Mitsubishi Montero (2004+). Manual — part 238
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-439
STEP 8. Check for harness damage between throttle
position sensor connector B-05 (terminal No. 2) and PCM
connector D-135 (terminal No. 106).
Q: Is the harness wire in good condition?
YES : Go to Step 9.
NO : Repair it. Then go to Step 11.
AK201174
1
6 5 4 3 2
B-05(B)
CONNECTOR: B-05
HARNESS
CONNECTOR:
COMPONENT SIDE
AB
AK200947
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-440
STEP 9. Check for open circuit, short circuit to ground and
harness damage between throttle position sensor
connector B-05 (terminal No. 3) and PCM connector D-135
(terminal No. 113).
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 procedure is complete.
AK201174
1
6 5 4 3 2
B-05(B)
CONNECTOR: B-05
HARNESS
CONNECTOR:
COMPONENT SIDE
AB
AK200947
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
CONNECTOR: D-135
HARNESS CONNECTOR:
COMPONENT SIDE
AB
PCM
D-135(GR)
AK201174
1
6 5 4 3 2
B-05(B)
CONNECTOR: B-05
HARNESS
CONNECTOR:
COMPONENT SIDE
AB
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-441
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.
AK302970
AB
MB991911
MB991824
MB991827
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-442
DTC P0223: Throttle Position Sensor (Sub) Circuit High Input
.
CIRCUIT OPERATION
• A 5-volt power supply is applied on the throttle
position sensor (sub) power terminal (terminal
No. 2) from the PCM (terminal No. 106).
The ground terminal (terminal No. 4) is grounded
with PCM (terminal No. 105).
• When the throttle valve shaft is turned from the
idle position to the fully opened position, the
resistance between the throttle position sensor
(sub) output terminal (terminal No. 3) and ground
terminal (terminal No. 4) will increase according
to the rotation.
.
AK201162
RED
GREEN
BLA
C
K
B-05
5 V
106
2
THROTTLE
POSITION
SENSOR
(SUB)
POWERTRAIN CONTROL MODULE (PCM)
113
105
3
4
Throttle Position Sensor (Sub) Circuit
6
1 2 3 4 5
9192
939495
96979899
100
105
113114
115116117
118119120
106
107108109
110111112
101102103
104
D-135
(MU803805)
AK201173
THROTTLE
POSITION
SENSOR
AB
B-05(B)
CONNECTOR: B-05
AK201038AF
CONNECTOR: D-135
PCM
D-135(GR)
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