Mitsubishi 380. Manual — part 599
MULTIPORT FUEL INJECTION (MPI) DIAG
MULTIPORT FUEL INJECTION (MPI)
13A-488
STEP 4. Check harness connector B-21 at ENGINE-ECU for
damage.
Q: Is the harness connector in good condition?
YES : Go to Step 5.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 9.
16DB400A
COVER
ENGINE
CONTROL
UNIT
AIR
CLEANER
MULTIPORT FUEL INJECTION (MPI) DIAG
MULTIPORT FUEL INJECTION (MPI)
13A-489
STEP 5. Check for open circuit and harness damage
between accelerator pedal position sensor connector C-24
(terminal No. 4) and ENGINE-ECU connector B-21 (terminal
No. 13).
Q: Is the harness wire in good condition?
YES : Go to Step 6.
NO : Repair or replace it. Then go to Step 9.
ACCELERATOR
PEDAL
CONNECTOR: C-24
C-24 (B)
ACCELERATOR
PEDAL POSITION
SENSOR
HARNESS
CONNECTOR:
COMPONENT SIDE
16DB562A
16DB400A
COVER
ENGINE
CONTROL
UNIT
AIR
CLEANER
MULTIPORT FUEL INJECTION (MPI) DIAG
MULTIPORT FUEL INJECTION (MPI)
13A-490
STEP 6. Check for short circuit to 5-Volts and harness
damage between throttle position sensor connector C-24
(terminal No. 4) and ECU connector B-21 (terminal No. 13).
Q: Is the harness wire in good condition?
YES : Go to Step 7.
NO : Repair or replace it. Then go to Step 9.
ACCELERATOR
PEDAL
CONNECTOR: C-24
C-24 (B)
ACCELERATOR
PEDAL POSITION
SENSOR
HARNESS
CONNECTOR:
COMPONENT SIDE
16DB562A
16DB400A
COVER
ENGINE
CONTROL
UNIT
AIR
CLEANER
MULTIPORT FUEL INJECTION (MPI) DIAG
MULTIPORT FUEL INJECTION (MPI)
13A-491
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 : Then go to Step 8.
NO : The inspection is complete.
STEP 8. Using diagnostic tool , check data list item 11:
Accelerator Pedal Position Sensor (main).
CAUTION
To prevent damage to diagnostic tool , always turn the
ignition switch to the "LOCK"(OFF) position before con-
necting or disconnecting diagnostic tool .
(1) Connect diagnostic tool to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set diagnostic tool to the data reading mode for
item 11,
Accelerator Pedal Position Sensor (main).
• Output voltage is between 435 and 1035 mV when foot
is released from accelerator pedal.
• Output voltage is between 4000 - 4824 mV when accel-
erator 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 : Then go to Step 9.
ACCELERATOR
PEDAL
CONNECTOR: C-24
C-24 (B)
ACCELERATOR
PEDAL POSITION
SENSOR
HARNESS
CONNECTOR:
COMPONENT SIDE
16DB562A
00DB076A
MB991910
DATA LINK
CONNECTOR
MB991824
MB991827
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