MANUAL
The vehicle speed sensor is located in the transmis-
sion extension housing (Fig. 22). The sensor input is
used by the PCM to determine vehicle speed and dis-
tance traveled.
The vehicle speed sensor generates 8 pulses per
sensor revolution. These signals, in conjunction with
a closed throttle signal from the throttle position sen-
sor, indicate a closed throttle deceleration to the
PCM.
Under
deceleration
conditions,
the
PCM
adjusts the Idle Air Control (IAC) motor to maintain
a desired MAP value.
When the vehicle is stopped at idle, a closed throt-
tle signal is received by the PCM (but a speed sensor
signal is not received). Under idle conditions, the
PCM adjusts the IAC motor to maintain a desired
engine speed.
The vehicle speed sensor signal is also used to
operate the following functions or systems:
•
Speedometer
•
Speed control
•
Daytime Running Lights (Canadian Vehicles
only).
AIR CONDITIONING CLUTCH RELAY—PCM
OUTPUT
The PCM controls the air conditioning clutch relay
ground circuit. Buss bars in the Power Distribution
Center (PDC) supply voltage to the solenoid side and
power side of the relay. When the PCM receives an
air conditioning input, it grounds the A/C compressor
clutch relay and the radiator fan relay.
When the PCM senses low idle speeds or wide open
throttle through the throttle position sensor, it
removes the ground for the A/C compressor clutch
relay. When the relay de-energizes, the contacts open
preventing air conditioning clutch engagement. Also,
if the PCM senses a part throttle launch condition, it
disables the A/C compressor clutch for several sec-
onds.
The air conditioning clutch relay is located in the
PDC. The inside top of the PDC cover has a label
showing relay and fuse location.
AUTOMATIC SHUTDOWN RELAY—PCM OUTPUT
The PCM operates the automatic shut down (ASD)
relay and fuel pump relay through one ground path.
The PCM operates them by switching the ground
path for the solenoid side of the relays on and off.
Both relays turn on and off at the same time.
The ASD relay connects battery voltage to the fuel
injectors and ignition coil. The fuel pump relay con-
nects battery voltage to the fuel pump.
A buss bar in the power distribution center (PDC)
supplies voltage to the solenoid side and contact side
of the relay. The ASD relay power circuit contains a
20 amp fuse between the buss bar in the PDC and
the relay. The fuse also protects the power circuit for
the fuel pump relay and pump. The fuse is located in
the PDC. Refer to Group 8W, Wiring Diagrams for
circuit information.
The PCM controls the relay by switching the
ground path for the solenoid side of the relay on and
off. The PCM turns the ground path off when the
ignition switch is in the Off position unless the 02
Heater Monitor test is being run. Refer to Group 25,
On-Board Diagnostics. When the ignition switch is in
the On or Crank position, the PCM monitors the
crankshaft position sensor and camshaft position sen-
sor signals to determine engine speed and ignition
timing (coil dwell). If the PCM does not receive the
crankshaft position sensor and camshaft position sen-
sor signals when the ignition switch is in the Run
position, it will de-energize the ASD relay.
Fig. 22 Vehicle Speed Sensor—ManualTransmission
TRANSAXLE
SPEED
SENSOR
SPEED SENSOR RETAINING
BOLT
Fig. 23 Power Distribution Center (PDC)
BATTERY POSITIVE
BATTERY GROUND
AIR CLEANER
PCM
PDC
TCM
JA
FUEL SYSTEM
14 - 37
DESCRIPTION AND OPERATION (Continued)
Содержание Stratus LHD 1997
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Страница 525: ...Fig 5 Symbol Identification 8W 01 4 8W 01 GENERAL INFORMATION JA DESCRIPTION AND OPERATION Continued ...
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Страница 816: ...Fig 4 Engine Connections 2 0L 2 4L JA 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 9 DESCRIPTION AND OPERATION Continued ...
Страница 817: ...Fig 5 Engine Connections 2 5L 8W 90 10 8W 90 CONNECTOR GROUND LOCATIONS JA DESCRIPTION AND OPERATION Continued ...
Страница 818: ...Fig 6 Transmission Connections JA 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 11 DESCRIPTION AND OPERATION Continued ...
Страница 819: ...Fig 7 Steering Column Connections 8W 90 12 8W 90 CONNECTOR GROUND LOCATIONS JA DESCRIPTION AND OPERATION Continued ...
Страница 820: ...Fig 8 Instrument Panel Connections JA 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 13 DESCRIPTION AND OPERATION Continued ...
Страница 821: ...Fig 9 Instrument Panel Connections 8W 90 14 8W 90 CONNECTOR GROUND LOCATIONS JA DESCRIPTION AND OPERATION Continued ...
Страница 822: ...Fig 10 Junction Block Connections JA 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 15 DESCRIPTION AND OPERATION Continued ...
Страница 823: ...Fig 11 HVAC Connections 8W 90 16 8W 90 CONNECTOR GROUND LOCATIONS JA DESCRIPTION AND OPERATION Continued ...
Страница 824: ...Fig 12 Body Connections JA 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 17 DESCRIPTION AND OPERATION Continued ...
Страница 825: ...Fig 13 Body Connections 8W 90 18 8W 90 CONNECTOR GROUND LOCATIONS JA DESCRIPTION AND OPERATION Continued ...
Страница 826: ...Fig 14 Body Connections JA 8W 90 CONNECTOR GROUND LOCATIONS 8W 90 19 DESCRIPTION AND OPERATION Continued ...
Страница 827: ...Fig 15 Roof Connections 8W 90 20 8W 90 CONNECTOR GROUND LOCATIONS JA DESCRIPTION AND OPERATION Continued ...
Страница 829: ...Fig 18 Deck Lid Connections 8W 90 22 8W 90 CONNECTOR GROUND LOCATIONS JA DESCRIPTION AND OPERATION Continued ...
Страница 833: ...Fig 5 Engine Splices 2 0L 2 4L 8W 95 4 8W 95 SPLICE LOCATIONS JA DESCRIPTION AND OPERATION Continued ...
Страница 834: ...Fig 6 Engine Splices 2 5L JA 8W 95 SPLICE LOCATIONS 8W 95 5 DESCRIPTION AND OPERATION Continued ...
Страница 835: ...Fig 7 Body Splices 8W 95 6 8W 95 SPLICE LOCATIONS JA DESCRIPTION AND OPERATION Continued ...
Страница 836: ...Fig 8 Deck Lid Splices Fig 9 Door Splices JA 8W 95 SPLICE LOCATIONS 8W 95 7 DESCRIPTION AND OPERATION Continued ...
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Страница 975: ...Adapter 6887 Camshaft Seal Installer 6863 9 138 2 5L ENGINE JA SPECIAL TOOLS Continued ...
Страница 995: ...Fig 2 Exhaust System Leaded Fuel 11 2 EXHAUST SYSTEM AND INTAKE MANIFOLD JA GENERAL INFORMATION Continued ...
Страница 1001: ...13 6 BUMPERS AND FRAME JA SPECIFICATIONS Continued ...
Страница 1065: ...Fuel Line Adapter 1 4 14 64 FUEL SYSTEM JA SPECIAL TOOLS Continued ...
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Страница 1106: ...SPECIAL TOOLS POWER STEERING PUMP Installer C 4063B Puller C 4333 P S System Analyzer 6815 JA STEERING 19 35 ...
Страница 1236: ...41TE TRANSAXLE HYDRAULIC SCHEMATIC JA TRANSAXLE 21 105 SCHEMATICS AND DIAGRAMS Continued ...
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Страница 1248: ...41TE TRANSAXLE HYDRAULICSCHEMATIC JA TRANSAXLE 21 117 SCHEMATICS AND DIAGRAMS Continued ...
Страница 1257: ...Remover 6787 Cooling System Tester 7700 Seal Remover 7794 a 21 126 TRANSAXLE JA SPECIAL TOOLS Continued ...
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Страница 1287: ...SPECIFICATIONS SUNROOF COMPONENTS 23 16 BODY JA ...
Страница 1318: ...SPECIAL TOOLS BODY REMOVER MOLDINGS C 4829 STICK TRIM C4755 JA BODY 23 47 ...
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Страница 1321: ...Fig 1 Floor Console 23 2 BODY JA REMOVAL AND INSTALLATION Continued ...
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Страница 1375: ...ENGINE VACUUM SCHEMATIC 2 0L 25 16 EMISSION CONTROL SYSTEMS JA DIAGNOSIS AND TESTING Continued ...
Страница 1376: ...ENGINE VACUUM SCHEMATIC 2 4LATX JA EMISSION CONTROL SYSTEMS 25 17 DIAGNOSIS AND TESTING Continued ...
Страница 1377: ...ENGINE VACUUM SCHEMATIC 2 5LATX 25 18 EMISSION CONTROL SYSTEMS JA DIAGNOSIS AND TESTING Continued ...
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Страница 1401: ...FASTENER IDENTIFICATION 6 INTRODUCTION JA GENERAL INFORMATION Continued ...
Страница 1404: ...METRIC CONVERSION JA INTRODUCTION 9 GENERAL INFORMATION Continued ...
Страница 1512: ...41TE TRANSAXLE HYDRAULIC SCHEMATIC JA TRANSAXLE 21 105 SCHEMATICS AND DIAGRAMS Continued ...
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Страница 1533: ...Remover 6787 Cooling System Tester 7700 Seal Remover 7794 a 21 126 TRANSAXLE JA SPECIAL TOOLS Continued ...