Mitsubishi Eclipse. Manual — part 262

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-541

STEP 2. Check the output circuit voltage at intermediate
connector D-16.
(1) Remove the rear seat cushion. (Refer to GROUP 52A, Rear

Seat

P.52A-19

.)

(2) Remove the protector.
(3) Disconnect intermediate connector D-16.
(4) Use special tools (MB991658 and MB991709) to connect

terminals 5, 6 and 8 between connectors of the
intermediate connector respectively.

(5) Turn the ignition switch to the "ON" position.
(6) Remove the fuel cap.
(7) Measure the voltage between terminal 5 and ground.

• Voltage should be between 2.0 and 3.0 volts.

(8) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the voltage normal?

YES : Remove the special tools and connect intermediate

connector D-16. Then go to Step 3.

NO : Go to Step 6.

STEP 3. Check the output circuit voltage at ECM connector
C-57 <M/T> or PCM connector C-57 <A/T> by backprobing.
(1) Do not disconnect the ECM connector C-56 <M/T> or PCM

connector C-57 <A/T>.

(2) Turn the ignition switch to the "ON" position.
(3) Remove the fuel cap.
(4) Measure the voltage between terminal 61 <M/T> or terminal

92 <A/T> and ground by backprobing.

• Voltage should be between 2.0 and 3.0 volts.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the voltage normal?

YES : Go to Step 21.
NO : Go to Step 4.

AC002079 AB

MB991709

MB991658

AC002551AC

<M/T> C-56

<A/T> C-57

HARNESS SIDE
CONNECTOR

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-542

STEP 4. Check connectors C-28, C-90, D-16 at intermediate
connector and C-56 at ECM <M/T> or C-57 at PCM <A/T>
for damage.
Q: Are the connectors in good condition?

YES : Go to Step 5.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 22.

AC001741 AJ

CONNECTOR: C-28

AC001991

CONNECTOR: C-90

CONNECTOR
BLOCK (LH)

AI

AC001787AD

CONNECTOR: D-16

AC001689

CONNECTOR: C-56 <M/T>, C-57 <A/T>

ECM <M/T>
OR
PCM <A/T>

C-56 <M/T>,
C-57 <A/T>

AM

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-543

STEP 5. Check the harness wire between ECM connector
C-56 terminal 61 <M/T> or PCM connector C-57 terminal 92
<A/T> and intermediate connector D-16 terminal 5 for
damage.
Q: Is the harness wire in good condition?

YES : Go to Step 22.
NO : Repair it. Then go to 22.

STEP 6. Check the 5-volt supply circuit voltage at
intermediate connector D-16.
(1) Use special tools (MB991658 and MB991709) to connect

terminals 5, 6 and 8 between connectors of the
intermediate connector D-16 respectively.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 8 and ground.

• Voltage should be between 4.9 and 5.1 volts.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the voltage normal?

YES : Go to Step 11.
NO : Remove the special tools and connect intermediate

connector D-16. Then go to Step 7.

AC001689

CONNECTOR: C-56 <M/T>, C-57 <A/T>

ECM <M/T>
OR
PCM <A/T>

C-56 <M/T>,
C-57 <A/T>

AM

AC001787AD

CONNECTOR: D-16

AC002080

MB991709

MB991658

AB

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-544

STEP 7. Check the 5-volt supply circuit voltage at ECM
connector C-60 <M/T> or PCM connector C-54 <A/T> by
backprobing.
(1) Do not disconnect ECM connector C-60 <M/T> or PCM

connector C-54 <A/T>.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 81 <M/T> or terminal

46 <A/T> and ground by backprobing.

• Voltage should be between 4.9 and 5.1 volts.

(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the voltage normal?

YES : Go to Step 9.
NO : Go to Step 8.

STEP 8. Check connector C-60 at ECM <M/T> or C-54 at
PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 21.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. Then go to Step 22.

AC002552

HARNESS SIDE
CONNECTOR

<M/T> C-60

<A/T> C-54

AC

AC001689

CONNECTOR: C-60 <M/T>, C-54 <A/T>

ECM <M/T>
OR
PCM <A/T>

AL

C-54
<A/T>

C-60
<M/T>