Mitsubishi Outlander (2013+). Manual - part 318

 

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Mitsubishi Outlander (2013+). Manual - part 318

 

 

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-153

PROBABLE CAUSES

• Failed spark plug

• Failed ignition coil

• Open/short circuit or harness damage in ignition 

system circuit or loose connector contact

• Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. Visual check of ignition spark.

• Remove the spark plug and install it to the ignition 

coil.

• Connect the ignition coil connector.

• Disconnect all injector connectors.

• At the engine start, check each spark plug pro-

duces a spark.

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

NO : 

Go to Step 2.

STEP 2. Check spark plug.

• Check spark plug (Refer to GROUP 16 − Ignition 

System 

− On-vehicle Service − Spark Plug Check 

and Cleaning ). 

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Replace the spark plug.

STEP 3. Check ignition coil itself.

• Ignition coil connector check. 

• Check ignition coil itself (Refer to GROUP 16 − 

Ignition System 

− On-vehicle Service − Ignition 

Coil Check ). 

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Repair or replace the connector, or replace 
the ignition coil.

STEP 4. Perform voltage measurement at ignition 
coil connectors.

• Disconnect connector, and measure at harness 

side.

• Ignition switch: "ON"

• Voltage between terminal power supply line and 

body earth.

OK: System voltage

Q: Are the check results normal?

YES : 

Go to Step 6.

NO : 

Go to Step 5.

STEP 5. Connector check: engine control relay 
connector

Q: Is the check result normal?

YES : 

Check intermediate connector, and repair if 

necessary. If intermediate connector is 
normal, check and repair harness between 
engine control relay connector terminal and 
ignition coil connector terminal.

• Check power supply line for 

open/short circuit.

NO : 

Repair or replace the connector.

STEP 6. Perform resistance measurement at 
ignition coil connectors.

• Disconnect connector, and measure at harness 

side.

• Resistance between terminal earth line and body 

earth.

OK: Continuity (2 

Ω or less)

Q: Are the check results normal?

YES : 

Go to Step 7.

NO : 

Check and repair harness between ignition 

coil connector terminal earth line and body 
earth.

• Check earthing line for open circuit 

and damage.

STEP 7. Check harness between ignition coil 
connector and engine-ECU connector.

a. Check and repair harness between ignition coil 

connector terminal and engine-ECU connector 
terminal CIL1.

b. Check and repair harness between ignition coil 

connector terminal and engine-ECU connector 
terminal CIL2.

c. Check and repair harness between ignition coil 

connector terminal and engine-ECU connector 
terminal CIL3.

d. Check and repair harness between ignition coil 

connector terminal and engine-ECU connector 
terminal CIL4.

• Check signal line for open/short circuit and dam-

age.

Q: Are the check results normal?

YES : 

Go to Step 8.

NO : 

Repair or replace the connector, or repair 
the damaged harness wire.

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-154

STEP 8. Check harness between engine control 
relay connector terminal and ignition coil 
connector terminal.

• Check power supply line for damage.

Q: Are the check results normal?

YES : 

Go to Step 9.

NO : 

Repair the damaged harness wire.

STEP 9. Check the trouble symptom.

Q: Does the trouble symptom persist?

YES : 

Replace the engine-ECU.

NO : 

Intermittent malfunction (Refer to GROUP 
00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

Inspection Procedure 23: Engine Oil Pressure Switch System

OPERATION

• Battery voltage is applied to the engine oil pres-

sure switch connector terminal from the 
engine-ECU connector terminal OPSW.

FUNCTION

• Detect the oil pressure conditions and enter the 

result into the engine-ECU. After starting the 
engine if the oil pressure rises to higher than the 
given pressure, the engine oil pressure switch 
turns OFF. Under this condition the engine-ECU 
sends the command of turning off the oil warning 
lamp to the combination meter via CAN.

PROBABLE CAUSES

• Failed engine oil pressure switch

• Open/short circuit or harness damage in engine 

oil pressure switch circuit or loose connector con-
tact

• Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. Perform voltage measurement at engine 
oil pressure switch connector

• Disconnect connector, and measure at the har-

ness side.

• Ignition switch: "ON"

• Voltage between terminal and body earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 4.

NO : 

Go to Step 2.

STEP 2. Check harness between engine oil 
pressure switch connector terminal and 
engine-ECU connector terminal OPSW.

• Check output line for open/short circuit.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair or replace the connector, or repair 
the damaged harness wire.

STEP 3. M.U.T.-III data list

• Data list reference table (Refer to 

P.13A-155

).

a. Item 90: Engine oil pressure switch

Q: Is the check result normal?

YES : 

Intermittent malfunction (Refer to GROUP 

00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

NO : 

Replace the engine-ECU.

STEP 4. Perform voltage measurement at 
engine-ECU connector.

• Disconnect engine-ECU connector, and connect 

special tool power plant ECU check harness 
(MB992110) to measure at connector for inspec-
tion.

• Engine: Idling

• Voltage between terminal OPSW and body earth.

OK: 

1 V or less (ignition switch: "ON")
System voltage (during idling)

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Go to Step 5.

STEP 5. Check harness between engine oil 
pressure switch connector terminal and 
engine-ECU connector terminal OPSW.

• Check output line for damage.

Q: Is the check result normal?

YES : 

Replace the engine oil pressure switch.

NO : 

Repair or replace the connector, or repair 
the damaged harness wire.

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-155

Inspection Procedure 24: In Running, The ECO Mode Indicator Shows Nothing

COMMENTS ON TROUBLE SYMPTOM

• Under a good driving conditions of fuel consump-

tion, the engine-ECU shows ECO mode indicator 
through the CAN.

• If the engine-ECU does not show ECO mode 

indicator no matter how the vehicle runs, the pos-
sible causes are a abnormal combination meter, 
also abnormal communication between the 
engine-ECU and the combination meter.

PROBABLE CAUSES

• Failed ECO mode indicator

• Open/short circuit in combination meter circuit

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III diagnosis code

Q: Is diagnosis code set?

YES : 

Inspection chart for diagnosis code (Refer 

to 

P.13A-23

).

NO : 

Go to Step 2

P.13A-155

.

STEP 2. Check the trouble symptom.

Q: Does the trouble symptom persist?

YES : 

Check combination meter system (Refer to 

GROUP 54A 

− Combination Meter − 

Trouble Symptom Chart ).

NO : 

Intermittent malfunction (Refer to GROUP 
00 

− How to Use 

Troubleshooting/Inspection Service Points 

− 

How to Cope with Intermittent Malfunctions 
).

DATA LIST REFERENCE TABLE

M1131152005462

WARNING

When touching the throttle valve, surely shut off the driving circuits of the throttle valve. In 
the event that the throttle valve is operated, a finger might be injured as the result of being 
caught by the throttle valve.

Item 
No.

Inspection 
Item

Inspection condition

Normal condition

Code 
No. or 
inspecti
on 
procedu
re No.

Reference 
page

1

Battery 
voltage

Ignition switch: "ON"

System voltage

Procedur
e No. 19

P.13A-147

TROUBLESHOOTING

MULTIPOINT FUEL INJECTION (MPI)

13A-156

2

Crank angle 
sensor

• Engine: Cranking

• Tachometer: 

Connected

Compare engine 
speed on 
tachometer with the 
value displayed on 
M.U.T.-III

Matched

Code 
No. 
P0335

P.13A-78

Engine: Idle 
operation

Engine coolant 
temperature: 

−20°C

1,400 

− 1,600 r/min 

<4B11>

1,300 

− 1,500 r/min 

<4B12>

Engine coolant 
temperature: 0

°C

1,350 

− 1,550 r/min 

<4B11>

1,300 

− 1,500 r/min 

<4B12>

Engine coolant 
temperature: 20

°C

1,200 

− 1,400 r/min 

<4B11>

1,300 

− 1,500 r/min 

<4B12>

Engine coolant 
temperature: 40

°C

950 

− 1,150 r/min 

<4B11>

1,200 

− 1,400 r/min 

<4B12>

Engine coolant 
temperature: 80

°C

600 

− 800 r/min 

<4B11>

550 

− 750 r/min 

<4B12>

Item 
No.

Inspection 
Item

Inspection condition

Normal condition

Code 
No. or 
inspecti
on 
procedu
re No.

Reference 
page

 

 

 

 

 

 

 

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