check engine MITSUBISHI 380 2005 Workshop Manual

MAINTENANCE SERVICE
GENERAL00-40
The temperature of the surface of the belt should be as
close as possible to underhood temperature.
Do not let any contaminants such as water or oil get
onto the microphone.
If strong gusts of wind blow against the microphone or
if there are any loud sources of noise nearby, the val-
ues measured by the microphone may not correspond
to actual values.
If the microphone is touching the belt while the mea-
surement is being made, the values measured by the
microphone may not correspond to actual values.
Do not take the measurement while the vehicle's engine
is running.
5. Hold special tool MB991668 (microphone) to the middle of
the drive belt between the pulleys (at the place indicated by
the arrow), about 10
20 mm (0.4 0.8 inch) away from the
rear surface of the belt and so that it is perpendicular to the
belt (within an angle of
15 degree angle).
6. Gently tap the middle of the belt between the pulleys (the
place indicated by the arrow) with your finger as shown in
the illustration, and check that the vibration frequency of the
belt is within the standard value.
Standard value:
NOTE: Because the frequency depends on the belt material,
confirm Part No. shown on the reverse of the belt.
.
Part No. Vibration frequency Hz
MD368275 133
158
MN158101, MN187016 143
169

MAINTENANCE SERVICE
GENERAL00-44
8. EXHAUST SYSTEM (CONNECTIONS PORTION
OF MUFFLER, MUFFLER PIPES AND
CONVERTER HEAT SHIELDS) (CHECK AND
SERVICE AS REQUIRED)
M1001005800299
1. Check for holes and exhaust gas leaks due to damage,
corrosion, etc.
2. Check the joints and connections for looseness and exhaust
gas leaks.
3. Check the rubber hangers and brackets for damage.
9. ENGINE OIL (CHANGE)M1001002600360
Use the specified oil. (Refer to P.00-35.)
Use care as oil could be hot.
1. After warming up the engine, remove the oil filler cap.
2. Remove the drain plug to allow the engine oil to drain.
3. Install a new drain plug gasket so that it faces in the
direction shown in the illustration, and then tighten the drain
plug to the specified torque.
Tightening torque: 39
5 Nm (29 3 ft-lb)
4. Pour new engine oil in through the oil filler hole.
Specified Engine Oil:
To ta l q u a n t i t y :
<3.8L Engine> 4.6 Litres
5. Install the engine oil filler cap.
6. Start the engine and run it at idle for a few minutes.
7. Pull out the oil dipstick slowly and check that the oil level is
within the marks on the oil dipstick.
8. Check that the oil is not excessively dirty, that there is no
coolant or petrol mixed in, and that it has sufficient viscosity.
10. ENGINE OIL FILTER (REPLACE)M1001002700345
The quality of replacement filters varies considerably. Only high
quality filters should be used to assure most efficient service.
Genuine oil filters require that the filter is capable of withstand-
ing a pressure of 1,800 kPa (261 psi) are high quality filters.
.

MAINTENANCE SERVICE
GENERAL00-45
Engine Oil Filter Selection
This vehicle is equipped with a full-flow, throw-away oil filter.
The same type of filter is recommended as a replacement filter
for this vehicle. It is possible, particularly in cold weather, that
this vehicle may develop high oil pressure for a short duration.
Make sure that any replacement filter used on this vehicle is a
high-quality filter. The filter must withstand a pressure of 1,800
kPa (261 psi) [manufacturer's specifications] to avoid filter and
ultimately engine damage. The Genuine Mitsubishi high-quality
filter and is strongly recommended for use on this vehicle.
Any replacement oil filter should be installed in accordance with
the oil filter manufacturer's installation instructions.
.
Oil Filter Replacement
Use care as oil could be hot.
1. Drain the engine oil by removing the oil drain plug.
2. Use an oil filter wrench to remove the engine oil filter.
3. Clean the filter bracket side mounting surface and ensure
the old O-ring has been removed.
4. Apply a small amount of engine oil to the O-ring of the new
oil filter.
5. Where the oil filter O-ring touches the oil pan flange, tighten
the oil filter to the specified torque using the
commercially-available tool.
Tightening torque:
: Approximately 3/4 turn [14
2 Nm]
6. Add new engine oil through the oil filler.
11. TRANSMISSION FLUIDM1001002900338
TRANSMISSION FLUID CHECK
1. Drive the vehicle until the transmission fluid temperature
rises to the normal operating temperature [70
80C (158
176
F)].
NOTE: The transmission fluid temperature is measured with
Diagnostic Tool (MUT-III).

MAINTENANCE SERVICE
GENERAL00-47
6. Securely insert the dipstick.
NOTE: The transmission fluid should always be replaced
under the following conditions:
.
When troubleshooting the transaxle.
When overhauling the transaxle.
When the transmission fluid is noticeably dirty or burnt
(driving under severe conditions).
TRANSMISSION FLUID CHANGE
Refer to GROUP 23A, Automatic Transmission - On-vehicle
Service P.23A-296.
12. ENGINE COOLANT (CHANGE)M1001003100357
Check the cooling system parts such as the radiator, heater
and oil cooler hoses, thermostat and their connections for leak-
age and damage.
.
CHANGING COOLANT
1. Set the temperature control knob to the "HOT" position.
2. Run the engine until the engine coolant warms, and then
stop the engine.
When removing the radiator cap, use care to avoid
contact with hot coolant or steam. Place a shop towel
over the cap and turn the cap counterclockwise a lit-
tle to let the pressure escape through the vinyl tube.
After relieving the steam pressure, remove the cap by
slowly turning it counterclockwise.
3. Drain the water from the radiator, heater core and engine
after unplugging the radiator drain plug and removing the
radiator cap.

MAINTENANCE SERVICE
GENERAL00-49
14.Remove the radiator cap after the engine has cooled, and
pour in coolant up to the brim. Reinstall the cap.
Do not overfill the radiator condenser tank assembly.
15.Add coolant to the radiator condenser tank assembly
between the "FULL" and "LOW" mark if necessary.
13. COOLANT HOSES (RADIATOR HOSE,
HEATER HOSE) (INSPECT)
M1001009700034
Inspect the surface of radiator hoses and heater hoses for heat
and mechanical damage. Hard and brittle rubber, cracking,
tears, cuts, abrasions and excessive swelling indicate deterio-
ration of the rubber.
14. DISC BRAKE PADS, ROTORS (INSPECT FOR
WEAR)
M1001003200291
Check for fluid contamination and wear. Replace the complete
set of pads if any one pad is defective.
Thickness of lining
Minimum limit: 2.0 mm
The pads for the right and left wheels should be replaced
at the same time. Never split or intermix brake pad sets. All
four pads must be replaced as a complete set.
15. BRAKE HOSES (CHECK FOR
DETERIORATION OR LEAKS)
M1001003400314
Inspection of brake hoses should be included in all brake ser-
vice operations.
The hoses should be checked for:
1. Incorrect length, severe surface cracking, stretching,
scuffing or worn spots (If the fabric casing of the hoses is
exposed by cracks or abrasion in the rubber hose cover, the
hoses should be replaced. Eventual deterioration of the
hose and possible bursting failure may occur).
2. Incorrect installation, twisting or interference with wheel, tyre
or chassis.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-3
TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
INTRODUCTION TO TRACTION CONTROL SYSTEM (TCL) DIAGNOSISM1136004600026
TCL Diagnostic Trouble Code Detection
Conditions
TCL diagnostic trouble codes (TCL DTCs) are set
under different conditions, depending on the mal-
function detected. Most TCL DTCs will only be set
during vehicle operation. Some TCL DTCs will also
be set during the TCL self-check immediately after
the engine is started. When you check if an TCL DTC will be displayed again after the DTC has been
erased, you should recreate the TCL DTC set condi-
tions. Depending on the detection timing and set
conditions for the specific TCL DTC, you must either
drive the vehicle or turn the engine off and restart it.
To set the proper conditions for that DTC again, refer
to "TCL DTC SET CONDITIONS" for each TCL DTC
that you are trying to reset.
TROUBLESHOOTING STRATEGYM1136003100062
Use these steps to plan your diagnostic strategy. If
you follow them carefully, you will check most of the
possible causes of a TCL problem.
1. Gather information from the customer.
2. Verify that the condition described by the
customer exists.
3. Check the vehicle for any TCL DTC. (Refer to
P.13C-3, Diagnosis Function
How to Read and
Erase Diagnostic Trouble Codes).
4. If you can verify the condition but no TCL DTCs
are set, and the malfunction may be intermittent.
(Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
How
to Cope with Intermittent Malfunctions P.00-14).
5. If you can verify the condition but there is no TCL
DTCs, or the system cannot communicate with
diagnostic tool MB991958 (MUT-III sub
assembly), and find the fault. (Refer to P.13C-23,
Symptom Chart).6. If there is a TCL DTC, record the number of the
code, then erase the code from vehicle memory
using the diagnostic tool MB991958 (MUT-III sub
assembly). (Refer to P.13C-3, Diagnosis Function
How to Read and Erase Diagnostic Trouble
Codes).
7. Re-create the TCL DTC set conditions to see if
the same TCL DTC will set again. (Refer to
P.13C-3, Diagnosis Function
How to Read and
Erase Diagnostic Trouble Codes).
If the same TCL DTC sets again, perform the
diagnostic procedures for the set code. (Refer to
P.13C-8, Diagnostic Trouble Code Chart).
NOTE: If the ABS-8 ECU or the active wheel
speed sensor are disconnected, or if the wir-
ing 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 operate normally. To restore the
power supply, the ignition switch must be
turned to the "OFF" position then to the "ON"
position again.
DIAGNOSIS FUNCTIONM1136003200025
HOW TO CONNECT THE DIAGNOSTIC TOOL
(MUT-III)
Required Special Tools:
MB991958: Diagnostic Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.)
MB991827: MUT-III USB Cable
MB991910: MUT-III Main Harness A

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-12
STEP 3. 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.13C-3).
(2) Turn the ignition switch to the "ON" position.
(3) Check if a DTC, which relates to CAN
communication-linked systems below, is set.
ETACS-ECU
DTC (U1100): ENGINE-ECU time-out (related to
engine). (Refer to GROUP 54B, SWS Diagnosis

General Description
Diagnostic Function How to
Read and Erase Diagnostic Trouble Code
P.54B-10).
Combination meter
DTC (U1100): ENGINE-ECU time-out (related to
engine). (Refer to GROUP 54A, Combination Meter
Assembly Diagnosis
Diagnosis Function How to
Read and Erase Diagnostic Trouble Code
P.54A-46).
Multi-center display
DTC (U1100): ENGINE-ECU time-out (related to
engine). (Refer to GROUP 54A, Multi-center Display
Diagnosis Function How to Read and Erase
Diagnostic Trouble Code P.54A-251).
A/C-ECU
DTC (U1100): ENGINE-ECU time-out (related to
engine). (Refer to GROUP 55, Auto A/C Diagnosis

Diagnostic Function
How to Read and Erase Diag-
nostic Trouble Code P.55-6) A/C>.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Disconnect diagnostic tool MB991958.
Q: Is DTC (U1100) set?
YES : Go to Step 4.
NO : Go to Step 5.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-20
STEP 2. Using diagnostic tool MB991958, diagnose the
CAN bus line.
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.
(3) Diagnose the CAN bus line. (Refer to P.13C-3).
(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Disconnect diagnostic tool MB991958.
Q: Is the CAN bus line found to be normal?
YES : Go to Step 3.
NO : Repair the CAN bus lines. (Refer to GROUP 54C,
Diagnosis
Can Bus Diagnostic Chart P.54C-15).
Then go to Step 6.
STEP 3. 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.13C-3).
(2) Turn the ignition switch to the "ON" position.
(3) Check if a DTC, which relates to CAN
communication-linked systems below, is set.
A/C-ECU
DTC U1120: Failure Information on Engine-ECU
(related to engine). (Refer to GROUP 55, Auto A/C
Diagnosis
Diagnostic Function How to Read and
Erase Diagnostic Trouble Code P.55-6).
(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Disconnect diagnostic tool MB991958.
Q: Is DTC U1120 set?
YES : Go to Step 4.
NO : Go to Step 5.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-35
STEP 2. Using diagnostic tool MB991958, check TCL
actuator test item09: Engine TCL Drive.
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 seconds.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
(5) Disconnect diagnostic tool MB991958.
Q: Are the check results for actuator test item 09
satisfactory?
YES : Go to Step 3.
NO : Replace the hydraulic unit (integrated with
ABS/TCL-ECU). (Refer to GROUP 35B
Hydraulic
Unit P.35B-93). Then go to Step 4.
STEP 3. Retest the system
Q: Does the TCL work normally?
YES : It can be assumed that this malfunction is intermittent.
(Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points
How to
Cope with Intermittent Malfunction P.00-14).
NO : Replace the hydraulic unit (integrated with
ABS/TCL-ECU). (Refer to GROUP 35B
Hydraulic
Unit P.35B-93). Then go to Step 4.
STEP 4. Retest the system
Q: Does the TCL work normally?
YES : The procedure is complete.
NO : Return to Step 1.

TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
TRACTION CONTROL SYSTEM (TCL)13C-37
ACTUATOR TEST REFERENCE TABLEM1136003600067
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 diagnostic tool activates the following actuators
for testing. (Refer to P.13C-3).
NOTE: Since the TCL is controlled with the same ABS/TCL-ECU used to control the ABS, the FL, FR, RL or
RR Wheel ABS Drive testing items (No.01 to 04) used only for the ABS also appear. MUT-III
DIAGNOSTIC TOOL
DISPLAYITEM NO. CHECK ITEM PARTS TO BE ACTIVATED
FL wheel ABS Drive* 01 Solenoid valve for front left wheel Solenoid valves and pump
motors in the hydraulic unit
(simple inspection mode) FR wheel ABS Drive* 02 Solenoid valve for front right wheel
RL wheel ABS Drive* 03 Solenoid valve for rear left wheel
RR wheel ABS
Drive*04 Solenoid valve for rear right wheel
Engine TCL Drive 09 TCL operation check Outputs the engine torque
control signal (engine torque =
0) to PCM for three seconds.