2005 MITSUBISHI 380 light

MAINTENANCE SERVICE
GENERAL00-51
18. SUSPENSION SYSTEM (INSPECT FOR
LOOSENESS AND DAMAGE)
M1001009600048
Visually inspect the front/rear suspension components for dete-
rioration and damage. Re-tighten the front/rear suspension
components retaining bolts to specified torque.
19. SRS AIR BAG (INSPECT FOR SRS SYSTEM)M1001003700326
The entire SRS including air bag and pre-tensioner seat belt
must be inspected by an authorized MITSUBISHI MOTORS
dealer 10 years.
SRS WARNING LIGHT CHECK
Turn the ignition key to the "ON" position. Does the
"SRS" warning light illuminate for several seconds, and then go
out? If yes, the SRS system is functioning properly. If no, refer
to GROUP 52B, Diagnosis P.52B-215.
SRS COMPONENT VISUAL CHECK
Wait at least 60 seconds after disconnecting the bat-
tery cable before doing any further work. The SRS
system is designed to retain enough voltage to
deploy the air bag for a short time even after the bat-
tery has been disconnected. Serious injury may result
from unintended air bag deployment if work is done
on the SRS system immediately after the battery
cable is disconnected.
Battery posts, terminals and related accessories con-
tain lead and lead compounds. WASH HANDS AFTER
HANDLING.
1. Turn the ignition switch to the "LOCK" (OFF) position,
disconnect the negative battery cable and tape the terminal.
2. Remove the floor console assembly (Refer to GROUP 52A,
Floor Console P.52A-10).
3. Disconnect a connector from the SRS-ECU.

13C-1
GROUP 13C
TRACTION
CONTROL SYSTEM
(TCL)
CONTENTS
GENERAL DESCRIPTION. . . . . . . . .13C-2
TRACTION CONTROL SYSTEM (TCL)
DIAGNOSIS . . . . . . . . . . . . . . . . . . . .13C-3
INTRODUCTION TO TRACTION CONTROL
SYSTEM (TCL) DIAGNOSIS . . . . . . . . . . . 13C-3
TROUBLESHOOTING STRATEGY . . . . . . 13C-3
DIAGNOSIS FUNCTION. . . . . . . . . . . . . . . 13C-3
DIAGNOSTIC TROUBLE CODE CHART . . 13C-8
DIAGNOSTIC TROUBLE CODE
PROCEDURES . . . . . . . . . . . . . . . . . . . . . . 13C-10
SYMPTOM CHART. . . . . . . . . . . . . . . . . . . 13C-23
SYMPTOM PROCEDURES . . . . . . . . . . . . 13C-23
DATA LIST REFERENCE TABLE . . . . . . . 13C-36
ACTUATOR TEST REFERENCE TABLE. . 13C-37
CHECK AT ABS/TCL-ECU RESISTANCE
AND TERMINAL VOLTAGE . . . . . . . . . . . . 13C-38RESISTANCE AND CONTINUITY
BETWEEN ABS-ECU AND WHEEL SPEED
SENSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . 13C-39
VOLTAGE AND SIGNAL CHECK AT
ABS-ECU USING AN OSCILLOSCOPE . . . 13C-41
SPECIAL TOOLS . . . . . . . . . . . . . . . .13C-45
ON-VEHICLE SERVICE . . . . . . . . . . .13C-47
TCL INDICATOR LIGHT CHECK . . . . . . . . 13C-47
TCL OPERATION CHECK . . . . . . . . . . . . . 13C-47
TCL SWITCH CHECK . . . . . . . . . . . . . . . . . 13C-48
WHEEL SPEED SENSOR CHECK . . . . . . . 13C-48
TCL SWITCH . . . . . . . . . . . . . . . . . . .13C-49
REMOVAL AND INSTALLATION . . . . . . . . 13C-49
WHEEL SPEED SENSOR . . . . . . . . .13C-49
REMOVAL AND INSTALLATION . . . . . . . . 13C-49
ABS/TCL-ECU . . . . . . . . . . . . . . . . . .13C-49
REMOVAL AND INSTALLATION . . . . . . . . 13C-49

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-4
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. Ensure that the ignition switch is at the "LOCK" (OFF)
position.
2. Start up the personal computer.
3. Connect special tool MB991827 to special tool MB991824
and the personal computer.
4. Connect special tool MB991910 to special tool MB991824.
5. Connect special tool MB991910 to the data link connector.
6. Turn the power switch of special tool MB991824 to the "ON"
position.
NOTE: When special tool MB991824 is energized, special
tool MB991824 indicator light will be illuminated in a green
color.
7. Start the MUT-III system on the personal computer.
NOTE: Disconnect the diagnostic tool MB991958 is the
reverse of the connecting sequence, making sure that the
ignition switch is at the "LOCK" (OFF) position.
HOW TO READ AND ERASE DIAGNOSTIC
TROUBLE CODES
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
To prevent damage to diagnostic tool MB991958, always
turn the ignition switch to the "LOCK" (OFF) position
before connecting or disconnecting diagnostic tool
MB991958.
NOTE: If the battery voltage is low, diagnostic trouble codes
will not be set. Check the battery if diagnostic tool
MB991958 does not display.
1. Connect diagnostic tool MB991958 to the data link
connector.
2. Turn the ignition switch to the "ON" position.
3. Select "Interactive Diagnosis" from the start-up screen.
4. Select "System Select".
5. Choose "TCL" .
6. Select "Diagnostic Trouble Code".
7. If a DTC is set, it is shown.
8. Choose "DTC erase" to erase the DTC.
9. Turn the ignition switch to the "LOCK" (OFF) position.
10.Disconnect diagnostic tool MB991958.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-23
SYMPTOM CHARTM1136003400029
SYMPTOM PROCEDURES
INSPECTION PROCEDURE 1: When the Ignition Switch is Turned to the "ON" Position
(Engine Stopped), the "TCL OFF" Indicator Light does not Illuminate. INSPECTION
PROCEDURE 2: When the Ignition Switch is Turned to the "ON" Position (Engine
Stopped), the TCL Work Indicator Light dose not Illuminate. INSPECTION
PROCEDURE 3: The "TCL OFF" Indicator Light Remains Illuminated After the Engine
is Started. INSPECTION PROCEDURE 4: The TCL Work Indicator Light Remains
Illuminated After the Engine is Started.
SYMPTOM INSPECTION
PROCEDURE NO.REFERENCE
PA G E
Communication with
diagnostic tool is not
possibleCommunication with all systems is
impossible- Group 13A, MPI
Diagnosis

Symptom
Procedures

Inspection
Procedure 1
P.13A-539.
Communication with the ABS/TCL-ECU
only is impossible- Group 35B, ABS
Diagnosis

Symptom
Procedures

Inspection
Procedure 1
P.35B-72.
When the ignition switch is turned to the "ON" position (engine
stopped), the "TCL OFF" indicator light dose not illuminate.1
P.13C-23
When the ignition switch is turned to the "ON" position (engine
stopped), the TCL work indicator light does not illuminate.2
The "TCL OFF" indicator light remains illuminated after the engine
is started.3
The TCL work indicator light remains illuminated after the engine
is started.4
When the TCL switch is push on, TCL does not be cancelled. 5
P.13C-28
TCL dose not operate. 6
P.13C-34

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-24
.
CIRCUIT OPERATION
The TCL automatically goes to ON, when the
ignition is turned to the "ON" position. To deacti-
vate the TCL, press the TCL switch. To reactivate
the TCL , press the TCL switch again.
ABS/TCL-ECU send the illumination signal of
"TCL OFF" indicator light and TCL work indicator
light to the combination meter via the CAN com-
munication.
ABS/TCL-ECU operates the "TCL OFF" indicator
light and the TCL work indicator light for three
seconds after the ignition switch is turned "ON"
position for bulb check.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-28
STEP 4. Retest the system
Q: Turn the ignition switch to the "ON" position. Do the
"TCL OFF" indicator light and the TCL work indicator
light illuminate for three seconds, and then go out after
the engine starts?
YES : The procedure is complete.
NO : . Return to Step 1.
INSPECTION PROCEDURE 5: When the TCL Switch is Pushed On, TCL does not Cancel.
NOTE: If the ABS-8 ECU or the active wheel
speed sensor are disconnected, or if the wiring is
an open/ short circuit, the ABS 8 ECU will shut
off power supply to the respective wheel speed
sensor. All other wheel speed sensors will oper-
ate normally. To restore the power supply, the
ignition switch must be turned to the "OFF" posi-
tion then to the "ON" position again.
.
CIRCUIT OPERATION
ABS/TCL-ECU terminal 21 is grounded every time
the TCL switch is pressed. ABS/TCL-ECU monitors
this operation state and turns the TCL ON or OFF.
.
COMMENT
The cause is probably an open-circuit in the TCL
switch circuit.
.
TROUBLESHOOTING HINTS
Malfunction of the TCL switch.
Damaged harness or connector.
Malfunction of the ABS/TCL-ECU.
DIAGNOSIS
Required Special Tools:
MB991223: Harness Set
MB991219: Inspection Test Harness

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-36
DATA LIST REFERENCE TABLEM1136003500071
NOTE: If the ABS-8 ECU or the active wheel
speed sensor are disconnected, or if the wiring is
an open/ short circuit, the ABS 8 ECU will shut
off power supply to the respective wheel speed
sensor. All other wheel speed sensors will oper-
ate normally. To restore the power supply, the
ignition switch must be turned to the "OFF" posi-
tion then to the "ON" position again.The following items can be read by the diagnostic
tool from the ABS/TCL-ECU input data. (Refer to
P.13C-3).
NOTE: Since the TCL is controlled with the same ABS/TCL-ECU used to control the ABS, the stoplight switch
check item (No.6) used only for the ABS also appear.MUT-III
DIAGNOSTI
C TOOL
DISPLAYITEM
NO.CHECK ITEM CHECKING REQUIREMENTS NORMAL
VA L U E
FL wheel
speed sensor01 Front left wheel speed sensor Drive the vehicle Vehicle speeds
displayed on the
speedometer
and diagnostic
tool are identical. FR wheel
speed sensor02 Front right wheel speed sensor
RL wheel
speed sensor03 Rear left wheel speed sensor
RR wheel
speed sensor04 Rear right left wheel speed
sensor
Power supply
voltage05 ABS/TCL-ECU power supply
voltageIgnition switch power supply
voltageBattery positive
voltage
Stoplamp
switch
(input)*06 Stoplamp switch Depress the brake pedal. ON
Release the brake pedal. OFF
Stoplamp
switch*13 Stoplamp switch Depress the brake pedal. ON
Release the brake pedal. OFF
Pump motor 21 Pump motor When the ABS outputs the
operation permission signal
during drivingON
When the ABS outputs the
operation permission signal
during drivingOFF
Valve relay 30 Valve relayWhen the ABS outputs the
operation permission signal
during drivingON
When the ABS outputs the
operation permission signal
during drivingOFF
TCL mode 35 TCL operation When the TCL outputs the
operation permission signal
during drivingON
When the TCL outputs the
operation inhibition signal
during drivingOFF

ON-VEHICLE SERVICE
TRACTION CONTROL SYSTEM (TCL)13C-47
ON-VEHICLE SERVICE
TCL INDICATOR LIGHT CHECKM1136000900058
1. Check that the "TCL OFF" indicator light and the TCL work
indicator light illuminate for three seconds when the ignition
switch is turned to the "ON" position.
2. Check that the "TCL OFF" indicator light illuminates and
goes off in cycles each time the TCL switch is pushed after
starting the engine.
3. Check that the "TCL OFF" indicator light and the TCL work
indicator light do not illuminate, when driving at 30km/h
(37.5 mph) for more than 2 seconds.
4. If defective, repair it. (Refer to P.13C-23, TCL diagnosis

Symptom Procedures
Inspection Procedure 1, 2, 3 and 4).
TCL OPERATION CHECKM1136001100055
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