Mitsubishi Outlander XL. Manual — part 404

ZK603194

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

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

99 98 97 96 95

100

101

102

103

104

105

106

112

113

114

109 108

107

110

111

115

116

117

118

AA00

Special tool 48-pin
connector:
component side

(2)

Measure the voltage between terminal No. 104 and ground.

｠

Voltage should be battery positive voltage.

Q:Is battery positive voltage (approximately 12 volts)

present?

YES:

Go to Step 6.

NO:

Repair harness wire between relay box (2) and ECM

connector B-11 (terminal No. 104) because of short
circuit. Then confirm that the malfunction symptom is
eliminated.

STEP 6. Check for continuity at ECM M/T or PCM A/T
harness side connector B-11.

(1)

Disconnect the connector B-11 and measure at the harness
side.

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

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

99 98 97 96 95

100

101

102

103

104

105

106

112

113

114

109 108

107

110

111

115

116

117

118

ZK603195AA00

B-11 harness
connector:
component side

(2)

Check for the continuity between terminals (No. 81, No. 93)
and ground.

｠

Should be less than 2 ohms.

Q:Does continuity exist?

YES:

Go to Step 7.

NO:

Repair harness wire between ECM connector B-11

(terminal No. 81, No. 93) and ground because of open
circuit and harness damage. Then confirm that the
malfunction symptom is eliminated.

STEP 7. Measure the power supply voltage at ECM harness
side connector B-11.

(1)

Disconnect the connector B-11 and measure at the harness
side.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-811

SYMPTOM PROCEDURES

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

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

99 98 97 96 95

100

101

102

103

104

105

106

112

113

114

109 108

107

110

111

115

116

117

118

ZK603196AA00

B-11 harness
connector:
component side

(2)

Measure the voltage between terminal No. 73 and ground.

｠

Voltage should be battery positive voltage.

Q:Is battery positive voltage (approximately 12 volts)

present?

YES:

Go to Step 8.

NO:

Repair harness wire between MFI relay connector and

ECM A-33X (terminal No. 1) connector B-11 (terminal No.
73) because of open circuit. Then confirm that the
malfunction symptom is eliminated.

STEP 8. Check for open circuit and harness damage
between MFI relay connector A-33X (terminal No. 2) and
ECM connector B-11 (terminal No. 82).

ZK603197AA00

B-11 harness
connector:
component side

A-33X harness

connector :
component side

4

1

3

2

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

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

99 98 97 96 95

100

101

102

103

104

105

106

112

113

114

109 108

107

110

111

115

116

117

118

(1)

Disconnect the connector A-33X and B-11 measure at the
harness side.

(2)

Measure the resistance between connector A-33X (terminal
No. 2) and connector B-11 (terminal No. 82).

｠

Should be less than 2 ohms.

Q:Is the harness wire in good condition?

YES:

Replace the ECM. When the ECM is replaced, register

the ID code. Refer to GROUP 42B, ID Code Registration
Judgment Table <Vehicles with KOS> P.42B-12or GROUP
42C, ID Code Registration Judgment Table <Vehicles with
WCM> P.42C-8.Then confirm that the malfunction
symptom is eliminated.

NO:

Repair it. Then confirm that the malfunction symptom

is eliminated.

13Ab-812

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 22: Fuel pump system.

M11310100305USA0000010000

1

3

2

4

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

ZK602871

1 2 3
4 5 6

1

2 3

4

5

R

IG2

ST

LOCK

ACC

IG1

2

1 2 3 4

5 6 7

15

14

13

12

11

10

9

8

1 2

1 2

1 2 3 4

5 6 7

12

11

10

15 16

14

13

9

8

TO EC M

5

M

4

BLUE

1

C-314

MU801323

1

C-307

MU801325

6

C-317

PINK

FUEL PUMP
MODULE

D-20

(MU802058)

FUEL PUMP RELAY

ENGINE
CONTROL
MODULE

ETACS-ECU

B-11

11

96

C-304

BLA

CK

15A

A-33X

MFI
RELAY

4

3

1

2

23

OFF

ON

OFF

ON

FUEL PUMP CIRCUIT

RELAY BOX
(ENGINE COMPARTMENT)

WHITE

IGNITION SWITCH

C-210

AA00

WHITE

FUSIBLE LINK

WHITE

GREEN

36

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-813

SYMPTOM PROCEDURES

ZK603638AA00

C-210

Connector: C-210

ZK603648AA00

Fuel pump module

D-20 (GR)

Connector: D-20

ZK603589

MFI relay

A-33X

Connector: A-33X

AA00

ZK603646 AA00

ETACS-ECU

C-317

Connectors: C-304, C-307, C-314 and C-317

C-304

C-307 (B)

C-314

ZK603592

ECM

B-11 (GR)

Connector: B-11

AA00

CIRCUIT OPERATION

｠

The fuel pump drive power is supplied from MFI
relay (terminal No. 2) to fuel pump relay (C-307
ETACS-ECU connector terminal No. 1) in the
ETACS-ECU.

｠

The battery positive voltage is applied by the
ignition switch to the fuel pump coil (C-317 ETACS-
ECU connector terminal No. 6) in the ETACS-ECU.
The ECM turns "ON" the relay by turning "ON" the
power transistor in the unit so as to conduct power
to the fuel pump relay coil (via the C-304 ETACS-
ECU connector terminal No. 11).

｠

When the fuel pump relay is turned "ON", the
battery positive voltage will be supplied from the fuel
pump relay (C-314 ETACS-ECU connector terminal
No. 1) to the fuel pump.

COMMENT

｠

When the ignition switch ON signal is inputted into
the ECM, the ECM turns ON the fuel pump relay.
This causes the battery voltage to be supplied to the
fuel pump.

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

｠

Malfunction of the fuel pump relay.

｠

Malfunction of the fuel pump.

｠

Improper connector contact, open or short-
circulated harness wire.

｠

Malfunction of the ECM.

13Ab-814

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

SYMPTOM PROCEDURES