Mitsubishi Outlander GS45X. Manual — part 587

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-171

DTC P0113: Intake Air Temperature Circuit High Input

.

CIRCUIT OPERATION

• Approximately 5 volts are applied to the intake air

temperature sensor output terminal (terminal No.
1) from the ECM (terminal No. 89) via the resistor
in the ECM. The ground terminal (terminal No. 4)
is grounded with ECM (terminal No. 88).

• The intake air temperature sensor is a negative

temperature coefficient type of resistor. When the
intake air temperature rises, the resistance
decreases.

• The intake air temperature sensor output voltage

increases when the resistance increases and
decreases when the resistance decreases.

.

TECHNICAL DESCRIPTION

• The intake air temperature sensor converts the

intake air temperature to a voltage.

• The ECM checks whether this voltage is within a

specified range.

.

DESCRIPTIONS OF MONITOR METHODS

Intake air temperature sensor output voltage is out of

specified range.

.

MONITOR EXECUTION

Continuous

AK603947

71 72 73 74 75 76 77 78 79 80 81 82

83 84 85 86 87 88 89 90 91 92 93 94

95 96 97 98 99

100 101 102 103 104

112 113 114

109

108

107

110 111

115 116

106

105

118

117

3 4

2

1

AC

88

89

INTAKE AIR TEMPERATURE
SENSOR (INTEGRATED IN
MASS AIRFLOW SENSOR)

ENGINE
CONTROL
MODULE

4

1

5 V

INTAKE AIR TEMPERATURE SENSOR CIRCUIT

VIOLET

BLA

CK-WHITE

A-07

(MU805110)

B-11

AK704096

AB

Air cleaner
assembly

Mass airflow sensor

Connector: A-07

A-07 (GR)

AK704097AB

Connector: B-11

B-11 (GR)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

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.

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

.

DTC SET CONDITIONS
Logic Flow Chart

.

Check Condition

• 2 seconds or more have passed since the engine

starting sequence was completed.

Judgement Criterion

• Intake air temperature sensor output voltage has

continued to be 4.6 volts or higher [corresponding
to an intake air temperature of

−40°C (−40°F) or

lower] for 2 seconds.

.

OBD-II DRIVE CYCLE PATTERN

Refer to Diagnostic Function

− OBD-II Drive Cycle −

Pattern 23

P.13A-11

.

.

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

• Intake air temperature sensor failed.

• Open intake air temperature sensor circuit, or

connector damage.

• ECM failed.

Output voltage < 0.2V

Output voltage > 4.6V

End

No

No

No

Malfunction

Good

No

AK604315

Start

Yes

Yes

Yes

Yes

Continuous

failure for 2secs

Monitoring
conditions

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-173

DIAGNOSIS

Required Special Tools:

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

• MB992110: Power Plant ECU Check Harness

STEP 1. Using scan tool MB991958, check data list item 5:
Intake Air Temperature Sensor.

CAUTION

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to the data reading mode for item

5, Intake Air Temperature Sensor.

• The intake air temperature and temperature shown with

the scan tool should approximately match.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the sensor operating properly?

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 Malfunctions

P.00-15

.

NO : Go to Step 2.

STEP 2. Check harness connector A-07 at the intake air
temperature sensor for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 3.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 10.

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

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STEP 3. Check the intake air temperature sensor.
(1) Disconnect the intake air temperature sensor connector

A-07.

(2) Measure the resistance between intake air temperature

sensor side connector terminal No. 1 and No. 4.

• There should be continuity. (0.30 − 17 kΩ)

Q: Is the measured resistance between 0.30 and 17 k

Ω?

YES : Go to Step 4.
NO : Replace the mass airflow sensor. Then go to Step 10.

STEP 4. Measure the sensor supply voltage at intake air
temperature sensor harness side connector A-07.
(1) Disconnect the connector A-07 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 between 4.5 and 4.9 volts.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage between 4.5 and 4.9 volts?

YES : Go to Step 7.
NO : Go to Step 5.

STEP 5. Check harness connector B-11 at ECM for
damage.
Q: Is the harness connector in good condition?

YES : Go to Step 6.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 10.

1

2

3 4

AK604486AB

Intake air temperature
sensor connector

AK203042

2

1

3

4

AH

A-07 harness
connector:
component side