Mitsubishi Grandis. Manual — part 362

COMBINATION METER

CHASSIS ELECTRICAL

54A-67

DIAGNOSIS PROCEDURE

Step 1. Connector check: Fuel tank pump and
gauge unit assembly connector D-15.

Q: Is fuel tank pump and gauge unit assembly

connector C-02 in good condition?

YES :

Go to Step 2.

NO :

Repair the connector, and then go to Step
11.

Step 2. Check the fuel gauge circuit.

(1) Disconnect fuel tank pump and gauge unit

assembly connector D-15.

(2) Use special tool MB991219 to connect a test

lamp (12 V - 3.4 W) between the wiring harness

connector terminals 1 and 2.

(3) Turn the Ignition switch to "ON" position.
(4) Check if the test lamp illuminates.

OK: Illuminates

Q: Is the check result satisfactory?

YES :

Go to Step 8.

NO :

Go to Step 3.

Step 3. Resistance measurement at fuel tank
pump and gauge unit assembly connector D-15
to check the earth circuit to the fuel tank pump
and gauge unit assembly.

(1) Disconnect fuel tank pump and gauge unit

assembly connector D-15, and measure at the
wiring harness side.

(2) Turn the Ignition switch to "LOCK" (OFF)

position.

(3) Disconnect the negative battery terminal.

(4) Measure the resistance value between terminal 1

and earth.

OK: 2 ohms or less

Q: Is the check result normal?

YES :

Go to Step 5.

NO :

Go to Step 4.

AC310207

AG

Connector: D-15

D-15 (GR)

Harness side

AC310207

AG

Connector: D-15

D-15 (GR)

Harness side

AC302533

MB991219

AB

Test lamp
(12 V - 3.4 W)

AC310207

AG

Connector: D-15

D-15 (GR)

Harness side

AC310506

Connector D-15
(Harness side)

CM

COMBINATION METER

CHASSIS ELECTRICAL

54A-68

Step 4. Check the wiring harness between fuel
tank pump and gauge unit assembly connector
D-15 (terminal 1) and earth.

NOTE:

Also check intermediate connector D-28, C-16 for
loose, corroded, or damaged terminals, or terminals
pushed back in the connector. If intermediate
connector D-28, C-16 are damaged, repair or
replace the connector.

Q: Is the wiring harness between fuel tank pump and

gauge unit assembly connector D-15 (terminal 1)
and earth in good condition?

YES :

Go to Step 11.

NO :

Repair the harness, and then go to Step 11.

AC310207

AG

Connector: D-15

D-15 (GR)

Harness side

AC310615

AE

Connector: C-16 <LHD>

AC310631 AD

Connector: C-16 <RHD>

AC310633AE

Connector: D-28 <LHD>

AC310205

AE

Connector: D-28 <RHD>

COMBINATION METER

CHASSIS ELECTRICAL

54A-69

Step 5. Connector check: Combination meter
connector C-02 and fuel tank gauge unit
connector D-07.

Q: Is combination meter connector C-02 and fuel tank

gauge unit connector D-07 in good condition?

YES :

Go to Step 6.

NO :

Repair the connector, and then go to Step
10.

AC310613

AX

Connector: C-02 <LHD>

Harness side

40

20

28

8

34

14

37

17

38

39

1918

35

36

1615

31

11

33

13

32

12

30

10

29

9

23

3

27

7

26

6

24

4

25

5

21

1

22

2

AC310631AU

Connector: C-02 <RHD>

Harness side

40

20

28

8

34

14

37

17

38

39

1918

35

36

1615

31

11

33

13

32

12

30

10

29

9

23

3

27

7

26

6

24

4

25

5

21

1

22

2

AC310633AF

Connector: D-07 <LHD>

Harness side

AC310205

AF

Harness side

Connector: D-07 <RHD>

COMBINATION METER

CHASSIS ELECTRICAL

54A-70

Step 6. Check the wiring harness between
combination meter connector C-02 (terminal 31)
and fuel tank gauge unit connector D-07 (terminal
1).