Mitsubishi Grandis. Manual — part 771

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-335

STEP 14. Check harness between C-214 (terminal
No. 4) fuel pump relay (2) connector and D-15
(terminal No. 5) fuel pump connector.

NOTE: Before checking harness, check intermediate
connectors D-210 and D-28, and repair if necessary.

• Check output line for open/short circuit and

damage.

Q: Is the check result normal?

YES :

Replace engine-ECU <M/T> or

engine-A/T-ECU <A/T>.

NO :

Repair.

STEP 15. Perform resistance measurement at
D-15 fuel pump connector.

• Disconnect connector, and measure at harness

side.

• Resistance between terminal No. 4 and earth.

OK: 2

Ω or less

Q: Is the check result normal?

YES :

Go to Step 16 .

NO :

Check intermediate connector D-28, and

repair if necessary. If intermediate
connector is normal, check and repair
harness between D-15 (terminal No. 4) fuel
pump connector and body earth.

• Check earthing line for open circuit

and damage.

STEP 16. Connector check: C-307 ignition switch
connector

Q: Is the check result normal?

AK305634

2 1

3

4

AB

Connector: C-214

C-214

Harness side
connector

C-214

Relay box’s
triangle marks

<L.H. drive vehicles>

<R.H. drive vehicles>

AK301003

1

2

3

4

5

AC

Connector: D-15

D-15 (GR)

Harness side
connector

AK301003

1

2

3

4

5

AC

Connector: D-15

D-15 (GR)

Harness side
connector

1

2

3

4

5

6

AK305629

C-307

C-307

Connector: C-307

Harness side connector

<R.H.drive vehicle>

<L.H.drive vehicle>

AB

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-336

YES :

Go to Step 17 .

NO :

Repair or replace.

STEP 17. Check harness between C-307 (terminal
No. 2) ignition switch connector and C-216
(terminal No. 3) fuel pump relay (1) connector.

NOTE: Before checking harness, check intermediate
connector C-202, and repair if necessary.

• Check power supply line for damage.

Q: Is the check result normal?

YES :

Go to Step 18 .

NO :

Repair.

1

2

3

4

5

6

AK305629

C-307

C-307

Connector: C-307

Harness side connector

<R.H.drive vehicle>

<L.H.drive vehicle>

AB

AK305635

2 1

3

4

AB

Connector: C-216

C-216

Harness side
connector

C-216

Relay box’s
triangle marks

<L.H. drive vehicles>

<R.H. drive vehicles>

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-337

STEP 18. Check harness between battery and
C-216 (terminal No. 4) fuel pump relay (1)
connector.

NOTE: Before checking harness, check intermediate
connector C-203, C-125, and repair if necessary.

• Check power supply line for damage.

Q: Is the check result normal?

YES :

Go to Step 19 .

NO :

Repair.

STEP 19. Check harness between C-216 (terminal
No. 1) fuel pump relay (1) connector and C-214
(terminal No. 1) fuel pump relay (2) connector.

• Check power supply line for damage.

Q: Is the check result normal?

YES :

Go to Step 20 .

NO :

Repair.

AK305635

2 1

3

4

AB

Connector: C-216

C-216

Harness side
connector

C-216

Relay box’s
triangle marks

<L.H. drive vehicles>

<R.H. drive vehicles>

AK305633

2 1

3

4

AB

Connectors: C-214, C-216

C-214

Harness side
connector

C-216

C-214

Relay box’s
triangle marks

C-216

<L.H. drive vehicles>

<R.H. drive vehicles>

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MPI)

13A-338

STEP 20. Check harness between C-307 (terminal
No. 2) ignition switch connector and C-214
(terminal No. 3) fuel pump relay (2) connector.

• Check power supply line for damage.

Q: Is the check result normal?

YES :

Go to Step 21 .

NO :

Repair.

STEP 21. Check harness between C-214 (terminal
No. 4) fuel pump relay (2) connector and D-15
(terminal No. 5) fuel pump connector.

NOTE: Before checking harness, check intermediate
connectors D-28 and C-210, and repair if necessary.

• Check power supply line for damage.

Q: Is the check result normal?

YES :

Go to Step 22 .

NO :

Repair.

1

2

3

4

5

6

AK305629

C-307

C-307

Connector: C-307

Harness side connector

<R.H.drive vehicle>

<L.H.drive vehicle>

AB

AK305634

2 1

3

4

AB

Connector: C-214

C-214

Harness side
connector

C-214

Relay box’s
triangle marks

<L.H. drive vehicles>

<R.H. drive vehicles>

AK305634

2 1

3

4

AB

Connector: C-214

C-214

Harness side
connector

C-214

Relay box’s
triangle marks

<L.H. drive vehicles>

<R.H. drive vehicles>

AK301003

1

2

3

4

5

AC

Connector: D-15

D-15 (GR)

Harness side
connector