Mitsubishi Outlander GS45X. Manual - part 705

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-643

STEP 7. Replace the accelerator pedal position sensor.
(1) Replace the accelerator pedal position sensor.
(2) Turn the ignition switch to the "ON" position.
(3) After the DTC has been deleted, read the DTC again.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P2123 set?

YES : Replace the ECM. When the ECM is replaced,

with KOS>

P.42B-15

or GROUP 42C, Diagnosis

− ID

Codes Registration Judgment Table <Vehicles with
WCM>

P.42C-10

. Then go to Step 8.

NO : The inspection is complete.

STEP 8. 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 P2123 set?

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

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-644

DTC P2127: Accelerator Pedal Position Sensor (sub) Circuit Low Input

CIRCUIT OPERATION

• A 5-volt power supply is applied on the accelera-

tor pedal position sensor (sub) power terminal
(terminal No. 4) from the ECM (terminal No. 78).

• A voltage that is according to the accelerator

opening angle is sent to the ECM (terminal No.
77) from the accelerator pedal position sensor
(sub) output terminal (terminal No. 6).

• The ground terminal (terminal No. 5) is grounded

with ECM (terminal No. 79).

AK604257

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

1 2 3 4 5

5 V

YELLO

-RED

YELLOE-BLUE

B-11

C-123

HALL IC

ENGINE
CONTROL
MODULE

ACCELERATOR PEDAL POSITION SENSOR (SUB) CIRCUIT

ACCELERATOR PEDAL
POSITION SENSOR (SUB)

BLA

CK-WHITE

AK704097AB

Connector: B-11

B-11 (GR)

AK704152

Accelerator pedal
position sensor

Connector: C-123

C-123 (B)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-645

TECHNICAL DESCRIPTION

• The accelerator pedal position sensor (sub) out-

puts voltage which corresponds to the accelera-
tor pedal depression.

• The ECM checks whether the voltage is within a

specified range.

DESCRIPTIONS OF MONITOR METHODS

Accelerator pedal position sensor (sub) output volt-

age is out of specified range.

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)

• Not applicable

Sensor (The sensor below is determined to be

normal)

• Not applicable

DTC SET CONDITIONS
Logic Flow Chart

Check Condition

• Ignition switch is "ON" position.

Judgement Criterion

• Accelerator pedal position sensor (sub) output

voltage is 0.2 volt or less for 0.3 second.

OBD-II DRIVE CYCLE PATTERN

None.

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

• Accelerator pedal position sensor failed.

• Open or shorted accelerator pedal position sen-

sor (sub) circuit, harness damage, or connector
damage.

• ECM failed.

AK604359

Good

Malfunction

End

Output voltage < 0.2V

Start

Yes

Continuous

failure for 0.3sec

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

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MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-646

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. Using scan tool MB991958, check data list item 12:
Accelerator Pedal Position Sensor (sub).

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) Set scan tool MB991958 to the data reading mode for item

12, Accelerator Pedal Position Sensor (sub).

• Output voltage is between 0.4 and 0.6 volt when foot is

released from accelerator pedal.

• Output voltage is 2.0 volts or higher when accelerator

pedal is fully depressed.

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

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 C-123 at accelerator
pedal position sensor for damage.
Q: Is the harness connector in good condition?

YES : Go to Step 3.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 11.

AK700568AB

MB991824

MB991827

MB991910

Data link
connector

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