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,
register the ID code. Refer to GROUP 42B, Diagnosis
− ID Code Registration Judgment Table <Vehicles
or GROUP 42C, Diagnosis
− ID
Codes Registration Judgment Table <Vehicles with
WCM>
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
TSB Revision
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
6
1 2 3 4 5
AF
5 V
78
4
YELLO
W
-RED
YELLOE-BLUE
77
79
6
5
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
AB
Accelerator pedal
position sensor
Connector: C-123
C-123 (B)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
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
No
No
Output voltage < 0.2V
Start
Yes
Yes
Continuous
failure for 0.3sec
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
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
.
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
. Then go to Step 11.
AK700568AB
MB991824
MB991827
MB991910
Data link
connector
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