Mitsubishi Montero (2004+). Manual - part 365

 

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Mitsubishi Montero (2004+). Manual - part 365

 

 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-947

STEP 5. Check for open circuit and short circuit to ground 
between accelerator pedal position switch connector 
D-138 (terminal No.4) and PCM connector D-133 (terminal 
No.38).
Q: Is the harness wire in good condition?

YES : Replace the PCM. Confirm that the malfunction 

system is eliminated.

NO :  Repair it. Confirm that the malfunction system is 

eliminated.

STEP 6. Check the continuity at accelerator pedal position 
switch harness side connector D-138.
(1) Disconnect the connector D-138 and measure at the 

harness side.

(2) Check for the continuity between terminal No. 5 and 

ground.

• Should be less than 2 ohms.

Q: Does continuity exist?

YES : Go to Step 9.
NO :  Go to Step 7.

AK200945

3

4

5

1

2

8

6

7

AB

CONNECTOR: D-138

HARNESS 
CONNECTOR: 
COMPONENT SIDE

D-138(GR)

AK200939

31

32

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38

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52

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50

51

AB

CONNECTOR: D-133

HARNESS CONNECTOR: 
COMPONENT SIDE

PCM

D-133(GR)

3

4

5

1

2

8

6

7

AK201390

D-138 HARNESS 
CONNECTOR: 
COMPONENT SIDE

AK201390AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-948

STEP 7. Check connector D-135 at PCM for damage.
Q: Is the connector in good condition?

YES : Go to Step 8.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Confirm that the 

malfunction system is eliminated.

STEP 8. Check for open circuit and harness damage 
between accelerator pedal position switch connector 
D-138 (terminal No. 5) and PCM connector D-135 (terminal 
No. 96).
Q: Is the harness wire in good condition?

YES : Replace the PCM. Confirm that the malfunction 

system is eliminated.

NO :  Repair it. Confirm that the malfunction system is 

eliminated.

AK200947

91

92

93

94

95

96

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100

101

102

103

104

105

106

107

108

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112

113

114

115

116

117

118

119

120

CONNECTOR: D-135

HARNESS CONNECTOR: 
COMPONENT SIDE

AB

PCM

D-135(GR)

AK200945

3

4

5

1

2

8

6

7

AB

CONNECTOR: D-138

HARNESS 
CONNECTOR: 
COMPONENT SIDE

D-138(GR)

AK200947

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

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112

113

114

115

116

117

118

119

120

CONNECTOR: D-135

HARNESS CONNECTOR: 
COMPONENT SIDE

AB

PCM

D-135(GR)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-949

STEP 9. Check connector D-133, D-135 at PCM for damage.
Q: Is the connector in good condition?

YES : Go to Step 10.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Confirm that the 

malfunction system is eliminated.

STEP 10. Check for harness damage between accelerator 
pedal position switch connector D-138 (terminal No. 5) and 
PCM connector D-135 (terminal No. 96).
Q: Is the harness wire in good condition?

YES : Replace the PCM. Then confirm that the malfunction 

system is eliminated.

NO :  Repair it. Then confirm that the malfunction system is 

eliminated.

AK200946

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

31

32

33

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52

53

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58

50

51

AB

CONNECTORS: D-133, D-135

D-133 HARNESS CONNECTOR: 
COMPONENT SIDE

D-135 HARNESS CONNECTOR: 
COMPONENT SIDE

PCM

D-135(GR)

D-133(GR)

AK200945

3

4

5

1

2

8

6

7

AB

CONNECTOR: D-138

HARNESS 
CONNECTOR: 
COMPONENT SIDE

D-138(GR)

AK200947

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

CONNECTOR: D-135

HARNESS CONNECTOR: 
COMPONENT SIDE

AB

PCM

D-135(GR)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI)

13A-950

DATA LIST REFERENCE TABLE

M1131152000939

CAUTION

• When shifting the selector lever to D range, the brakes should be applied so that the vehicle does 

not move forward.

• Driving tests always need two persons: one driver and one observer.

NOTE: Sensor 1 indicates the sensor mounted at a position closest to the engine, and sensor 2 indicates the 
sensor mounted at the position second close to the engine.
NOTE: Bank 1 indicates the right bank cylinder, and bank 2 indicates the left bank cylinder.
NOTE: *

1

: In a new vehicle [driven approximately 500 km (311 mile) or less], the volume airflow sensor output 

frequency is sometimes 10% higher than the standard frequency.
NOTE: *

2

: The injector drive time represents the time when the cranking speed is at 250 r/min or below when 

the power supply voltage is 11 volts.
NOTE: *

3

: In a new vehicle [driven approximately 500 km (311 mile) or less], the injector drive time is some-

times 10% longer than the standard time.
NOTE: *

4

:Disconnect the throttle actuator control motor connector, and then delete the diagnosis code that 

was recorded during the inspection with the use of the MB991958 scan tool after the inspection has been 
completed.
NOTE: *

5

: Applicable to GST

NOTE: *

6

: Vehicles for Canada, the headlight, taillight, etc. remain lit even when the lighting switch is in "OFF" 

position but this is no problem for checks.

MUT-III 
SCAN 
TOOL 
DISPLAY

ITEM 
NO. 

INSPECTION 
ITEM

INSPECTION REQUIREMENT

NORMAL 
CONDITION

INSPEC-
TION 
PROCE-
DURE NO.

REFE-
RENCE 
PAGE

A/C 
RELAY

49

A/C 
compressor 
clutch relay

Engine: warming up, idling

OFF

Procedure 
No. 32

P.13A-941

Engine: 
warming up, 
idling

A/C 
compressor 
clutch is not 
operating

OFF

A/C 
compressor 
clutch is 
operating

ON

A/C 
SWITCH

28

A/C switch

Engine: warming up, idling

OFF

Procedure 
No. 32

P.13A-941

Engine: 
warming up, 
idling

A/C 
compressor 
clutch is not 
operating

OFF

A/C 
compressor 
clutch is 
operating

ON

 

 

 

 

 

 

 

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