sensor MITSUBISHI 380 2005 Workshop Manual

ON-VEHICLE SERVICE
TRACTION CONTROL SYSTEM (TCL)13C-48
To prevent damage to diagnostic tool MB991958, always
turn the ignition switch to the "LOCK" (OFF) position
before connecting or disconnecting diagnostic tool
MB991958.
1. Connect diagnostic tool MB991958 to the data link
connector. (Refer to P.13C-3).
2. Turn the ignition switch to the "ON" position.
The engine speed increases after the actuator test
because the actuator test continues for only three sec-
onds. Therefore, release the accelerator pedal immedi-
ately.
3. Use diagnostic tool MB991958 to check the actuator test.
(Refer to P.13C-3).
Item 09: Engine TCL Drive.
When the accelerator pedal is depressed at the same
time that the button for actuator test item 09 displayed
on diagnostic tool MB991958 is pressed, the system
prevents the engine speed from rising for three sec-
onds.
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect diagnostic tool MB991958.
6. If defective, repair it. (Refer to P.13C-34, TCL diagnosis

Symptom Procedures
Inspection Procedure 6).
TCL SWITCH CHECKM1136001700024
1. Remove the TCL switch. (Refer to P.13C-49).
2. Measure the resistance between terminal 1 and terminal 2
when the TCL switch is pressed or released. If the values
measured at the time correspond to those in the table below,
the resistance values are correct.
WHEEL SPEED SENSOR CHECKM1136001300026
Refer to GROUP 35B, On-vehicle Service P.35B-88.
SWITCH
POSITIONTESTER
CONNECTIONSPECIFIED
CONDITION
Pressed 1-2 Less than 2
ohms
Released 1-2 Open circuit

TCL SWITCH
TRACTION CONTROL SYSTEM (TCL)13C-49
TCL SWITCH
REMOVAL AND INSTALLATIONM1136001600027
WHEEL SPEED SENSOR
REMOVAL AND INSTALLATIONM1136002500023
Refer to GROUP 35B, Wheel Speed Sensor P.35B-95.
ABS/TCL-ECU
REMOVAL AND INSTALLATIONM1136005300017
Replace the hydraulic unit (integrated with ABS/TCL-ECU). (Refer to GROUP 35B, Hydraulic Unit P.35B-93).
REMOVAL STEPS
HOOD LOCK RELEASE HANDLE
(REFER TO GROUP 42, HOOD P.42-8.)
INSTRUMENT LOWER PANEL (REFER
TO GROUP 52A, INSTRUMENT PANEL
ASSEMBLY P.52A-4.)
INSTRUMENT PANEL GARNISH
(REFER TO GROUP 52A,
INSTRUMENT PANEL ASSEMBLY
P.52A-4.)
1. SWITCH BEZEL ASSEMBLY
2. SWITCH PANEL ASSEMBLY
3. TCL SWITCH REMOVAL STEPS (Continued)

ENGINE AND EMISSION CONTROL17-2
EMISSION CONTROL . . . . . . . .17-76
GENERAL DESCRIPTION . . . . . .
17-76
DIAGNOSIS . . . . . . . . . . . . . . . . . .17-76
SPECIAL TOOLS. . . . . . . . . . . . . .17-76
VACUUM HOSES . . . . . . . . . . . . .17-77
VACUUM HOSE ROUTING. . . . . . . . . . 17-77
VACUUM CIRCUIT DIAGRAM . . . . . . . 17-78
VACUUM HOSE INSTALLATION . . . . . 17-78
VACUUM HOSE CHECK. . . . . . . . . . . . 17-79
POSITIVE CRANKCASE VENTILATION
SYSTEM . . . . . . . . . . . . . . . . . . . . .
17-79
GENERAL DESCRIPTION (POSITIVE
CRANKCASE VENTILATION SYSTEM)17-79
COMPONENT LOCATION . . . . . . . . . . 17-80
POSITIVE CRANKCASE VENTILATION
SYSTEM CHECK. . . . . . . . . . . . . . . . . . 17-80
POSITIVE CRANKCASE VENTILATION
VALVE CHECK . . . . . . . . . . . . . . . . . . . 17-80
EVAPORATIVE EMISSION CONTROL SYSTEM . . . . . . . . . . . . . . . . . . . . .
17-81
GENERAL DESCRIPTION (EVAPORATIVE
EMISSION SYSTEM) . . . . . . . . . . . . . . . 17-81
COMPONENT LOCATION . . . . . . . . . . . 17-82
PURGE CONTROL SYSTEM CHECK
(PURGE FLOW CHECK) . . . . . . . . . . . . 17-82
EVAPORATIVE EMISSION PURGE
SOLENOID CHECK . . . . . . . . . . . . . . . . 17-83
MASS AIRFLOW SENSOR CHECK . . . 17-84
ENGINE COOLANT TEMPERATURE
SENSOR CHECK . . . . . . . . . . . . . . . . . . 17-84
INTAKE AIR TEMPERATURE SENSOR
CHECK. . . . . . . . . . . . . . . . . . . . . .17-84
EVAPORATIVE EMISSION CANISTER
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
17-81
REMOVAL AND INSTALLATION . . . . . . 17-81
INSPECTION . . . . . . . . . . . . . . . . . . . . . 17-81
CATALYTIC CONVERTER . . . . . .17-84
GENERAL DESCRIPTION (CATALYTIC
CONVERTER) . . . . . . . . . . . . . . . . . . . . 17-84
SPECIFICATIONS . . . . . . . . . . 17-85
FASTENER TIGHTENING
SPECIFICATIONS . . . . . . . . . . . . . . . . . 17-85

ENGINE CONTROL
ENGINE AND EMISSION CONTROL17-4
SYMPTOM CHARTM1171002200292
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: Throttle Valve Will Not Fully Open or Close
.
COMMENT
The throttle body or accelerator pedal position (APP)
sensor is suspected.
.
TROUBLESHOOTING HINTS (THE MOST
LIKELY CAUSES FOR THIS CASE:)
Malfunction of the throttle body.
Malfunction of the accelerator pedal position
(APP) sensor.
Malfunction of the Engine ECU.
Circuit drawings
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
Refer to component locations GROUP-70 SYMPTOM INSPECTION PROCEDURE REFERENCE PAGE
Throttle Valve Will Not Fully Open or Close 1
P.17-4
Accelerator Pedal Operation Not Smooth (Over
Acceleration)2
P.17-6

ENGINE CONTROL
ENGINE AND EMISSION CONTROL17-6
INSPECTION PROCEDURE 2: Accelerator Pedal Operation Not Smooth (Over Acceleration)
.
COMMENT
The accelerator pedal, its installation condition or the
accelerator pedal position (APP) sensor is sus-
pected.
.
TROUBLESHOOTING HINTS (THE MOST
LIKELY CAUSES FOR THIS CASE:)
Malfunction of the accelerator pedal.
Incorrectly installed accelerator pedal.
Malfunction of the accelerator pedal position
(APP) sensor.
Circuit drawings
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
Refer to component locations GROUP-70
DIAGNOSIS
Required Special Tools:
MB991958: Diagnostic Tool (MUT-III Sub Assembly)
MB991824: V.C.I.
MB991827: MUT-III USB Cable
MB991910: MUT-III Main Harness A
STEP 1. Check if the accelerator pedal is installed
correctly.
Q: Is the accelerator pedal installed correctly?
YES : Go to Step 2.
NO : Replace and reinstall the accelerator pedal. (Refer to
P.17-9). Go to Step 3.

ENGINE CONTROL
ENGINE AND EMISSION CONTROL17-9
ACCELERATOR PEDAL
REMOVAL AND INSTALLATIONM1171003000116
REMOVAL STEPS
1. ACCELERATOR PEDAL POSITION
(APP) SENSOR CONNECTOR2. ACCELERATOR PEDAL ASSEMBLY
3. ACCELERATOR STOPPERREMOVAL STEPS (Continued)

AUTO-CRUISE CONTROL
ENGINE AND EMISSION CONTROL17-10
AUTO-CRUISE CONTROL
GENERAL DESCRIPTIONM1172000100281
By using the auto-cruise control system, the driver
can select and maintain a desired cruising speed
[between 40 km/h (25 mph) and 200 km/h (124
mph)] without depressing the accelerator pedal.NOTE: If engine speed reaches and exceeds 6000
r/min the Auto Cruise Control System will be can-
celled automatically.
CONSTRUCTION DIAGRAM
AUTO-CRUISE CONTROL SYSTEM DIAGNOSIS
INTRODUCTION TO AUTO-CRUISE CONTROL SYSTEM DIAGNOSISM1172003300251
The auto-cruise control system allows driving without
stepping on the accelerator pedal by setting a ran-
dom speed between 40 km/h (25 mph) and 200 km/h
(124 mph). Problems in this system can be investi-
gated by the following methods.Auto-cruise control system diagnostic
trouble codes
The auto-cruise control system consists of the
Engine ECU, control switches and sensors. The con-
trol switches and sensors monitor the state of the
vehicle. The Engine ECU controls the throttle valve
opening angle in the throttle body in accordance with
the input signals from the switches and sensors. If
the Engine ECU detects a problem on any of those
91
01
1
12
1
31
41
5
16 123
456
78

AUTO-CRUISE CONTROL
ENGINE AND EMISSION CONTROL17-60
INSPECTION PROCEDURE 6: Hunting (Repeated Acceleration and Deceleration) Occurs at the Set
Vehicle Speed.
.
COMMENT
The output shaft speed sensor signal or the throttle
body is suspected.
.
TROUBLESHOOTING HINTS (THE MOST
LIKELY CAUSES FOR THIS CASE:)
Malfunction of the output shaft speed sensor.
Malfunction of the throttle body.
Malfunction of the Engine ECU.
Malfunction of the A/T ECU.
Circuit drawings
Refer to circuit diagrams GROUP-90
Refer to configuration diagrams GROUP-80
Refer to component locations GROUP-70
DIAGNOSIS
Required Special Tools:
MB991958: Diagnostic Tool (MUT-III Sub Assembly)
MB991824: V.C.I.
MB991827: MUT-III USB Cable
MB991910: MUT-III Main Harness A
STEP 1. Using Diagnostic Tool MB991958, read the
diagnostic trouble code.
To prevent damage to Diagnostic Tool MB991958, always
turn the ignition switch to the "LOCK" (OFF) position
before connecting or disconnecting Diagnostic Tool
MB991958.
(1) Connect Diagnostic Tool MB991958 to the data link
connector. (Refer to P.17-11).
(2) Turn the ignition switch to the "ON" position.
(3) Check for A/T system diagnostic trouble code. (Refer to
GROUP 23A, A/T Diagnosis
Diagnostic Function How
to Read and Erase Diagnostic Trouble Code P.23A-13).
(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Disconnect Diagnostic Tool MB991958.
Q: Is any DTC set?
YES : Diagnose the A/T system. (Refer to GROUP 23A, A/T
Diagnosis
Diagnostic Trouble Code Chart
P.23A-34). Then go to Step 4.
NO : Go to Step 2.

AUTO-CRUISE CONTROL
ENGINE AND EMISSION CONTROL17-65
DATA LIST REFERENCE TABLE - Auto Cruise ControlM1172002400471
When shifting the selector lever to "D" range, apply the brakes so that the vehicle does not move
forward.
Driving tests always need two persons: one driver and one observer.
NOTE: *:After the inspection is completed, disconnect the throttle position sensor connector, and then delete
the diagnostic trouble code using use of Diagnostic Tool MB991958. (Refer to P.17-11).
MUT-III
Diagnostic
To o l
DISPLAYITEM
NO.INSPECTION ITEM INSPECTION REQUIREMENT NORMAL
CONDITION
APS
SNS(MAIN)11 A c c e l e r a t o r p e d a l
position sensor (main)Ignition
switch:
"ON"Accelerator pedal: Released
435
1,035 mV
Accelerator pedal: Gradually
depressedIncreases in
response to the
pedal depression
stroke
Accelerator pedal: Fully
depressed4,000 mV or more
BRAKE SW 89 Stoplamp switch Brake pedal: Depressed ON
Brake pedal: Released OFF
CANCEL
CODE57 Cancel code Ignition switch: "ON" The cancel code,
which set when the
auto-cruise control
system was
cancelled at the
last time, is set
again.
CANCEL
SWITCH75 Auto-cruise
control
switchCANCEL "CANCEL" switch: ON ON
"CANCEL" switch: OFF OFF
CLUTCH SW 78 Transmission inhibitor
switchTransmission inhibitor switch: "P" or
"N"ON
Transmission inhibitor switch: Other
than aboveOFF
CRUISE 81 Auto-cruise control
system operationAuto-cruise control system: active ON
Auto-cruise control system: Inactive OFF
MAIN SW 86 Auto-cruise
control
switchCRUISE
(MAIN)"CRUISE" (MAIN) switch: "ON" ON
"CRUISE" (MAIN) switch: "OFF" OFF
RESUME
SWITCH91 Auto-cruise
control
switchACC/RES "ACC/RES" switch: ON ON
"ACC/RES" switch: OFF OFF
SET SWITCH 92 Auto-cruise
control
switchCOAST/S
ET"COAST/SET" switch: ON ON
"COAST/SET" switch: OFF OFF
STOPLIGHT
SW74 Stoplamp switch Brake pedal: Depressed ON
Brake pedal: Released OFF

AUTO-CRUISE CONTROL
ENGINE AND EMISSION CONTROL17-66
If the air intake duct is removed from the throttle body take great care to keep fingers away
from the throttle plate. The drive motor has very high torque and is capable of random move-
ment at any time. Do not under any circumstances activate the throttle plate by hand.
When removing the throttle body from the intake manifold disconnect the wiring first. During
replacement connect the wiring last.
Do not activate the throttle body using a DC suppy to test the motor,as permanent damage to
the throttle body will result.
TP
SNSR(MAIN)13 Throttle position sensor
(main)*(1) Accelerator pedal:
Released
(2) Accelerator pedal:
Depressed(1) Throttle
valve fully
closed1035 1250 mV
(2) Throttle
valve fully
open4,000 mV or more
A/C switch: "OFF" to "ON" Voltage rises
Selector lever: "N" to "D" Voltage rises
VSS 04 Vehicle speed signal Road test the vehicle The speedometer
and Diagnostic
Tool MB991958
display the same
value. MUT-III
Diagnostic
To o l
DISPLAYITEM
NO.INSPECTION ITEM INSPECTION REQUIREMENT NORMAL
CONDITION