Mitsubishi Galant (2004+). Manual - part 922

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-505

STEP 9. Check for open circuit, short circuit to ground and 
harness damage between throttle position sensor 
connector B-06 (terminal No. 6) and PCM connector B-22 
(terminal No. 98).

Q: Is the harness wire in good condition?

YES : Go to Step 10.
NO :  Repair it. Then go to Step 11.

STEP 10. Replace the throttle body assembly.

(1) Replace the throttle body assembly.
(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 P0222 set?

YES : Replace the PCM. Then go to Step 11.
NO :  The inspection is complete.

AK303818

1

6 5 4 3 2

AB

CONNECTOR: B-06

B-06 (B)

HARNESS 
CONNECTOR:
COMPONENT SIDE

AK303016

104

96

94

95

93 92 91

99 98 97

103 102 101 100

108 107 106 105

113 112 111 110 109

CONNECTOR: B-22

B-22 (B)

PCM

AB

HARNESS CONNECTOR: 
COMPONENT SIDE

AIR CLEANER

AK303818

1

6 5 4 3 2

AB

CONNECTOR: B-06

B-06 (B)

HARNESS 
CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-506

STEP 11. Using scan tool MB991958, read the diagnostic 
trouble code (DTC).

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) After the DTC has been deleted, read the DTC again.
(4) Turn the ignition switch to the "LOCK"(OFF) position.
Q: Is DTC P0222 set?

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

AK303804AB

MB991910

DATA LINK
CONNECTOR

MB991824

MB991827

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-507

DTC P0223: Throttle Position Sensor (sub) Circuit High Input

CAUTION

If DTC P0223 has been set, TCL related DTC 
U1120 is also set. After P0223 has been diag-
nosed, don't forget to erase DTC U1120.

.

6

1 2 3 4 5

100

99

92

91

93 94 95

96 97 98

101 102 103 104

105 106 107 108

109 110 111 112 113

AK303853

YELLO

W

-RED

WHITE-RED

BLA

CK-WHITE

HALL IC

B-06

5 V

94

5

THROTTLE
POSITION
SENSOR 
(SUB)

POWERTRAIN CONTROL MODULE (PCM)

98

95

6

3

Throttle Position Sensor (sub) Circuit

B-22

AK303817AB

CONNECTOR: B-06

B-06 (B)

THROTTLE
ACTUATOR
CONTROL
MOTOR

THROTTLE 
POSITION 
SENSOR

AK303043

CONNECTOR: B-22

B-22 (B)

PCM

AB

AIR CLEANER

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>

13A-508

CIRCUIT OPERATION

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

position sensor (sub) power terminal (terminal 
No. 5) from the PCM (terminal No. 94).
The ground terminal (terminal No. 3) is grounded 
with PCM (terminal No. 95).

.

TECHNICAL DESCRIPTION

• The throttle position sensor (sub) outputs voltage 

which corresponds to the throttle valve opening 
angle.

• The PCM checks whether the voltage is within a 

specified range.

.

DESCRIPTIONS OF MONITOR METHODS
Throttle position sensor (sub) output voltage 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

.