Mitsubishi Outlander XL. Manual - part 328

 

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Mitsubishi Outlander XL. Manual - part 328

 

 

DTC SET CONDITIONS

Logic Flow Chart

ZK603436

No

Continuous

failure for 5 secs

Start

End

No 

No

Yes

Yes     

Malfunction

Good

Output voltage

< 0.2v

Output voltage

> 4.8v

AA00

Logic Flow Chart

Yes 

No

Yes

Monitoring

conditions

Check Conditions

2 seconds or more have passed since the starting
sequence was completed.

Judgement Criteria

The  fuel  tank  differential  pressure  sensor  output
voltage remains 0.2 volt or less for 5 seconds.

OBD-ll DRIVE CYCLE PATTERN
Refer to Diagnostic Function - OBD-ll Drive Cycle -
Pattern 24 P.13Ab-8.

TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CODE TO BE SET ARE:)

Connector damage.

Harness damage.

Fuel tank differential pressure sensor failed.

ECM failed.

OVERVIEW OF TROUBLESHOOTING

DTC  P0452  can  be  set  by  a  faulty  fuel  tank
differential  pressure  sensor  or  related  circuit,  or
ECM failure.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-507

DIAGNOSTIC TROUBLE CODE PROCEDURES

To check for system blockage, do a performance
test which uses a mechanical vacuum gauge and
scan tool MB991958 set on the fuel tank differential
pressure  sensor  (TANK  PRS  SNSR  73).  The

mechanical  gauge  reading  is  used  to  verify  scan
tool  MB991958  reading.  A  comparison  of  the
mechanical  gauge  with  the  reading  on  scan  tool
MB991958 will locate a problem in the system.

 

DIAGNOSIS

Required Special Tools:

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

MB991824: V.C.I.

MB991827: M.U.T.-III USB Cable

MB991910: M.U.T.-III Main Harness A

MB992110: Power Plant ECU Check Harness

STEP 1. Using scan tool MB991958, check data list item 52:
Fuel Tank Differential Pressure Sensor.

ZC501967

AC404789

ZC501968

MB991824

MB991827

MB991910

Data link

connector

AA00

To prevent damage to scan tool MB991958, always turn the
ignition  switch  to  the  "LOCK"  (OFF)  position  before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958 to the data link connector.

ZK603402

Hose C

Plug

AA00

(2)

Disconnect hose C from the evaporative emission canister,
and plug the hose.

(3)

Turn the ignition switch to the "ON" position.

(4)

Remove the fuel cap.

(5)

Set scan tool MB991958 to the data reading mode.

Item 52, Fuel Tank Differential Pressure Sensor.

The fuel tank pressure reading on the scan tool should
be 2050 to 2950 mV.

13Ab-508

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

ZK603403AA00

(6)

Connect  the  evaporative  emission  system  pressure  pump
(Miller number 6872A) to the fuel tank filler tube by using fuel
tank adapter (MLR-8382) and pressurize the fuel tank.

The fuel tank pressure reading should increase.

(7)

Turn the ignition switch to the "LOCK" (OFF) position. Then
disconnect scan tool MB991958.

(8)

Remove  the  evaporative  emission  system  pressure  pump
(Miller number 6872A) and the fuel tank adapter (MLR-8382),
and reinstall the fuel cap.

(9)

Connect hose C to the evaporative emission canister.

Q:Is the fuel tank pressure between 2,050 and 2,950 mV?

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 B-11 at ECM and harness
connector D-19 at fuel tank differential pressure sensor for
damage.

Q:Is the harness connector in good condition?

YES:

 Then go to Step 3.

NO:

 Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection P.00E-2. Then go to Step 8.

STEP 3. Measure the 5-volt reference signal at fuel tank
differential pressure sensor connector D-19.

(1)

Remove the second seat assembly (Refer to GROUP 52A,
Second Seat Assembly P.52A-21).

ZK603415

Floor inspection lid (LH)

AA00

(2)

Remove the floor inspection lid (LH).

(3)

Disconnect fuel tank differential pressure sensor connector
D-19.

(4)

Turn the ignition switch to the "ON" position.

ZK603416

1

2

3

AA00

D-19 Harness
connector:
component side 

(5)

Measure the voltage between terminal 3 and ground.

The voltage should measure between 4.9 and 5.1 volts.

(6)

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

Q:Is the measured voltage between 4.9 and 5.1 volts?

YES:

 Go to Step 6.

NO:

 Go to Step 4.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-509

DIAGNOSTIC TROUBLE CODE PROCEDURES

STEP 4. Measure the 5-volt reference signal at ECM
connector B-11 by using check harness special tool
MB992110.

(1)

Disconnect  all  ECM  connectors.  Connect  the  power  plant
ECU  check  harness  special  tool  MB992110  between  the
separated connectors.

ECM

ZK603234AA00

Body side harness 

MB992110

(2)

Turn the ignition switch to the "ON" position.

(3)

Remove the fuel cap.

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 8.

NO:

 Go to Step 5.

STEP 5. Check for short circuit to ground between fuel tank
differential pressure sensor connector D-19 and ECM
connector B-11.

(1)

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

ZK603419

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

B-11 Harness connector: 
component side

AA00

(2)

Check for the continuity between connector B-11 (terminal
No. 114) and ground.

Not continuity.

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 go to Step 8.

NO:

 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 open circuit or harness
damage fuel tank differential pressure sensor connector

13Ab-510

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

 

 

 

 

 

 

 

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