Mitsubishi Outlander GS45X. Manual — part 932

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-661

STEP 1. Using scan tool MB991958, read the diagnostic
trouble code (DTC).

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) Read the DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P0461 set?

YES : Go to Step 2.
NO : Go to Step 4.

STEP 2. Check fuel gauge.
Q: Is the fuel gauge functioning?

YES : Go to Step 3.
NO : Refer to GROUP 54A, Combination Meter

− Trouble

Symptom Chart

P.54A-69

.

STEP 3. Check the trouble symptoms.
Check that the fuel gauge operates correctly.
Q: Does the fuel gauge operates correctly?

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 : Replace the ECM. When the ECM is replaced,

register the ID code. Refer to GROUP 42B, Diagnosis
− ID Codes Registration Judgment Table <Vehicles

with KOS>

P.42B-15

or GROUP 42C, Diagnosis

− ID

Codes Registration Judgment Table <Vehicles with
WCM>

P.42C-10

. Then go to Step 6.

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-662

STEP 4. Check the fuel level sensor (sub).
Check to see if the fuel level sensor is normal. Refer to GROUP
54A, Combination Meter

− On-vehicle Service − Fuel Level

Sensor Check

P.54A-107

.

Q: Is the fuel level sensor (sub) normal?

YES : Go to Step 5.
NO : Replace the fuel level sensor (sub). Then go to Step

6.

STEP 5. Check the trouble symptoms.
Check that the fuel gauge operates correctly.
Q: Does the fuel gauge operates correctly?

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 : Replace the ECM. When the ECM is replaced,

register the ID code. Refer to GROUP 42B, Diagnosis
− ID Codes Registration Judgment Table <Vehicles

with KOS>

P.42B-15

or GROUP 42C, Diagnosis

− ID

Codes Registration Judgment Table <Vehicles with
WCM>

P.42C-10

. Then go to Step 6.

STEP 6. Check the trouble symptoms.
Check that the fuel gauge operates correctly.
Q: Does the fuel gauge operates correctly?

YES : The inspection is complete.
NO : Retry the troubleshooting.

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-663

DTC P2100: Throttle Actuator Control Motor Circuit (Open)

6

1 2 3 4 5

AKA00830

1

2

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

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

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

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

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

1

2 3

4

5 6

ORANGE

WHITE

B-08

(MU805200)

15

1

16

2

GND

GND

B-10

B-11

ENGINE
CONTROL
MODULE

THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT

THROTTLE ACTUATOR
CONTROL MOTOR

AB

BLA

CK

BLA

CK

71

83

3

2

A-66

(MU802755)

GROUND
(FRONT: LH)

AKA00835

Connector: A-66

A-66 (GR)

AB

AK900133 AD

B-08 (B)

Connector: B-08

Throttle body assembly (incorporating
throttle position sensor)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-664

.

CIRCUIT OPERATION

• Controls the current that is applied from the ECM

(terminals No. 15, No. 16) to the throttle actuator
control motor (terminals No. 1, No. 2).

.

TECHNICAL DESCRIPTION

• ECM varies the direction and the amperage of

the current that is applied to the throttle actuator
control motor in order to control the opening of
the throttle valve.

.

DESCRIPTIONS OF MONITOR METHODS

The voltage difference between the throttle position

sensor output voltage and the throttle position
sensor output at the throttle actuator control
motor relay off is smaller than the specified value.

.

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

.

DTC SET CONDITIONS

Check Conditions

• Battery positive voltage is higher than 8.3 volts.

• The output voltage of the (main) throttle position

sensor minus the proposed output voltage
becomes 0.1 volt or more.

• The output voltage of the (sub) throttle position

sensor minus the proposed output voltage
becomes 0.1 volt or more.

• The drive duty of the throttle actuator control

motor is 100 percent or more.

• Except while during cranking

or

• Battery positive voltage is higher than 8.3 volts.

• The proposed output voltage minus the output

voltage of the (main) throttle position sensor
becomes 0.1 volt or more.

• The proposed output voltage minus the output

voltage of the (sub) throttle position sensor
becomes 0.1 volt or more.

• The drive duty of the throttle actuator control

motor is 100 percent or more.

• Except while during cranking

Judgement Criterion

• The output voltage of the throttle position sensor

(main) minus the learning value of the mid-
dle-opened degree becomes 0.2 volt or less for
0.4 second.

or

• The output voltage of the throttle position sensor

(sub) minus the learning value of the mid-
dle-opened degree becomes 0.2 volt or less for
0.4 second.

.

OBD-II DRIVE CYCLE PATTERN

None.

.

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

• Throttle actuator control motor failed.

• Connector damage.

• Harness damage.

• ECM failed.

AK700430AB

ECM

B-11 (GR)

B-10 (GR)

Connectors: B-10, B-11