2001 CHRYSLER VOYAGER key

TABLE OF CONTENTS - Continued
3.9.2.1SYSTEM AVAILABILITY....................................17
3.9.2.2CABIN HEATER..........................................17
3.9.2.3ZONE CONTROL ± SINGLE-ZONE...........................17
3.9.2.4ZONE CONTROL ± DUAL-ZONE.............................17
3.9.2.5AIR DISTRIBUTION.......................................17
3.9.2.6DOOR ACTUATORS.......................................17
3.9.2.7DOOR ACTUATOR CONTROL..............................17
3.9.2.8HVAC SYSTEM RELAYS...................................18
3.9.2.9EVAPORATOR TEMPERATURE SENSOR.....................18
3.9.2.10A/C ± HEATER CONTROL MODULE, SWITCH OPERATION......18
3.9.2.11HVAC DIAGNOSTICS.....................................19
3.10CABIN HEATER...................................................19
3.10.1GENERAL SAFETY INFORMATION..........................19
3.10.2COMPONENT DESCRIPTION AND OPERATION...............19
3.10.2.1DCHA ASSEMBLY.........................................19
3.10.2.2COMBUSTION AIR FAN...................................20
3.10.2.3BURNER HOUSING.......................................20
3.10.2.4BURNER INSERT.........................................20
3.10.2.5CONTROL UNIT/HEAT EXCHANGER.........................20
3.10.2.6DOSING PUMP...........................................20
3.10.3OPERATION.............................................20
3.10.3.1ACTIVATION.............................................20
3.10.3.2HEATING................................................21
3.10.3.3DEACTIVATION...........................................21
3.10.4DIAGNOSTICS...........................................21
3.11INSTRUMENT CLUSTER............................................21
3.11.1INSTRUMENT CLUSTER SELF TEST........................22
3.11.2MESSAGE CENTER.......................................22
3.12INTERIOR LIGHTING...............................................22
3.12.1COURTESY LAMP CONTROL...............................22
3.12.2ILLUMINATED ENTRY.....................................22
3.12.3INTERIOR LIGHTING BATTERY SAVER......................22
3.13MEMORY SYSTEM.................................................22
3.13.1POWER SEAT............................................22
3.13.2MEMORY MIRRORS.......................................23
3.14OVERHEAD CONSOLE.............................................23
3.14.1COMPASS/MINI-TRIP COMPUTER (CMTC)....................23
3.14.2ELECTRONIC VEHICLE INFORMATION CENTER (EVIC)........23
3.14.3SETTING THE COMPASS..................................23
3.14.4SETTING THE VARIANCE..................................23
3.15POWER DOOR LOCK SYSTEM......................................24
3.15.1SLIDING DOOR MEMORY LOCK............................24
3.15.2DOOR LOCK INHIBIT......................................24
3.15.3AUTOMATIC DOOR LOCKS................................24
3.15.4REMOTE KEYLESS ENTRY (RKE)...........................24
3.16POWER FOLDING MIRRORS........................................24
3.17POWER LIFTGATE SYSTEM.........................................25
3.17.1POWER LIFTGATE........................................25
3.17.2DIAGNOSTIC FEATURES..................................25
3.17.3SYSTEM INHIBITORS.....................................25
3.18POWER SLIDING DOOR SYSTEM....................................25
3.18.1POWER SLIDING DOOR...................................25
3.18.2DIAGNOSTIC FEATURES..................................26
ii

TABLE OF CONTENTS - Continued
REMOTE RADIO SWITCH OPEN OR *REMOTE RADIO CONTROLS
INOPERATIVE.........................................................217
REMOTE RADIO SWITCH STUCK........................................219
RIGHT OUTPUT SHORT................................................222
AUTOMATIC TEMPERATURE CONTROL
AC PRESSURE TOO HIGH (ACTIVE)......................................225
AC PRESSURE TOO LOW (ACTIVE)......................................225
AC PRESSURE TOO HIGH (STORED).....................................226
AC PRESSURE TOO LOW (STORED).....................................226
DRIVER BLEND DOOR NOT RESPONDING (STORED)......................226
DRIVER BLEND DOOR RANGE TOO LARGE (STORED).....................226
DRIVER BLEND DOOR TRAVEL TOO SMALL (STORED).....................226
FRONT IR SENSOR AND CONTROL HEAD MISMATCH (STORED).............226
FRONT IR SENSOR CHANGE TOO LARGE (STORED).......................226
FRONT IR SENSOR HIGH (STORED).....................................226
FRONT IR SENSOR LOW (STORED)......................................226
FRONT IR SENSOR NOT CALIBRATED (STORED)..........................226
FRONT KEYBOARD COMMUNICATION FAULT (STORED)....................226
FRONT KEYBOARD FAULT (STORED)....................................226
FRONT MODE DOOR NOT RESPONDING (STORED)........................226
FRONT MODE DOOR TRAVEL TOO LARGE (STORED)......................226
FRONT MODE DOOR TRAVEL TOO SMALL (STORED)......................226
PASS BLEND DOOR NOT RESPONDING (STORED).........................226
PASS BLEND DOOR TRAVEL TOO LARGE (STORED).......................226
PASS BLEND DOOR TRAVEL TOO SMALL (STORED).......................226
PCI BUS SHORTED HIGH (STORED).....................................226
PCI BUS SHORTED LOW (STORED)......................................226
REAR BLEND DOOR NOT RESPONDING (STORED)........................226
REAR BLEND DOOR RANGE TOO LARGE (STORED).......................226
REAR BLEND DOOR TRAVEL TOO SMALL (STORED).......................226
REAR FAN POT OPEN (STORED)........................................226
REAR FAN POT SHORTED (STORED)....................................226
REAR IR SENSOR HIGH (STORED)......................................226
REAR IR SENSOR LOW (STORED).......................................226
REAR IR SENSOR NOT CALIBRATED (STORED)...........................226
REAR KEYBOARD FAULT (STORED).....................................226
REAR MODE DOOR NOT RESPONDING (STORED).........................226
REAR MODE DOOR TRAVEL TOO LARGE (STORED).......................226
REAR MODE DOOR TRAVEL TOO SMALL (STORED)........................226
REAR MODE POT OPEN (STORED)......................................226
REAR MODE POT SHORTED (STORED)..................................226
RECIRC DOOR NOT RESPONDING (STORED).............................226
RECIRC DOOR TRAVEL TOO LARGE (STORED)............................226
RECIRC DOOR TRAVEL TOO SMALL (STORED)............................226
COOLDOWN TEST FAILED..............................................232
DRIVER BLEND DOOR NOT RESPONDING (ACTIVE).......................234
DRIVER BLEND DOOR TRAVEL TOO LARGE (ACTIVE)......................236
DRIVER BLEND DOOR TRAVEL TOO SMALL (ACTIVE)......................238
EEPROM CHECKSUM ERROR (ACTIVE)..................................240
EVAP TEMP SENSOR OPEN............................................241
EVAP TEMP SENSOR SHORTED.........................................243
FRONT IR SENSOR AND CONTROL HEAD MISMATCH (ACTIVE)..............245
viii

TABLE OF CONTENTS - Continued
FRONT IR SENSOR CHANGE TOO LARGE (ACTIVE)........................245
FRONT IR SENSOR HIGH (ACTIVE)......................................245
FRONT IR SENSOR LOW (ACTIVE).......................................245
FRONT IR SENSOR NOT CALIBRATED (ACTIVE)...........................246
FRONT KEYBOARD FAULT (ACTIVE).....................................246
FRONT KEYBOARD COMMUNICATION FAULT (ACTIVE).....................251
FRONT MODE DOOR NOT RESPONDING (ACTIVE).........................252
FRONT MODE DOOR TRAVEL TOO LARGE (ACTIVE).......................254
FRONT MODE DOOR TRAVEL TOO SMALL (ACTIVE).......................256
INVALID CONDITIONS FOR COOLDOWN TEST, EVAP TEMPERATURE TOO
LOW.................................................................258
PASS BLEND DOOR NOT RESPONDING (ACTIVE)..........................261
PASS BLEND DOOR TRAVEL TOO LARGE (ACTIVE)........................263
PASS BLEND DOOR TRAVEL TOO SMALL (ACTIVE)........................265
PCI BUS SHORTED HIGH (ACTIVE)......................................267
PCI BUS SHORTED LOW (ACTIVE).......................................267
REAR BLEND DOOR NOT RESPONDING (ACTIVE).........................268
REAR BLEND DOOR TRAVEL TOO LARGE (ACTIVE)........................270
REAR BLEND DOOR TRAVEL TOO SMALL (ACTIVE)........................272
REAR FAN POT OPEN (ACTIVE).........................................274
REAR FAN POT SHORTED (ACTIVE).....................................274
REAR IR SENSOR HIGH (ACTIVE).......................................274
REAR IR SENSOR LOW (ACTIVE)........................................274
REAR MODE POT OPEN (ACTIVE).......................................274
REAR MODE POT SHORTED (ACTIVE)...................................274
REAR IR SENSOR NOT CALIBRATED (ACTIVE)............................276
REAR KEYBOARD FAULT (ACTIVE)......................................280
REAR MODE DOOR NOT RESPONDING (ACTIVE)..........................284
REAR MODE DOOR TRAVEL TOO LARGE (ACTIVE)........................286
REAR MODE DOOR TRAVEL TOO SMALL (ACTIVE).........................288
RECIRC DOOR NOT RESPONDING (ACTIVE)..............................290
RECIRC DOOR TRAVEL TOO LARGE (ACTIVE).............................292
RECIRC DOOR TRAVEL TOO SMALL (ACTIVE).............................294
CABIN HEATER
CABIN HEATER PRE-TEST..............................................296
CABIN HEATER CONTROL CIRCUIT OPEN (STORED).......................296
CABIN HEATER CONTROL CIRCUIT SHORT TO BATTERY (STORED)..........296
B1000 CONTROL UNIT ERRONEOUS.....................................299
B1800 NO START......................................................300
B1801 FLAME OUT: DURING HEATING CYCLE.............................300
B1801 FLAME OUT: UNSTABLE OPERATION...............................300
B1802 POWER SUPPLY OUT OF RANGE: LOW VOLTAGE THRESHOLD........304
B1802 POWER SUPPLY OUT OF RANGE: VOLTAGE ABOVE 15.5 VOLTS.......307
B1803 FLAME DETECTED PRIOR TO COMBUSTION........................308
B1811 HEATER OVERHEATED...........................................309
B1813 HEATER IN LOCKOUT MODE......................................313
B1820 DOSING PUMP CIRCUIT: OPEN OR SHORT TO BATTERY.............315
B1820 DOSING PUMP CIRCUIT: SHORT TO GROUND.......................318
B1821 COMBUSTION AIR FAN CIRCUIT: OPEN.............................321
B1821 COMBUSTION AIR FAN CIRCUIT: SHORT TO GROUND................321
B1822 GLOW PIN/FLAME SENSOR: OPEN................................322
B1822 GLOW PIN/FLAME SENSOR: SHORT TO GROUND...................322
ix

TABLE OF CONTENTS - Continued
B1823 WATER PUMP CIRCUIT: OPEN.....................................323
B1823 WATER PUMP CIRCUIT: SHORT TO GROUND........................323
B1824 FAN SWITCH LINE SHORT TO GROUND............................324
CABIN HEATER CONTROL CIRCUIT OPEN (ACTIVE)........................325
CABIN HEATER CONTROL CIRCUIT SHORT TO BATTERY (ACTIVE)...........329
*CABIN HEATER INOPERABLE FROM A/C - HEATER MODULE...............332
CHIME
*CHIME INOPERATIVE..................................................334
*KEY IN IGNITION AND DRIVER'S DOOR OPEN CHIME NOT OPERATING
PROPERLY...........................................................336
*PROBLEM WITH THE HIGH VEHICLE SPEED WARNING CHIME.............337
COMMUNICATION
ATC MESSAGES NOT RECEIVED........................................338
AUDIO MESSAGES NOT RECEIVED......................................339
BCM, PCI BUS SHORTED TO BATTERY...................................340
BCM, PCI BUS SHORTED TO GROUND...................................340
FCM, PCI BUS SHORTED TO BATTERY...................................340
FCM, PCI BUS SHORTED TO GROUND...................................340
COUNTRY CODE NOT PROGRAMMED...................................342
FCM MESSAGES NOT RECEIVED........................................343
FCM, BCM COMMUNICATION FAULT.....................................344
FCM, HVAC COMMUNICATION FAULT....................................345
FCM, PCI INTERNAL FAULT.............................................346
FCM, PCM COMMUNICATION FAULT.....................................347
FCM, RADIO COMMUNICATION FAULT...................................348
FCM, TCM COMMUNICATION FAULT.....................................349
IGNITION MUX SWITCH INPUT OPEN....................................350
IGNITION MUX SWITCH INPUT SHORT...................................352
IGNITION RUN OUTPUT SHORT.........................................353
INTERNAL BCM FAILURE...............................................357
LEFT PSD MESSAGES NOT RECEIVED...................................358
LIFTGATE MODULE MESSAGES NOT RECEIVED...........................359
MIC MESSAGES NOT RECEIVED........................................360
MSM MESSAGES NOT RECEIVED.......................................361
NO PCI MESSAGES FROM CD CHANGER.................................362
ORC MESSAGES NOT RECEIVED........................................364
OTIS MESSAGES NOT RECEIVED.......................................365
PCI INTERNAL HARDWARE FAILURE.....................................366
PCM MESSAGES NOT RECEIVED........................................367
RADIO MEM MSG NOT RECEIVED.......................................368
RIGHT PSD MESSAGES NOT RECEIVED..................................369
RUN/START HARDWIRE INPUT FAILURE..................................370
SKIM MESSAGES NOT RECEIVED.......................................371
TCM MESSAGES NOT RECEIVED........................................372
*BUS +/- SIGNALS OPEN FROM AUTOMATIC TEMPERATURE CONTROL
MODULE.............................................................373
*BUS +/- SIGNALS OPEN FROM MEMORY SEAT/MIRROR MODULE...........375
*BUS +/- SIGNALS OPEN FROM SENTRY KEY IMMOBILIZER MODULE........377
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM BODY CONTROL
MODULE.............................................................379
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM HVAC..................381
x

TABLE OF CONTENTS - Continued
8.4.2ACTUATOR ± FRONT RHD................................997
8.4.3ACTUATOR ± FRONT LHD................................997
8.4.4ACTUATOR ± FRONT RHD................................998
8.4.5EVAPORATOR TEMPERATURE SENSOR LHD................998
8.4.6EVAPORATOR TEMPERATURE SENSOR RHD...............999
8.4.7C202 CONNECTOR......................................999
8.4.8ACTUATORS ± REAR...................................1000
8.4.9REAR A/C HEATER UNIT CONNECTOR....................1000
8.5CABIN HEATER.................................................1001
8.5.1DIESEL CABIN HEATER ASSIST (CABIN HEATER) ASSEMBLY .1001
8.5.2C331 CONNECTOR.....................................1001
8.5.3C330 CONNECTOR.....................................1002
8.7MEMORY SYSTEM...............................................1002
8.7.1MEMORY SEAT MIRROR MEDULE/SEAT MOTORS..........1002
8.7.2MEMORY SEAT MIRROR MODULE CIRCUIT BREAKER.......1003
8.8OVERHEAD SWITCHES..........................................1003
8.9POWER FOLDING MIRRORS......................................1003
8.10POWER LIFTGATE SYSTEM.......................................1004
8.10.1MODULE..............................................1004
8.10.2PINCH SENSORS (TAPE SWITCH)........................1004
8.10.3LATCH ASSEMBLY......................................1005
8.11POWER DOOR LOCK/RKE SYSTEM................................1005
8.11.1DOOR LOCK MOTOR/AJAR SWITCH......................1005
8.11.1CYLINDER LOCK SWITCH...............................1005
8.11.3REMOTE KEYLESS ENTRY MODULE......................1006
8.12POWER SLIDING DOOR..........................................1006
8.12.1MODULE..............................................1006
8.12.2LOWER DRIVE UNIT....................................1006
8.12.3LATCH ASSEMBLY......................................1007
8.13VEHICLE THEFT SECURITY SYSTEM...............................1007
8.13.1RKE/THATCHAM ALARM MODULE........................1007
8.13.2RKE/THATCHAM ALARM MODULE CONNECTORS...........1007
8.13.3VTSS LED.............................................1008
8.13.4VTSS SIREN...........................................1008
8.13.5FRONT INTRUSION SENSOR.............................1009
8.13.6REAR INTRUSION SENSOR.............................1009
9.0 CONNECTOR PINOUTS...............................................1011
A/C-HEATER CONTROL C1 (MTC) - BLACK/RED 20 WAY...................1011
A/C-HEATER CONTROL C2 (MTC) - BLACK/BLUE 10 WAY..................1011
AMBIENT TEMP SENSOR (EXCEPT BASE) - BLACK 2 WAY.................1011
ATC REMOTE SENSOR (ATC)-4WAY...................................1012
AUTO TEMP CONTROL C1 - WHITE 13 WAY..............................1012
AUTO TEMP CONTROL C2 - BLACK 13 WAY..............................1012
AUTO TEMP CONTROL C3-4WAY.....................................1012
BLOWER MOTOR RESISTOR C1 (MTC) - BLACK 6 WAY....................1013
BLOWER MOTOR RESISTOR C2 (MTC) - BLACK 2 WAY....................1013
BODY CONTROL MODULE C1 - BLACK/BLACK 6 WAY.....................1013
BODY CONTROL MODULE C2 - BLACK/GREEN 34 WAY....................1014
BODY CONTROL MODULE C3 - BLACK/WHITE 34 WAY....................1015
BODY CONTROL MODULE C4 - BLACK/GRAY 34 WAY.....................1016
BODY CONTROL MODULE C5 - BLACK/BLACK 34 WAY....................1017
xix

TABLE OF CONTENTS - Continued
FRONT BLOWER MOTOR RELAY.......................................1066
FRONT CONTROL MODULE - BLACK 49 WAY.............................1067
FRONT FOG LAMP RELAY.............................................1068
HEADLAMP WASHER RELAY (BUILT-UP-EXPORT).........................1068
NAME BRAND SPEAKER RELAY........................................1068
PARK LAMP RELAY...................................................1068
POSITIVE TEMPERATURE COEFFICIENTS...............................1068
REAR BLOWER MOTOR RELAY........................................1068
POWER FOLDING MIRROR SWITCH (BUILT-UP-EXPORT) - BLACK 2 WAY. . . .1069
POWER LIFTGATE MODULE C1 - BLACK 8 WAY..........................1069
POWER LIFTGATE MODULE C2 - BLACK/RED 20 WAY.....................1069
POWER LIFTGATE MOTOR - BLACK 10 WAY.............................1070
POWER SEAT CIRCUIT BREAKER (30A) - GRAY 2 WAY....................1070
POWERTRAIN CONTROL MODULE C1 (2.4L/3.3L/3.8L) - GRAY/BLACK
40-WAY.............................................................1071
POWERTRAIN CONTROL MODULE C2 (2.4L/3.3L/3.8L) - GRAY/GRAY 40 WAY .1072
RADIO C1 - GRAY 7 WAY..............................................1073
RADIO C2 - BLACK 7 WAY.............................................1073
RADIO C3 - WHITE/RED 2 WAY.........................................1073
RADIO C4-8WAY....................................................1074
RADIO CHOKE - LT. GRAY 2 WAY.......................................1074
REAR A/C-HEATER UNIT (3 ZONE HVAC) - LT. GREEN 10 WAY..............1074
REAR AUTO TEMP CONTROL SWITCH (ATC) - BLACK 13 WAY..............1075
REAR BLOWER MOTOR POWER MODULE C1 (ATC) - RED/BLACK 4 WAY. . . .1075
REAR BLOWER MOTOR POWER MODULE C2 (ATC) - BLACK 2 WAY.........1075
REAR DOME LAMP (EXCEPT LUXURY) - GRAY 3 WAY.....................1075
REAR MODE MOTOR (ATC) - GRAY 2 WAY...............................1076
REAR TEMPERATURE MOTOR (ATC) - GRAY 2 WAY.......................1076
RECIRCULATION DOOR ACTUATOR (ATC) - GRAY 2 WAY..................1076
RECIRCULATION DOOR ACTUATOR (MTC) - GRAY 2 WAY..................1076
REMOTE KEYLESS ENTRY ANTENNA (JAPAN) - BLACK 2 WAY..............1077
REMOTE KEYLESS ENTRY MODULE - BLACK/RED 6 WAY.................1077
RIGHT B-PILLAR SWITCH - GRAY 3 WAY.................................1077
RIGHT CINCH/RELEASE MOTOR (POWER SLIDING DOOR) - GRAY 4 WAY. . . .1077
RIGHT CYLINDER LOCK SWITCH - BLACK 2 WAY.........................1078
RIGHT DOOR SPEAKER - BLACK/RED 6 WAY............................1078
RIGHT FOG LAMP - WHITE 2 WAY......................................1078
RIGHT FRONT DOOR LOCK MOTOR/AJAR SWITCH (EXCEPT BASE) -
BLACK 4 WAY........................................................1078
RIGHT FRONT PARK/TURN SIGNAL LAMP (EXCEPT BUILT-UP-EXPORT) -
BLACK 3 WAY........................................................1079
RIGHT FULL OPEN SWITCH (POWER SLIDING DOOR) - BLACK 2 WAY.......1079
RIGHT HEADLAMP (EXCEPT BUILT-UP-EXPORT) - BLACK 3 WAY............1079
RIGHT HIGH BEAM LAMP (BUILT-UP-EXPORT) - BLACK 2 WAY..............1079
RIGHT INSTRUMENT PANEL SPEAKER - BLACK 2 WAY....................1080
RIGHT LOW BEAM LAMP (BUILT-UP-EXPORT) - BLACK 2 WAY..............1080
RIGHT PARK LAMP (BUILT-UP-EXPORT) - BLACK 2 WAY...................1080
RIGHT POWER MIRROR - BLACK 12 WAY................................1080
RIGHT REAR PILLAR SPEAKER - BLACK 2 WAY..........................1081
RIGHT REAR SPEAKER - BLACK/RED 6 WAY.............................1081
RIGHT REMOTE RADIO SWITCH - BLACK 2 WAY.........................1081
RIGHT SEAT AIRBAG - YELLOW 2 WAY..................................1081
RIGHT SIDE IMPACT AIRBAG CONTROL MODULE - YELLOW/RED 7 WAY.....1081
xxiii

TABLE OF CONTENTS - Continued
RIGHT SLIDING DOOR CONTROL MODULE C1 (POWER SLIDING DOOR) - BLACK
8 WAY ..............................................................1082
RIGHT SLIDING DOOR CONTROL MODULE C2 (POWER SLIDING DOOR) -
BLACK/RED 20 WAY..................................................1082
RIGHT SLIDING DOOR LATCH SENSING SWITCH (POWER SLIDING DOOR) -
BLACK 6 WAY........................................................1082
RIGHT SLIDING DOOR LOCK MOTOR (POWER SLIDING DOOR) - BLACK 4
WAY................................................................1083
RIGHT SLIDING DOOR LOCK MOTOR/AJAR SWITCH (MANUAL SLIDING DOOR) -
BLACK 4 WAY........................................................1083
RIGHT SLIDING DOOR MOTOR (POWER SLIDING DOOR) - BLACK 8 WAY. . . .1083
SENTRY KEY IMMOBILIZER MODULE - BLACK 6 WAY.....................1083
SIREN (UNITED KINGDOM) - BLACK 4 WAY..............................1083
THATCHAM ALARM MODULE C1 (UNITED KINGDOM) - BLACK 16 WAY.......1084
THATCHAM ALARM MODULE C2 (UNITED KINGDOM) - WHITE 4 WAY........1084
TRANSMISSION CONTROL MODULE (EATX) - BLACK 60 WAY..............1085
TXV SOLENOID (ATC)-2WAY.........................................1086
10.0 SCHEMATIC DIAGRAMS...............................................1087
10.1AIRBAG SYSTEM................................................1087
10.2AUDIO SYSTEM.................................................1088
10.2.1PREMIUM.............................................1088
10.2.2BASE.................................................1089
10.2.3CD CHANGER.........................................1090
10.2.4REMOTE RADIO CONTROLS.............................1091
10.3CABIN HEATER.................................................1092
10.4AUTOMATIC TEMPERATURE CONTROL SYSTEM....................1093
10.4.1FRONT ATC............................................1093
10.4.2REAR ATC.............................................1094
10.5COMMUNICATION...............................................1095
10.5.1PCM COMMUNICATION.................................1096
10.5.2ECM & CABIN HEATER ASSIST COMMUNICATION - DIESEL
ONLY.................................................1096
10.6DOOR AJAR WITH POWER SLIDING DOORS........................1097
10.7DOOR AJAR WITHOUT POWER SLIDING DOORS....................1098
10.8EXTERIOR LIGHTING............................................1099
10.9IGNITION SWITCH...............................................1100
10.10INSTRUMENT CLUSTER Ð BASE..................................1101
10.11INSTRUMENT CLUSTER & MESSAGE CENTER......................1102
10.12INTELLIGENT POWER MODULE/BODY CONTROL MODULE POWER AND
GROUNDS......................................................1103
10.13INTERIOR LIGHTING.............................................1104
10.14MANUAL TEMPERATURE CONTROLS..............................1105
10.14.1BASE MANUAL TEMPERATURE CONTROL SYSTEM LHD.....1105
10.14.2BASE MANUAL TEMPERATURE CONTROL SYSTEM RHD....1106
10.14.3DUAL-ZONE MANUAL TEMPERATURE CONTROL SYSTEM
LHD ..................................................1107
10.14.4DUAL-ZONE MANUAL TEMPERATURE CONTROL SYSTEM
RHD..................................................1108
10.14.5BLOWER MOTOR.......................................1109
10.15MEMORY SYSTEM...............................................1110
10.16OVERHEAD CONSOLE...........................................1111
xxiv

mitted on the bus even though a module may not
require all information to perform its function. It
will only respond to messages ªaddressedº to it
through binary coding process. This method of data
transmission significantly reduces the complexity
of the wiring in the vehicle and the size of wiring
harnesses. All of the information about the func-
tioning of all the systems is organized, controlled,
and communicated by the PCI bus, which is de-
scribed in the Communication Section of this gen-
eral information.
3.1 AIRBAG SYSTEM/OCCUPANT
RESTRAINT CONTROLLER SYSTEM
The 2001 Minivan Airbag System contain the
following components: Occupant Restraint Control-
ler (ORC), Airbag Warning Indicator, Clockspring,
Driver and Passenger Airbags, Seat belt Tensioners
(SBT), Hall-effect Seat Belt Switches (SBS), Left
and Right Side Airbag Control Module (SIACM),
and Seat (mounted side) Airbags.
The Occupant Restraint Controller (ORC) is a
new type of Airbag Control Module (ACM) that
supports staged airbag deployment. Staged deploy-
ment is the ability to trigger airbag system squib
inflators all at once or individually as needed to
provide the appropriate restraint for the severity of
the impact. The ORC has four major functions: PCI
Bus communications, onboard diagnostics, impact
sensing, and component deployment. The ORC also
contains an energy-storage capacitor. This capaci-
tor stores enough electrical energy to deploy the
front airbag components for two seconds following a
battery disconnect or failure during an impact. The
ORC is secured to the floor panel transmission
tunnel below the instrument panel inside the vehi-
cle. The ORC cannot be repaired or adjusted and
must be replaced.
The ORC sends and/or receives PCI Bus mes-
sages with the Instrument Cluster (MIC), Body
Control Module (BCM), and Powertrain Control
Module (PCM). Diagnostic trouble codes will be set
if the communication with these modules is lost or
contains invalid information.
The microprocessor in the ORC monitors the
impact sensor signal and the airbag system electri-
cal circuits to determine the system readiness. The
ORC also monitors bus messages from both SIACM.
If the ORC detects a monitored system fault or
SIACM fault, it sends a message to the instrument
cluster via PCI bus to turn on the airbag warning
indicator. The ORC can set both active and stored
diagnostic trouble codes to aid in the diagnosing
system problems. See ORC/SIACM DIAGNOSTIC
TROUBLE CODES in this section.
The ORC has an internal accelerometer that
senses the rate of vehicle deceleration, which pro-vides verification of the direction and severity of an
impact. A pre-programmed decision algorithm in
the ORC microprocessor determines when the de-
celeration rate is severe enough to require airbag
system protection. The Occupant Restraint Control-
ler (ORC) also uses the driver and front passenger
seat belt switch status (buckled or unbuckled) as
inputs to determine the level of airbag deployment,
low, medium, or high as well as whether or not the
seat belt tensioners should deploy. The ORC also
uses the crash severity to determine the level of
driver and front passenger deployment, low me-
dium or high. When the programmed conditions are
met, the ORC sends an electrical signal to deploy
the appropriate airbag system components.WARNING: THE AIRBAG SYSTEM IS A
SENSITIVE, COMPLEX ELECTRO-
MECHANICAL UNIT. BEFORE ATTEMPTING
TO DIAGNOSE OR SERVICE ANY AIRBAG
SYSTEM OR RELATED STEERING WHEEL,
STEERING COLUMN, OR INSTRUMENT
PANEL COMPONENTS YOU MUST FIRST
DISCONNECT AND ISOLATE THE BATTERY
NEGATIVE (GROUND) CABLE. WAIT TWO
MINUTES FOR THE SYSTEM CAPACITOR TO
DISCHARGE BEFORE FURTHER SYSTEM
SERVICE. THIS IS THE ONLY SURE WAY TO
DISABLE THE AIRBAG SYSTEM. FAILURE
TO DO THIS COULD RESULT IS ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY. NEVER STRIKE OR
KICK THE AIRBAG CONTROL MODULE, AS
IT CAN DAMAGE THE IMPACT SENSOR OR
AFFECT ITS CALIBRATION. IF AN AIRBAG
CONTROL MODULE IS ACCIDENTALLY
DROPPED DURING SERVICE, THE MODULE
MUST BE SCRAPPED AND REPLACED WITH
A NEW UNIT.
The airbag warning lamp is the only point at
which the customer can observe symptoms of a
system malfunction. Whenever the ignition key is
turned to the run or start position, the MIC per-
forms a lamp check by turning the airbag warning
indicator on for 6-8 seconds. After the lamp check, if
the indicator turns on, it means that the ORC has
checked the system and found it to be free of
discernible malfunctions. If the lamp remains on,
there could be an active fault in the system or the
MIC lamp circuit may be internally shorted to
ground. If the lamp comes on and stays on for a
period longer than 6-8 seconds then goes off, there
is usually an intermittent problem in the system.
2
GENERAL INFORMATION