Chrysler Town, Dodge Caravan. Manual — part 535
Alternate Good Trip
Alternate Good Trips are used in place of Global
Good Trips for Comprehensive Components and
Major Monitors. If the Task Manager cannot run a
Global Good Trip because a component fault is stop-
ping the monitor from running, it will attempt to
count an Alternate Good Trip.
The Task Manager counts an Alternate Good Trip
for Comprehensive components when the following
conditions are met:
• Two minutes of engine run time, idle or driving
• No other faults occur
The Task Manager counts an Alternate Good Trip
for a Major Monitor when the monitor runs and
passes. Only the Major Monitor that failed needs to
pass to count an Alternate Good Trip.
Warm-Up Cycles
Once the MIL has been extinguished by the Good
Trip Counter, the PCM automatically switches to a
Warm-Up Cycle Counter that can be viewed on the
DRBIII
t. Warm-Up Cycles are used to erase DTCs
and Freeze Frames. Forty Warm-Up cycles must
occur in order for the PCM to self-erase a DTC and
Freeze Frame. A Warm-Up Cycle is defined as fol-
lows:
• Engine coolant temperature must start below
and rise above 160° F
• Engine coolant temperature must rise by 40° F
• No further faults occur
Freeze Frame Data Storage
Once a failure occurs, the Task Manager records
several engine operating conditions and stores it in a
Freeze Frame. The Freeze Frame is considered one
frame of information taken by an on-board data
recorder. When a fault occurs, the PCM stores the
input data from various sensors so that technicians
can determine under what vehicle operating condi-
tions the failure occurred.
The data stored in Freeze Frame is usually
recorded when a system fails the first time for two
trip faults. Freeze Frame data will only be overwrit-
ten by a different fault with a higher priority.
CAUTION: Erasing DTCs, either with the DRBIII
T
; or
by disconnecting the battery, also clears all Freeze
Frame data.
Similar Conditions Window
The Similar Conditions Window displays informa-
tion about engine operation during a monitor. Abso-
lute MAP (engine load) and Engine RPM are stored
in this window when a failure occurs. There are two
different Similar conditions Windows: Fuel System
and Misfire.
FUEL SYSTEM
• Fuel System Similar Conditions Window —
An indicator that ’Absolute MAP When Fuel Sys Fail’
and ’RPM When Fuel Sys Failed’ are all in the same
range when the failure occurred. Indicated by switch-
ing from ’NO’ to ’YES’.
• Absolute MAP When Fuel Sys Fail — The
stored MAP reading at the time of failure. Informs
the user at what engine load the failure occurred.
• Absolute MAP — A live reading of engine load
to aid the user in accessing the Similar Conditions
Window.
• RPM When Fuel Sys Fail — The stored RPM
reading at the time of failure. Informs the user at
what engine RPM the failure occurred.
• Engine RPM — A live reading of engine RPM
to aid the user in accessing the Similar Conditions
Window.
• Adaptive Memory Factor — The PCM utilizes
both Short Term Compensation and Long Term Adap-
tive to calculate the Adaptive Memory Factor for
total fuel correction.
• Upstream O2S Volts — A live reading of the
Oxygen Sensor to indicate its performance. For
example, stuck lean, stuck rich, etc.
• SCW Time in Window (Similar Conditions
Window Time in Window) — A timer used by the
PCM that indicates that, after all Similar Conditions
have been met, if there has been enough good engine
running time in the SCW without failure detected.
This timer is used to increment a Good Trip.
• Fuel System Good Trip Counter — A Trip
Counter used to turn OFF the MIL for Fuel System
DTCs. To increment a Fuel System Good Trip, the
engine must be in the Similar Conditions Window,
Adaptive Memory Factor must be less than cali-
brated threshold and the Adaptive Memory Factor
must stay below that threshold for a calibrated
amount of time.
• Test Done This Trip — Indicates that the
monitor has already been run and completed during
the current trip.
MISFIRE
• Same Misfire Warm-Up State — Indicates if
the misfire occurred when the engine was warmed up
(above 160° F).
• In Similar Misfire Window — An indicator
that ’Absolute MAP When Misfire Occurred’ and
’RPM When Misfire Occurred’ are all in the same
range when the failure occurred. Indicated by switch-
ing from ’NO’ to ’YES’.
• Absolute MAP When Misfire Occurred —
The stored MAP reading at the time of failure.
Informs the user at what engine load the failure
occurred.
25 - 26
ON-BOARD DIAGNOSTICS
RS
TASK MANAGER (Continued)
• Absolute MAP — A live reading of engine load
to aid the user in accessing the Similar Conditions
Window.
• RPM When Misfire Occurred — The stored
RPM reading at the time of failure. Informs the user
at what engine RPM the failure occurred.
• Engine RPM — A live reading of engine RPM
to aid the user in accessing the Similar Conditions
Window.
• Adaptive Memory Factor — The PCM utilizes
both Short Term Compensation and Long Term Adap-
tive to calculate the Adaptive Memory Factor for
total fuel correction.
• 200 Rev Counter — Counts 0–100 720 degree
cycles.
• SCW Cat 200 Rev Counter — Counts when in
similar conditions.
• SCW FTP 1000 Rev Counter — Counts 0–4
when in similar conditions.
• Misfire Good Trip Counter — Counts up to
three to turn OFF the MIL.
RS
ON-BOARD DIAGNOSTICS
25 - 27
TASK MANAGER (Continued)
ABS FASTENER TORQUE,
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 5-79
ABSORBER - DESCRIPTION, SHOCK . . . . . . . 2-36
ABSORBER - INSTALLATION, SHOCK
. . . . . . 2-38
ABSORBER - OPERATION, SHOCK
. . . . . . . . 2-36
ABSORBER - REMOVAL, SHOCK
. . . . . . . . . . 2-36
ABSORBER (UPPER BUSHING) -
ASSEMBLY, SHOCK . . . . . . . . . . . . . . . . . . . . 2-37
ABSORBER (UPPER BUSHING) -
DISASSEMBLY, SHOCK . . . . . . . . . . . . . . . . . 2-36
A/C COMPRESSOR - DESCRIPTION
. . . . . . 24-63
A/C COMPRESSOR - OPERATION
. . . . . . . . 24-63
A/C COOL DOWN TEST - DIAGNOSIS
AND TESTING . . . . . . . . . . . . . . . . . . . . . . . . 24-4
A/C DISTRIBUTION DUCT -
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 24-53
A/C DISTRIBUTION DUCT - REMOVAL
. . . . 24-53
A/C HEATER CONTROL - INSTALLATION . . . . 24-9
A/C HEATER CONTROL - REMOVAL
. . . . . . . 24-9
A/C PERFORMANCE TEST - DIAGNOSIS
AND TESTING . . . . . . . . . . . . . . . . . . . . . . . . 24-5
A/C PLUMBING - CAUTION
. . . . . . . . . . . . . 24-61
A/C PLUMBING - WARNING
. . . . . . . . . . . . 24-61
A/C PRESSURE TRANSDUCER -
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . 24-10
A/C PRESSURE TRANSDUCER -
DIAGNOSIS AND TESTING . . . . . . . . . . . . . 24-10
A/C PRESSURE TRANSDUCER -
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 24-11
A/C PRESSURE TRANSDUCER -
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . 24-10
A/C PRESSURE TRANSDUCER -
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . 24-10
ACCELERATOR PEDAL - INSTALLATION
. . . 14-24
ACCELERATOR PEDAL - REMOVAL
. . . . . . . 14-23
ACCESSORY DRIVE BELT - DIAGNOSIS
AND TESTING . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
ACCESSORY DRIVE BELT TENSION,
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . 7-5
ACCESSORY RELAY - DESCRIPTION
. . . 8W-97-2
ACCESSORY RELAY - DIAGNOSIS &
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . 8W-97-2
ACCESSORY RELAY - OPERATION
. . . . . 8W-97-2
ACCUMULATOR - DESCRIPTION
. . . . . . . . 21-188
ACCUMULATOR - OPERATION . . . . . . . . . . 21-189
A/C-HEATER CONTROL - INSTALLATION
. . . 24-29
A/C-HEATER CONTROL - REMOVAL
. . . . . . 24-29
ACTUATOR - DESCRIPTION, BLEND
DOOR . . . . . . . . . . . . . . . . . . . . . . . . 24-11,24-30
ACTUATOR - DESCRIPTION, ENGAGE
. . . . . 8N-10
ACTUATOR - DESCRIPTION, LATCH
. . . . . . 8N-14
ACTUATOR - DESCRIPTION, MODE
DOOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-24
ACTUATOR - DESCRIPTION,
RECIRCULATION DOOR . . . . . . . . . . . . . . . . 24-27
ACTUATOR - INSTALLATION, BLEND
DOOR . . . . . . . . . . . . . . . . . . . . . . . . 24-12,24-31
ACTUATOR - INSTALLATION, ENGAGE
. . . . 8N-11
ACTUATOR - INSTALLATION, LATCH
. . . . . 8N-14
ACTUATOR - INSTALLATION, MODE
DOOR . . . . . . . . . . . . . . . . . . . . . . . . 24-25,24-36
ACTUATOR - INSTALLATION,
RECIRCULATION DOOR . . . . . . . . . . . . . . . . 24-28
ACTUATOR - OPERATION, BLEND DOOR
. . 24-11,
24-30
ACTUATOR - OPERATION, ENGAGE
. . . . . . 8N-11
ACTUATOR - OPERATION, LATCH
. . . . . . . . 8N-14
ACTUATOR - OPERATION, MODE DOOR
. . . 24-24
ACTUATOR - OPERATION,
RECIRCULATION DOOR . . . . . . . . . . . . . . . . 24-27
ACTUATOR - REMOVAL, BLEND DOOR
. . . 24-12,
24-31
ACTUATOR - REMOVAL, ENGAGE
. . . . . . . . 8N-11
ACTUATOR - REMOVAL, LATCH
. . . . . . . . . 8N-14
ACTUATOR - REMOVAL, MODE DOOR
. . . . 24-25,
24-36
ACTUATOR - REMOVAL, RECIRCULATION
DOOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-27
ADAPTER - INSTALLATION, FRONT DISC
BRAKE CALIPER . . . . . . . . . . . . . . . . . . . . . . 5-31
ADAPTER - INSTALLATION, OIL FILTER
. . . 9-139
ADAPTER - REMOVAL, FRONT DISC
BRAKE CALIPER . . . . . . . . . . . . . . . . . . . . . . 5-31
ADAPTER - REMOVAL, OIL FILTER
. . . . . . . 9-139
ADAPTIVE MEMORIES, OPERATION -
FUEL CORRECTION OR . . . . . . . . . . . . . . . . 14-20
ADDING ADDITIONAL COOLANT -
STANDARD PROCEDURE . . . . . . . . . . . . . . . . . 7-5
ADDITIONAL COOLANT - STANDARD
PROCEDURE, ADDING . . . . . . . . . . . . . . . . . . . 7-5
ADHESIVE ATTACHED - INSTALLATION,
EXTERIOR NAME PLATES . . . . . . . . . . . . . . 23-50
ADHESIVE ATTACHED - REMOVAL,
EXTERIOR NAME PLATES . . . . . . . . . . . . . . 23-50
ADHESIVE LOCATIONS -
SPECIFICATIONS, STRUCTURAL . . . . . . . . 23-153
ADJUSTER - B OR C-PILLAR -
INSTALLATION, SEAT BELT HEIGHT . . . . . . 8O-12
ADJUSTER - B OR C-PILLAR -
REMOVAL, SEAT BELT HEIGHT . . . . . . . . . . 8O-12
ADJUSTER - DIAGNOSIS AND TESTING,
DRUM BRAKE AUTOMATIC . . . . . . . . . . . . . . 5-13
ADJUSTER - INSTALLATION, FRONT
SEAT TRACK MANUAL . . . . . . . . . . . . . . . . 23-94
ADJUSTER - INSTALLATION, FRONT
SEAT TRACK POWER . . . . . . . . . . . . . . . . . 23-94
ADJUSTER - REMOVAL, FRONT SEAT
TRACK MANUAL . . . . . . . . . . . . . . . . . . . . . 23-94
ADJUSTER - REMOVAL, FRONT SEAT
TRACK POWER . . . . . . . . . . . . . . . . . . . . . . 23-94
ADJUSTER KNOB - INSTALLATION, SEAT
BELT HEIGHT . . . . . . . . . . . . . . . . . . . . . . . 8O-13
ADJUSTER KNOB - REMOVAL, SEAT
BELT HEIGHT . . . . . . . . . . . . . . . . . . . . . . . 8O-13
ADJUSTER NOISE DIAGNOSIS -
DIAGNOSIS AND TESTING, HYDRAULIC
LASH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-34
ADJUSTER TENSION RELEASE -
STANDARD PROCEDURE, PARKING
BRAKE AUTOMATIC . . . . . . . . . . . . . . . . . . . . 5-58
ADJUSTER TENSION RESET -
STANDARD PROCEDURE, PARKING
BRAKE AUTOMATIC. . . . . . . . . . . . . . . . . . . . . 5-59
ADJUSTERS - INSTALLATION,
HYDRAULIC LASH . . . . . . . . . . . . . . . . . . . . . 9-34
ADJUSTERS - REMOVAL, HYDRAULIC
LASH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-34
AERATION - DIAGNOSIS AND TESTING,
COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . 7-3
AFTER AN AIRBAG DEPLOYMENT -
STANDARD PROCEDURE, SERVICE . . . . . . . 8O-3
AIR CLEANER ELEMENT - INSTALLATION
. . 9-24,
9-98
AIR CLEANER ELEMENT - REMOVAL
. . 9-24,9-98
AIR CLEANER HOUSING - INSTALLATION
. . 9-24,
9-99
AIR CLEANER HOUSING - REMOVAL
. . 9-24,9-99
AIR CONDITIONING LINES -
INSTALLATION, REAR . . . . . . . . . . . . . . . . 24-105
AIR CONDITIONING LINES - REMOVAL,
REAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-104
AIR CONTROL MOTOR - DESCRIPTION,
IDLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-28
AIR CONTROL MOTOR - INSTALLATION,
IDLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-29
AIR CONTROL MOTOR - OPERATION,
IDLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-28
AIR CONTROL MOTOR - REMOVAL, IDLE . . 14-29
AIR EXHAUSTER - DESCRIPTION, REAR
QUARTER PANEL/FENDER . . . . . . . . . . . . . . 23-56
AIR EXHAUSTER - INSTALLATION, REAR
QUARTER PANEL/FENDER . . . . . . . . . . . . . . 23-57
AIR EXHAUSTER - REMOVAL, REAR
QUARTER PANEL/FENDER . . . . . . . . . . . . . . 23-56
AIR FILTER - DESCRIPTION
. . . . . . . . . . . . 24-39
AIR FILTER - INSTALLATION
. . . . . . . . . . . . 24-40
AIR FILTER - REMOVAL
. . . . . . . . . . . . . . . 24-39
AIR GAP - STANDARD PROCEDURE,
COMPRESSOR CLUTCH . . . . . . . . . . . . . . . 24-17
AIR GAP, SPECIFICATIONS - WHEEL
SPEED SENSOR . . . . . . . . . . . . . . . . . . . . . . . 5-79
AIR INTAKE PIPE - INSTALLATION
. . . . . . 24-113
AIR INTAKE PIPE - REMOVAL
. . . . . . . . . . 24-112
AIR OUTLETS - DESCRIPTION
. . . . . 24-40,24-52
AIR OUTLETS - INSTALLATION
. . . . . . . . . . 24-52
AIR OUTLETS - REMOVAL
. . . . . . . . . . . . . 24-52
AIR PRESSURE TESTS - DIAGNOSIS
AND TESTING, CLUTCH . . . . . . . . . . . . . . . 21-122
AIR TEMPERATURE SENSOR -
DESCRIPTION, INLET . . . . . . . . . . . . . . . . . 14-29
AIR TEMPERATURE SENSOR -
OPERATION, INLET . . . . . . . . . . . . . . . . . . . 14-29
AIRBAG - DESCRIPTION, DRIVER
. . . . . . . . 8O-5
AIRBAG - DESCRIPTION, PASSENGER
. . . . . 8O-7
AIRBAG - DESCRIPTION, SEAT
. . . . . . . . . . 8O-10
AIRBAG - INSTALLATION, DRIVER
. . . . . . . . 8O-6
AIRBAG - INSTALLATION, PASSENGER
. . . . 8O-9
AIRBAG - OPERATION, DRIVER
. . . . . . . . . . 8O-5
AIRBAG - OPERATION, PASSENGER
. . . . . . . 8O-8
AIRBAG - OPERATION, SEAT
. . . . . . . . . . . 8O-11
AIRBAG - REMOVAL, DRIVER
. . . . . . . . . . . . 8O-5
AIRBAG - REMOVAL, PASSENGER
. . . . . . . . 8O-8
AIRBAG CONTROL MODULE -
DESCRIPTION, SIDE IMPACT . . . . . . . . . . . 8O-17
AIRBAG CONTROL MODULE -
INSTALLATION, SIDE IMPACT . . . . . . . . . . . 8O-17
AIRBAG CONTROL MODULE -
OPERATION, SIDE IMPACT . . . . . . . . . . . . . 8O-17
AIRBAG CONTROL MODULE - REMOVAL,
SIDE IMPACT . . . . . . . . . . . . . . . . . . . . . . . 8O-17
AIRBAG DEPLOYMENT - STANDARD
PROCEDURE, SERVICE AFTER AN . . . . . . . . 8O-3
AIRBAG SYSTEM - DIAGNOSIS AND
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8O-2
AIRBAG TRIM COVER - INSTALLATION,
DRIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8O-7
AIRBAG TRIM COVER - REMOVAL,
DRIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8O-6
AIRBAGS - STANDARD PROCEDURE,
HANDLING . . . . . . . . . . . . . . . . . . . . . . . . . . 8O-3
AJAR SWITCH - EXPORT -
INSTALLATION, HOOD . . . . . . . . . . . . . . . . . 8Q-3
AJAR SWITCH - EXPORT - REMOVAL,
HOOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Q-3
ALIGNMENT - DESCRIPTION, WHEEL
. . . . . . 2-46
ALIGNMENT - EXPORT - STANDARD
PROCEDURE, FRONT FOG LAMP UNIT . . . . . 8L-9
ALIGNMENT - EXPORT - STANDARD
PROCEDURE, HEADLAMP UNIT . . . . . . . . . 8L-17
ALIGNMENT - STANDARD PROCEDURE,
FRONT FOG LAMP UNIT . . . . . . . . . . . . . . . . 8L-9
ALIGNMENT - STANDARD PROCEDURE,
FRONT WIPER ARM . . . . . . . . . . . . . . . . . . . 8R-8
ALIGNMENT - STANDARD PROCEDURE,
HEADLAMP UNIT . . . . . . . . . . . . . . . . . . . . . 8L-17
ALIGNMENT - STANDARD PROCEDURE,
WHEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51
ALIGNMENT, SPECIFICATIONS - WHEEL
. . . . 2-55
ALUMINUM WHEEL CARE - CLEANING
. . . 22-18
AMBIENT TEMP SENSOR - DESCRIPTION
. 8M-11
AMBIENT TEMP SENSOR - OPERATION
. . 8M-11
AMBIENT TEMPERATURE SENSOR -
DIAGNOSIS AND TESTING . . . . . . . . . . . . . 8M-12
AMBIENT TEMPERATURE SENSOR
CIRCUIT - DIAGNOSIS AND TESTING . . . . 8M-12
AN AIRBAG DEPLOYMENT - STANDARD
PROCEDURE, SERVICE AFTER . . . . . . . . . . . 8O-3
ANTENNA - EXPORT - DESCRIPTION,
QUARTER GLASS INTEGRAL . . . . . . . . . . . . 8A-9
ANTENNA - EXPORT - DIAGNOSIS AND
TESTING, QUARTER GLASS INTEGRAL . . . . 8A-9
ANTENNA - EXPORT - OPERATION,
QUARTER GLASS INTEGRAL . . . . . . . . . . . . 8A-9
ANTENNA BODY AND CABLE -
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . 8A-4
ANTENNA BODY AND CABLE -
DIAGNOSIS AND TESTING . . . . . . . . . . . . . . 8A-4
ANTENNA BODY AND CABLE -
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 8A-6
ANTENNA BODY AND CABLE -
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 8A-4
ANTENNA BODY AND CABLE - REMOVAL
. . 8A-5
ANTENNA CABLE - INSTALLATION,
INSTRUMENT PANEL . . . . . . . . . . . . . . . . . . 8A-9
ANTENNA CABLE - REMOVAL,
INSTRUMENT PANEL . . . . . . . . . . . . . . . . . . 8A-8
ANTENNA MODULE - EXPORT -
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . 8A-6
ANTENNA MODULE - EXPORT -
DIAGNOSIS AND TESTING . . . . . . . . . . . . . . 8A-7
ANTENNA MODULE - EXPORT -
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . 8A-7
ANTENNA MODULE - EXPORT -
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 8A-6
ANTENNA MODULE - EXPORT -
REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . 8A-7
ANTILOCK BRAKE - DESCRIPTION,
CONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . 8E-5
ANTILOCK BRAKE - INSTALLATION,
CONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . 8E-6
ANTILOCK BRAKE - OPERATION,
CONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . 8E-5
ANTILOCK BRAKE - REMOVAL,
CONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . 8E-6
RS
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