Mitsubishi 380. Manual - part 632
MULTIPORT FUEL INJECTION (MPI) DIAGNOSIS
MULTIPORT FUEL INJECTION (MPI) <3.8L ENGINE>
13A-620
STEP 8. Measure the power supply voltage at fuel pump
relay 2 harness side connector C-208.
CAUTION
Because it is difficult to distinguish the top and bottom of
the fuel pump relay connector at the wiring harness,
inspect it by using the triangle mark on the junction block
as a reference.
(1) Disconnect the connector C-208 and measure at the
harness side.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 3 and ground.
• Voltage should be battery positive voltage.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is battery positive voltage (approximately 12 volts)
present?
YES : Go to Step 9.
NO : Check harness connector C-215 at intermediate
connector for damage, and repair or replace as
required. Refer to, GROUP 00E, Harness Connector
Inspection
. If intermediate connector is in
good condition, repair harness wire between ignition
switch connector C-308 (terminal No. 2) and fuel
pump relay 2 connector C-208 (terminal No. 3)
because of open circuit. Then confirm that the
malfunction symptom is eliminated.
STEP 9. Check connector D-18 at fuel pump for damage.
Q: Is the connector in good condition?
YES : Go to Step 10.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then confirm that the
malfunction symptom is eliminated.
3
4
1
2
3
4
1
2
3
4
1
2
03DB167A
JUNCTION BLOCK
C-208
HARNESS CONNECTOR:
COMPONENT SIDE
CONNECTOR: C-208
1 3
4
2
AK203274
C-208 HARNESS
CONNECTOR:
COMPONENT SIDE
AB
JUNCTION
BLOCK
TRIANGLE
MARK
1
2
3
4
5
03DB168A
SERVICE
HOLE
FUEL PUMP MODULE
(INCORPORATING FUEL
LEVEL SENSOR (MAIN)
CONNECTOR: D-18
D-18 (GR)
HARNESS
CONNECTOR:
COMPONENT SIDE