Mitsubishi Galant 9G. Manual — part 861
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-886
STEP 7. 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 P2100 set?
YES : Replace the PCM. Then go to Step 8.
NO : 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
.
STEP 8. Using scan tool MB991958, read the diagnostic
trouble code (DTC).
(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 P2100 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
AK303804AB
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
AK303804AB
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-887
DTC P2101: Throttle Actuator Control Motor Magneto Malfunction
.
CIRCUIT OPERATION
• Controls the current that is applied from PCM
(terminals No. 141, No. 147) to the throttle actua-
tor control motor (terminals No. 1, No. 2)
.
TECHNICAL DESCRIPTION
• PCM check whether the throttle actuator control
motor magneto has failed.
.
DESCRIPTIONS OF MONITOR METHODS
Throttle actuator control motor intelligent power
device detects it is overheating.
.
MONITOR EXECUTION
Continuous
.
6
1 2 3 4 5
121 122 123 124 125 126 127
128 129 130 131 132 133
134 135 136 137 138 139 140
141 142 143 144 145 146
147 148 149 150 151 152 153
AK303902
GREEN-WHITE
GREEN-YELLO
W
B-06
147
1
THROTTLE ACTUATOR
CONTROL MOTOR
POWERTRAIN
CONTROL MODULE (PCM)
141
2
B-23
Throttle Actuator Control Motor Circuit
AK303817AB
CONNECTOR: B-06
B-06 (B)
THROTTLE
ACTUATOR
CONTROL
MOTOR
THROTTLE
POSITION
SENSOR
AK303059
CONNECTOR: B-23
PCM
AB
AIR CLEANER
B-23
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-888
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
Check Condition
• Battery positive voltage is higher than 8.3 volts.
Judgement Criteria
• The coil current of the throttle actuator control
motor is 8 ampere or more for 0.3 second.
.
OBD-II DRIVE CYCLE PATTERN
None.
.
TROUBLESHOOTING HINTS (The most
likely causes for this code to be set are:)
• Throttle actuator control motor failed.
• Shorted throttle actuator control motor circuit,
harness damage or connector damage.
• PCM failed.
DIAGNOSIS
Required Special Tools:
• MB991958: Scan tool (MUT-III Sub Assembly)
• MB991824: V.C.I.
• MB991827: USB Cable
• MB991910: Main Harness A
STEP 1. Check harness connector B-06 at throttle actuator
control motor 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
. Then go to Step 7.
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-889
STEP 2. Check the throttle actuator control motor.
(1) Disconnect the connector B-06.
(2) Measure the resistance between throttle actuator control
motor side connector terminal No. 1 and No. 2.
Standard value: 0.3
− 80 ohms [at 20°C (68°F)]
Q: Is the measured resistance between 0.3 and 80 ohms [at
20
°C (68°F)]?
YES : Go to Step 3.
NO : Replace the throttle body assembly. Then go to Step
STEP 3. Check harness connector B-23 at PCM for damage
Q: Is the harness connector in good condition?
YES : Go to Step 4.
NO : Repair or replace it. Refer to GROUP 00E, Harness
. Then go to Step 7.
AK303818
1
6 5 4 3 2
AB
CONNECTOR: B-06
B-06 (B)
HARNESS
CONNECTOR:
COMPONENT SIDE
6
1 2 3 4 5
AK202992
THROTTLE ACTUATOR
CONTROL MOTOR
CONNECTOR
AB
127 126 125 124 123 122 121
133 132 131 130 129 128
140 139 138 137 136 135 134
146 145 144 143 142 141
153 152 151 150 149 148 147
AK303058
HARNESS CONNECTOR:
COMPONENT SIDE
CONNECTOR: B-23
B-23
PCM
AB
AIR CLEANER
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