATE & TOW BRACKET
RSBODY STRUCTURE23 - 185
WELD LOCATIONS (Continued)
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Fig. 92 REAR SUPPORT AND TIRE STOWAGE CROSSMEMBERS - LONG WHEEL BASE ONLY
23 - 192 BODY STRUCTURERS
WELD LOCATIONS (Continued)
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Fig. 96 FUEL TANK SUPPORT AND TIRE STOWAGE - SHORT WHEEL BASE ONLY
RSBODY STRUCTURE23 - 195
WELD LOCATIONS (Continued)
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Fig. 113 STRUT TOWER BRACKET AND COWL PLENUM
Fig. 114 FRONT SIDE RAILS TO LOWER DASH PANEL
RSBODY STRUCTURE23 - 209
WELD LOCATIONS (Continued)
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SPECIFICATIONS - HEATER-A/C SYSTEM
ITEM DESCRIPTION NOTES
Vehicle RS - Caravan, Town & Country, Voyager
System R134a with expansion valve(s)
Compressor Nippondenso - 10S20 ND-8 PAG Oil
Freeze±up Control Evaporator temperature sensor Expansion valve mounted - input
to heater-A/C control module
Low PSI Control Pressure transducer Liquid line mounted - input to
Powertrain Control Module (PCM)
- PCM opens compressor clutch
relay < 29.4 psi
High PSI Control Pressure transducer Liquid line mounted - input to
PCM - PCM opens compressor
clutch relay > 450 psi
Pressure relief valve Compressor mounted - opens >
495 psi
Control Head Single zone, dual zone, and three zone
Manual Temperature Control (MTC) - or
Automatic Temperature Control (ATC), (Two
or Three Zone)PCI data bus messaging - ATC
uses two infrared temperature
sensors
Mode Door Electric actuator Control head driven
Blend Air Door Electric actuator
Fresh/Recirc Door Electric actuator
Blower Motor Control head switch Resistor and relay with MTC,
power module and relay with ATC
Cooling Fans Pulse width modulated variable speed PCM control through solid state
fan relay
Clutch
Clutch Control PCM PCM control through compressor
clutch relay
Clutch Coil Draw 2.2 amps @ 12V   0.5amps@ 70É F
Compressor Clutch Air Gap 0.0209- 0.0359
Diagnostics DRBIIITscan tool
RSHEATING & AIR CONDITIONING24-7
HEATING & AIR CONDITIONING (Continued)
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A/C PRESSURE TRANSDUCER
DESCRIPTION - A/C PRESSURE TRANSDUCER
The A/C pressure transducer (Fig. 2) is a switch
that is installed on a fitting located on the refriger-
ant liquid line between the filter-drier and the
expansion valve in the right rear corner of the engine
compartment. An internally threaded hex fitting on
the transducer connects it to the externally threaded
Schrader-type fitting on the liquid line. A rubber
O-ring seals the connection between the transducer
and the liquid line fitting. Three terminals within a
molded plastic connector receptacle on the top of the
transducer connect it to the vehicle electrical system
through a take out and connector of the headlamp
and dash wire harness.
The A/C pressure transducer cannot be adjusted or
repaired and, if faulty or damaged, it musty be
replaced.
OPERATION
The A/C pressure transducer monitors the pres-
sures in the high side of the refrigerant system
through its connection to a fitting on the liquid line.
The transducer will change its internal resistance in
response to the pressures it monitors. The Power-
train Control Module (PCM) provides a five volt ref-
erence signal and a sensor ground to the transducer,
then monitors the output voltage of the transducer
on a sensor return circuit to determine refrigerant
pressure. The PCM is programmed to respond to this
and other sensor inputs by controlling the operation
of the air conditioning compressor clutch and theradiator cooling fan to help optimize air conditioning
system performance and to protect the system com-
ponents from damage. The A/C pressure transducer
input to the PCM will also prevent the air condition-
ing compressor clutch from engaging when ambient
temperatures are below about 10É C (50É F) due to
the pressure/temperature relationship of the refriger-
ant. The Schrader-type valve in the liquid line fitting
permits the A/C pressure transducer to be removed
or installed without disturbing the refrigerant in the
system. The A/C pressure transducer is diagnosed
using a DRBIIItscan tool. Refer to the appropriate
diagnostic information.
DIAGNOSIS AND TESTING - A/C PRESSURE
TRANSDUCER
The A/C pressure transducer is tested using a
DRBIIItscan tool. Refer to the appropriate diagnos-
tic information. Before testing the A/C pressure
transducer, be certain that the transducer wire har-
ness connection is clean of corrosion and properly
connected. For the air conditioning system to operate,
an A/C pressure transducer voltage reading between
0.451 and 4.519 volts is required. Voltages outside
this range indicate a low or high refrigerant system
pressure condition to the Powertrain Control Module
(PCM). The PCM is programmed to respond to a low
or high refrigerant system pressure by suppressing
operation of the compressor. Refer to the A/C Pres-
sure Transducer Voltage table for the possible condi-
tion indicated by the transducer voltage readings.
A/C PRESSURE TRANSDUCER VOLTAGE
VOLTAGE POSSIBLE INDICATION
0.0 1. NO SENSOR SUPPLY
VOLTAGE FROM PCM.
2. SHORTED SENSOR CIRCUIT.
3. FAULTY TRANSDUCER.
0.150 TO 0.450 1. AMBIENT TEMPERATURE
BELOW 10É C (50É F).
2. LOW REFRIGERANT
SYSTEM PRESSURE.
0.451 TO 4.519 1. NORMAL REFRIGERANT
SYSTEM PRESSURE.
4.520 TO 4.850 1. HIGH REFRIGERANT
SYSTEM PRESSURE.
5.0 1. OPEN SENSOR CIRCUIT.
2. FAULTY TRANSDUCER.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
Fig. 2 A/C Pressure Transducer
1 - RIGHT FRONT STRUT TOWER
2 - CONNECTOR
3 - A/C PRESSURE TRANSDUCER
4 - RIGHT WIPER MODULE DRAIN TUBE
5 - HIGH SIDE SERVICE PORT
6 - LIQUID LINE
24 - 10 CONTROLS - FRONTRS
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