Mitsubishi Outlander XL. Manual - part 327

ZK603417

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

Special tool 48-pin connector 
component side

AA00

(4)

Measure the voltage between terminal 114 and ground.

｠

The voltage should measure between 2.0 and 3.0 volts.

(5)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is the measured voltage between 2.0 and 3.0 volts?

YES:

 Check harness connector C-129 at intermediate

connector for damage, and repair or replace as required.
Refer to GROUP 00E, Harness connector Inspection P.
00E-2. If intermediate connector C-129 is in good
condition, repair it because of harness damage fuel tank
differential pressure sensor connector D-19 (terminal No.
3) and ECM connector B-11 (terminal No. 114). Then go to
Step 7.

NO:

 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 go to Step 7.

STEP 5. Check the harness wire between ECM connector
B-11 and fuel tank differential pressure sensor connector
D-19 for damage.

(1)

Disconnect  the  connector  B-11  and  D-19  measure  at  the
harness side.

ZK603418

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

2

3

D-19 harness connector:
component side 

B-11 harness connector:
component side 

AA00

(2)

Measure  the  resistance  between  connector  B-11  and
connector D-19.

a
.

Connector  B-11  (terminal  No.  112)  and  connector  D-19
(terminal No. 1).

b
.

Connector  B-11  (terminal  No.  113)  and  connector  D-19
(terminal No. 2).

｠

Should be less than 2 ohms.

Q:Is the measured resistance less than 2 ohms?

YES:

 Go to Step 6.

NO:

 Repair the damaged harness wires. Then go to Step 7.

STEP 6. Replace the fuel tank differential pressure sensor.

(1)

Replace the fuel tank differential pressure sensor.

(2)

Carry  out  test  drive  with  the  drive  cycle  pattern.  Refer  to
Diagnostic  Function.  OBD-II  Drive  Cycle.  Pattern  16  P.
13Ab-8.

(3)

Check the diagnostic trouble code (DTC).

Q:Is DTC P0451 set?

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-503

DIAGNOSTIC TROUBLE CODE PROCEDURES

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 go to Step 7.

NO:

 The inspection is complete.

STEP 7. Perform the OBD-II drive cycle.

(1)

Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic  Function  -  OBD-II  Drive  Cycle  -  Pattern  16  P.
13Ab-8.

(2)

Check the diagnostic trouble code (DTC).

Q:Is DTC P0451 set?

YES:

 Repeat the troubleshooting.

NO:

 The procedure is complete.

DTC P0452: Evaporative Emission Control System Pressure Sensor Low Input

M11310100407USA0000010000

ZK603432

K

A

B

C

D

E

F

G

H

I

J

AA00

Intake manifold

Fuel tank

Evaporative emission
ventilation solenoid

Check valve

Evaporative emission
purge solenoid

Evaporative  
emission canister

System diagram

Air filter

Vent pipe

Fuel tank differential
pressure sensor

 

13Ab-504

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

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

2

8

7

6

5

4

3

11

21

20

19

18

17

16

15

14

13

12

9

22

1

10

3

2

1

ZK603433

3

2

1

4

2

3

114

113

112

5 V

Y

ello

w-b

lac

k

Y

ello

w-b

lac

k

Bro

wn

Red-g

reen

Red-g

reen

Bro

wn

Fuel Tank Differential Pressure Sensor Circuit

AA00

Fuel tank 
differential 
pressure 
sensor

D-19

(MU802723)

C-129

B-11

Engine
control
module

 

ZK603592

ECM

B-11 (GR)

Connector: B-11

AA00

ZK603651AA00

C-129

Connector: C-129

 

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-505

DIAGNOSTIC TROUBLE CODE PROCEDURES

ZK603517

Fuel tank differential
pressure sensor

D-19

Connector: D-19

AA00

 

CIRCUIT OPERATION

｠

The  ECM  (terminal  No.  114)  supplies  a  5-volt
reference signal to the fuel tank differential pressure
sensor  (terminal  No.  3).  The  fuel  tank  differential
pressure  sensor  (terminal  No.  2)  is  grounded
through the ECM (terminal No. 113).

｠

The fuel tank differential pressure sensor (terminal
No. 1) returns a voltage signal to the ECM (terminal
No. 112) that is proportional to the pressure in the
fuel tank.

TECHNICAL DESCRIPTION

｠

The  ECM  monitors  the  fuel  tank  differential
pressure sensor output voltage.

｠

The  ECM  determines  whether  the  fuel  tank
differential pressure sensor signal voltage is within
normal operating parameters.

DESCRIPTIONS OF MONITOR METHODS

｠

Compare  purge  solenoid  status  with  fuel  tank
differential pressure sensor output voltage.

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)

｠

Evaporative emission purge solenoid monitor

｠

Evaporative emission ventilation solenoid monitor

Sensor (The sensors below are determined to be
normal)

｠

Mass airflow sensor

｠

Barometric pressure sensor

｠

Intake air temperature sensor

｠

Engine coolant temperature sensor

｠

Accelerator pedal position sensor

13Ab-506

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES