
13E-1
MITSUBISHI STABILITY
CONTROL
(MITSUBISHI SC)
CONTENTS
GENERAL INFORMATION 2................
SERVICE SPECIFICATIONS 4..............
SPECIAL TOOLS 4........................
TROUBLESHOOTING 5....................
ON-VEHICLE SERVICE 18.................
Operation Test of MITSUBISHI SC 18.........Wheel Speed Sensor (FR) Check 18..........
Vehicle Speed Sensor Check 18..............
SC-ECU* 19...............................
G SENSOR 20.............................
WHEEL SPEED SENSOR (FR) 20..........
VEHICLE SPEED SENSOR 20..............
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES
WARNING!
(1) Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to personal
injury or death to service personnel (from inadvertent firing of the air bag) or to the driver and passenger (from rendering
the SRS inoperative).
(2) Service or maintenance of any SRS component or SRS-related component must be performed only at an authorized
MITSUBISHI dealer.
(3) MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B - Supplemental
Restraint System (SRS) before beginning any service or maintenance of any component of the SRS or any SRS-related
component.
NOTE
The SRS includes the following components: front impact sensors, SRS-ECU, SRS warning lamp, air bag module, clock spring and
interconnecting wiring. Other SRS-related components (that may have to be removed/installed in connection with SRS service or
maintenance) are indicated in the table of contents by an asterisk (*).
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17-1
ENGINE AND
EMISSION
CONTROL
CONTENTS
ENGINE CONTROL SYSTEM 3........
GENERAL INFORMATION 3................
SERVICE SPECIFICATIONS 3..............
ON-VEHICLE SERVICE 3..................
Accelerator Cable Check and Adjustment
<4D5> 3...................................
ACCELERAOR CABLE AND PADAL 4......
AUTO-CRUISE CONTROL SYSTEM 7..
GENERAL INFORMATION 7................
SPECIAL TOOL 8.........................
TROUBLESHOOTING 9....................
ON-VEHICLE SERVICE 27................
Auto-cruise Control Main Switch Check 27....
Auto-cruise Control Switch Check 28..........
Auto-cruise Control Component Check 29.....
AUTO-CRUISE CONTROL SWITCH 30.....
EMISSION CONTROL SYSTEM
<6G7> 31.............................
GENERAL INFORMATION 31..............
Emission Control Device Reference
Table 31....................................
SERVICE SPECIFICATIONS 32............
SPECIAL TOOL 32.......................
VACUUM HOSE 32.......................
Vacuum Hose Piping Diagram 32.............
Vacuum Circuit Diagram 33..................
Vacuum Hose Check 33.....................
Vacuum Hose Installation 33.................
CRANKCASE EMISSION CONTROL
SYSTEM 34..............................
General Information 34......................
System Diagram 34.........................
Component Location 34......................
Positive Crankcase Ventilation System
Check 35...................................
PCV Valve Check 35........................
CONTINUED ON NEXT PAGE
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BASIC BRAKE SYSTEM -Troubleshooting35A-16
Inspection procedure 4
The HBB buzzer does not stop sounding.
Probable cause
The HBB buzzer circuit may be short.DMalfunction of the HBB buzzer
DMalfunction of the harness
DMalfunction of ABS-ECU (buzzer drive transistor)
NOTE
This trouble symptom is limited to cases where communication with the MUT-II
is possible (ABS-ECU
power supply is normal) and the diagnosis code is a normal diagnosis code.
OK
Repair NG
Repair
Replace the HBB buzzer.
OK
NG
YES
Replace the ABS-ECU. (Refer to GROUP 35B.)NODisconnect the ABS-ECU connector E-107. Does the HBB buzzer
remain sounding when the ignition switch is turned ON?
Check trouble symptom.
Check the harness wire:
DBetween the HBB buzzer and the ABS-ECUNG
Check the following connectors:
E-107, E-108
ACTUATOR TEST REFERENCE TABLE
The MUT-II activates the following actuators for testing.
NOTE
1. If the ABS-ECU runs down, actuator testing cannot be carried out.
2. Actuator testing is only possible when the vehicle is stationary.
ACTUATOR TEST SPECIFICATIONS
Item No.Inspection itemDrive contents
01HBB pump motorOperate the pump motor for one second.
02HBB buzzerSound the buzzer for three seconds.
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ABS <4WD> -Troubleshooting35B-22
DATA LIST REFERENCE TABLE
The following ECU input data items can be read using the MUT-II
.
(1) When system is normal
Item
No.Check itemInspection conditionsNormal condi-
tion
11Front - right wheel
speedWhen vehicle is being drivenSpeedometer
display and
12Front - left wheel
speedMUT-IIdisplay
are identical.
13Rear - right wheel
speed
14Rear - left wheel
speed
16System voltageIgnition switch: ON6.5 - 22.3 V
26Center differential
lock switchIgnition switch: ONTransfer selector lever position:
2H, 4HOFF
Transfer selector lever position:
4HLc, 4LLcON
27Rear differential lock
switchIgnition switch: ONOFF
32G sensorD
Ignition switch: ON
D
When vehicle is stationary (level)2.4 - 2.6 V
When vehicle is being driven1.0 - 4.0 V
33Stop lampIgnition switch: ONWhen brake pedal is depressedON
SwitchWhen brake pedal is releasedOFF
(2) When system is interrupted by the ECU
When the diagnosis function has caused the operation of the ABS-ECU to be stopped, the
MUT-II
display data may be different from the actual condition.
ACTUATOR TEST TABLE
The following actuators can be force-driven using the MUT-II
.
NOTE
(1) Actuator tests cannot be carried out when the operation of the ABS-ECU has been stopped by
the fail-safe function.
(2) Actuator tests can only be carried out while the vehicle is stopped.
ACTUATOR TEST SPECIFICATIONS
Item No.Check itemDrive Contents
01FR wheel solenoid valveHBB select solenoid valves and control solenoid valves for the
02FL wheel solenoid valverespective channel
03RR wheel solenoid valve
04RL wheel solenoid valve
27Air bleeding (1)HBB select solenoid valves and control solenoid valve OUT (FR, FL)
28Air bleeding (2)HBB control solenoid valve OUT (RR, RL)
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37A-1
STEERING
CONTENTS
GENERAL INFORMATION 2..................
SERVICE SPECIFICATIONS 5.................
LUBRICANTS 5..............................
SEALANT AND ADHESIVE 5.................
SPECIAL TOOLS 6..........................
ON-VEHICLE SERVICE 8.....................
Steering Wheel Free Play Check 8..............
Steering Angle Check 8........................
Tie Rod End Ball Joint Starting Torque Check 8..
Stationary Steering Effort Check 9...............
Steering Wheel Returnability Check 9............
Oil Pump Belt Tension Check <6G7,4D5> 9......Power Steering Fluid Level Check 10............
Power Steering Fluid Replacement 10...........
Power Steering System Bleeding 10.............
Oil Pump Pressure Test 11.....................
Power Steering Oil Pressure Switch Check
<6G7,4M4> 12.................................
Ball Joint Dust Cover Check 12.................
STEERING WHEEL AND SHAFT* 13.........
POWER STEERING GEAR BOX AND
LINKAGE 16................................
POWER STEERING OIL PUMP 30...........
POWER STEERING OIL HOSES 35..........
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES
WARNING!
(1) Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to personal
injury or death to service personnel (from inadvertent firing of the air bag) or to the driver and passenger (from rendering
the SRS inoperative).
(2) Service or maintenance of any SRS component or SRS-related component must be performed only at an authorized
MITSUBISHI dealer.
(3) MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B - Supplemental
Restraint System (SRS) before beginning any service or maintenance of any component of the SRS or any SRS-related
component.
NOTE
The SRS includes the following components: SRS-ECU, SRS warning lamp, air bag module, clock spring and interconnecting
wiring. Other SRS-related components (that mayhave to be removed/installed in connectionwith SRS service or maintenance) are
indicated in the table of contents by an asterisk(*).
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52A-2
INTERIOR
CONTENTS
SERVICE SPECIFICATIONS 3.................
SPECIAL TOOL 3............................
INSTRUMENT PANEL
INSTRUMENT PANEL
FLOOR CONSOLE 12........................
TRIMS 13...................................
SUNVISOR HOLDER 17......................FRONT SEAT 18............................
REAR/SECOND SEAT 25....................
THIRD SEAT 35.............................
FRONT SEAT BELT 38.......................
REAR SEAT BELT
SECOND/THIRD SEAT BELT
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES
WARNING!
(1) Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to personal
injury or death to service personnel (from inadvertent firing of the air bag) or to the driver (from rendering the SRS
inoperative).
(2) Service or maintenance of any SRS component or SRS-related component must be performed only at an authorized
MITSUBISHI dealer.
(3) MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B - Supplemental
Restraint System (SRS) before beginning any service or maintenance of any component of the SRS or any SRS-related
component.
NOTE
The SRS includes the following components: front impact sensors, SRS-ECU, SRS warning lamp, air bag module, clock spring and
interconnecting wiring. Other SRS-related components (that mayhave to be removed/installed in connectionwith SRS service or
maintenance) are indicated in the table of contents by an asterisk(*).
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