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Mitsubishi Outlander GS45X. Manual - part 940

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-693

DTC SET CONDITIONS Range/Performance problem -relation between main and sub

Logic Flow Chart

Check Condition

• Change of accelerator pedal position sensor

(sub) output voltage per 25 milliseconds is lower
than 0.06 volt.

Judgement Criterion

• The accelerator pedal position sensor (sub) out-

put voltage subtracted from the accelerator pedal
position sensor (main) output voltage is more
than 0.4 volt for 0.2 second.
NOTE: The accelerator pedal position sensor
voltage used for the judgement is converted into
the accelerator pedal position sensor voltage for
the internal processing by the ECM.

OBD-II DRIVE CYCLE PATTERN

None.

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

• Accelerator pedal position sensor failed.

• Connector damage.

• Harness damage.

• ECM failed.

AK604364

Start

Yes

{APS (main) - APS (sub)}

>= 0.4V

Continuous

failure for 0.2sec

Malfunction

End

Good

Monitoring
conditions

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-694

DIAGNOSIS

Required Special Tools:

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

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

STEP 1. Check harness connector C-123 at accelerator
pedal position sensor and harness connector B-11 at ECM
for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 2.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 4.

STEP 2. Check for harness damage between accelerator
pedal position sensor connector C-123 and ECM
connector B-11.
(1) Disconnect the connector C-123 and B-11 measure at the

harness side.

(2) Measure the resistance between connector C-123 and

connector B-11.

a. Connector C-123 (terminal No. 1) and connector B-11

(terminal No. 75).

b. Connector C-123 (terminal No. 2) and connector B-11

(terminal No. 76).

c. Connector C-123 (terminal No. 3) and connector B-11

(terminal No. 74).

d. Connector C-123 (terminal No. 4) and connector B-11

(terminal No. 78).

e. Connector C-123 (terminal No. 5) and connector B-11

(terminal No. 79).

f. Connector C-123 (terminal No. 6) and connector B-11

(terminal No. 77).

• Should be less than 2 ohms.

Q: Is the measured resistance less than 2 ohms?

YES : Go to Step 3.
NO : Repair it. Then go to Step 4.

AK700286

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

6 5 4 3 2

C-123 harness connector:
component side

B-11 harness
connector:
component side

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-695

STEP 3. Using scan tool MB991958, check data list.

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) Check the following items in the data list. Refer to Data List

Reference Table

P.13B-836

a. Item 11: Accelerator Pedal Position Sensor (main).
b. Item 12: Accelerator Pedal Position Sensor (sub).

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Are they operating properly?

YES : Go to Step 4.
NO : Repair or replace it. Then go to Step 4.

STEP 4. Using scan tool MB991958, read the diagnostic
trouble code (DTC).
(1) Turn the ignition switch to the "ON" position.
(2) After the DTC has been deleted, read the DTC again.
(3) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P2138 set?

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

DTC P2195: Heated Oxygen Sensor Inactive (bank 1, sensor 1)

TECHNICAL DESCRIPTION

• The ECM effects air/fuel ratio feedback control in

accordance with the signals from the right bank
heater oxygen sensor (front).

• If the right bank heated oxygen sensor (front) has

deteriorated, corrections will be made by the right
bank heated oxygen sensor (rear).

• DTC P2195 becomes stored in memory if a fail-

ure is detected in the right bank heated oxygen
sensor (front).

DESCRIPTIONS OF MONITOR METHODS

Right bank heated oxygen sensor (front) output volt-

age does not cross lean/rich criteria (about 0.5
volt) within specified period.

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)

• Heated oxygen sensor (front) heater monitor

• Misfire monitor

Sensor (The sensor below is determined to be

normal)

• Engine coolant temperature sensor

• Intake air temperature sensor

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-696

DTC SET CONDITIONS

Logic Flow Chart

Check Conditions

• More than 350 seconds or more have passed

since the engine starting sequence was com-
pleted.

• Engine coolant temperature is 7°C (45°F) or

more.

• Under the closed loop air/fuel ratio control.

• Intake air temperature is more than −10°C (14°F)

Judgment Criterion

• Right bank heated oxygen sensor (front) output

voltage is less than lean/rich criteria (about 0.5
volt) for 128 seconds.

OBD-II DRIVE CYCLE PATTERN

Refer to Diagnostic Function

− OBD-II Drive Cycle −

Pattern 21

P.13B-11

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

• Right bank heated oxygen sensor (front) deterio-

rated.

• Connector damage.

• Harness damage.

• ECM failed.

DIAGNOSIS

Required Special Tools:

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

• MB991824: V.C.I.

• MB991827: USB Cable

• MB991910: Main Harness A

AK604365

Good

Malfunction

End

128secs have passed?

Heated oxygen

sensor (front) output voltage

< lean/rich criteria

Start

Yes

Monitoring
conditions

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