Mitsubishi Outlander GS45X. Manual — part 880

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-453

.

CIRCUIT OPERATION

• The camshaft position sensor power is supplied

from the ECM (terminal No. 9).

• Terminal No. 2 of the camshaft position sensor is

grounded with ECM (terminal No. 30).

• A 5-volt voltage is applied on the camshaft posi-

tion sensor output terminal (terminal No. 3) from
the ECM (terminal No. 14). The camshaft position
sensor generates a pulse signal when the output
terminal is opened and grounded.

.

TECHNICAL DESCRIPTION

• The camshaft position sensor functions to detect

the top dead center position of the number 1 cyl-
inder and to convert that data to pulse signals
that are input to the ECM.

• When the engine is running, the camshaft posi-

tion sensor outputs a pulse signal.

• The ECM checks whether pulse signal is input

while the engine is cranking.

.

DESCRIPTIONS OF MONITOR METHODS

• Crankshaft position sensor signal does not

change.

• Crankshaft position sensor signal is not normal

pattern.

.

MONITOR EXECUTION

Continuous

.

MONITOR EXECUTION CONDITIONS
(Other monitor and Sensor)

Other Monitor (There is no temporary DTC stored

in memory for the item monitored below)

• Not applicable

Sensor (The sensor below is determined to be

normal)

• Not applicable

.

AK700416

AB

Camshaft
position sensor

Exhaust gas
recirculation valve

B-112 (GR)

Connector: B-112

AK700401AB

ECM

B-10 (GR)

Connector: B-10

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-454

DTC SET CONDITIONS <Range/Performance problem - Alignment>

Logic Flow Chart

.

DTC SET CONDITIONS

Check Condition

• Engine is being cranked.

or

• Engine speed is higher than 500 r/min excluding

during cranking.

Judgement Criterion

• Normal signal pattern has not been input for cyl-

inder identification from the crankshaft position
sensor signal and camshaft position sensor sig-
nal for 2 seconds.

.

Good

Malfunction

Correct signal

pattem is detected

End

No

No

No

AK604335

Start

Yes

Yes

Yes

Monitoring
conditions

Continuous

failure for 2secs

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-455

DTC SET CONDITIONS <Range/Performance problem - Circuit continuity>

Logic Flow Chart

.

Check Condition

• Engine is being cranked.

or

• Engine speed is higher than 500 r/min excluding

during cranking.

Judgement Criterion

• Camshaft position sensor output voltage has not

changed (no pulse signal is input) for 2 seconds.

.

OBD-II DRIVE CYCLE PATTERN

Refer to Diagnostic Function

− OBD-II Drive Cycle −

Pattern 22

P.13B-11

.

.

TROUBLESHOOTING HINTS (The most
likely causes for this code to be set are:)

• Crankshaft position sensor failed.

• Camshaft position sensing cylinder failed.

• Connector damage

• Harness damage

• ECM failed.

DIAGNOSIS

Required Special Tools:

• MB991709: Test Harness

• MB992110: Power Plant ECU Check Harness

Start

End

No

Yes

Yes

Yes

No

No

Malfunction

Good

Continuous

failure for 2secs

Output signal

changes

Monitoring

conditions

AK700485

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-456

STEP 1. Check harness connector B-112 at camshaft
position sensor and harness connector B-10 at for
damage.
Q: Is the harness connector in good condition?

YES : Go to Step 2.
NO : Repair it. Refer to GROUP 00E, Harness Connector

Inspection

P.00E-2

. Then go to Step 9.

STEP 2. Measure the sensor supply voltage at camshaft
position sensor connector B-112.
(1) Disconnect the connector B-112 and measure at the

harness side.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 1 and ground.

• Voltage should be battery positive voltage.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is battery positive voltage (approximately 12 volts)

present?
YES : Go to Step 5.
NO : Go to Step 3.

STEP 3. Measure the sensor supply voltage at ECM
connector B-10 by using power plant ECU check harness
special tool MB992110.
(1) Disconnect all ECM connectors. Connect the power plant

ECU check harness special tool MB992110 between the
separated connectors.

(2) Turn the ignition switch to the "ON" position.

(3) Measure the voltage between terminal No. 9 and ground.

• Voltage should be battery positive voltage.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is battery positive voltage (approximately 12 volts)

present?
YES : Repair harness wire between the camshaft position

sensor connector B-112 (terminal No. 1) and the ECM
connector B-10 (terminal No. 9) because of open
circuit or harness damage. Then go to step 6.

NO : Go to Step 4.

1

2

3

AK700317AB

B-112 harness
connector:
component side

AK700249

ECM

AB

Body side harness

MB992110

AK700312

16 15 14 13 12 11 10 9 8 7 6 5 4 3

2

1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

AB

Special tool 64-pin
connector:
component side