Mitsubishi Galant. Manual — part 625

COMBINATION METERS ASSEMBLY AND VEHICLE SPEED SENSOR

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CHASSIS ELECTRICAL

54A-53

STEP 2. Check the fuel pump module signal circuit at the
fuel pump module connector D-14 by backprobing.
(1) Do not disconnect the fuel pump module connector D-14.
(2) Turn the ignition switch to "ON" position.
(3) Measure the voltage between terminal 2 and ground by

backprobing.

Q: Is the voltage approximately 5 volts or more?

YES : Go to Step 5.
NO : Go to Step 3.

STEP 3. Check the fuel pump module connector D-14 and
combination meter connector C-29 for damage.
Q: Are fuel pump module connector D-14 and combination

meter connector C-29 in good condition?
YES : Go to Step 4.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. The fuel gauge should

work normally.

AC003720AB

CONNECTOR: D-14

(HARNESS SIDE)

AC003089 AD

CONNECTOR: C-29

AC001749AC

FUEL PUMP
MODULE

CONNECTOR: D-14

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CHASSIS ELECTRICAL

COMBINATION METERS ASSEMBLY AND VEHICLE SPEED SENSOR

54A-54

STEP 4. Check the harness wires between fuel pump
module connector D-14 and combination meter connector
C-29.
NOTE: After checking intermediate connector C-71, check the
wire. If intermediate connector C-71 is damaged, repair or
replace it. Refer to GROUP 00E, Harness Connector
Inspection

P.00E-2

.

Q: Are the harness wires between fuel pump module

connector D-14 and combination meter connector C-29
in good condition?
YES : Repair or replace the combination meter (printed-

circuit board or fuel gauge assembly). The fuel gauge
should work normally.

NO : Repair them. The fuel gauge should work normally.

STEP 5. Check the fuel pump module ground circuit at the
fuel pump module connector D-14 by backprobing.
(1) Do not disconnect the fuel gauge unit connector D-14.
(2) Measure the resistance between terminal 1 and ground by

backprobing.

Q: Is the resistance less than 2 ohms?

YES : Go to Step 8.
NO : Go to Step 6.

AC003089 AD

CONNECTOR: C-29

AC001749AC

FUEL PUMP
MODULE

CONNECTOR: D-14

AC003415 AC

CONNECTOR: C-71

CONNECTOR
BLOCK (RH)

AC003721AB

CONNECTOR: D-14

(HARNESS SIDE)

COMBINATION METERS ASSEMBLY AND VEHICLE SPEED SENSOR

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CHASSIS ELECTRICAL

54A-55

STEP 6. Check the fuel pump module connector D-14 for
damage.
Q: Is fuel gauge unit connector D-14 in good condition?

YES : Go to Step 7.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection

P.00E-2

. The fuel gauge should

work normally.

STEP 7. Check the harness wire between fuel pump
module connector D-14 and ground.
Q: Is the harness wire between fuel pump module

connector D-14 and ground in good condition?
YES : There is no action to be taken.
NO : Repair them. The fuel gauge should work normally.

STEP 8. Check the fuel gauge unit.
(1) Remove the fuel pump module from the fuel tank. (Refer to

GROUP 13C, Fuel Tank

P.13C-6

.

(2) Check resistance value between terminals 2 and 1 is at

standard value when the fuel gauge unit float is at point "F"
(highest) and point "E" (lowest).

(3) Check that the resistance value changes smoothly when

the float moves slowly between point "F" (highest) and "E"
(lowest).

Q: Is the resistance 3

−−−−

5 ohms (at point "F") and 110

−−−−

112

ohms (at point "E")?
YES : Repair or replace the combination meter (printed-

circuit board or fuel gauge assembly). The fuel gauge
should work normally.

NO : Replace the fuel gauge unit. The fuel gauge should

work normally.

AC001749AC

FUEL PUMP
MODULE

CONNECTOR: D-14

AC001749AC

FUEL PUMP
MODULE

CONNECTOR: D-14

AC001282

POINT "E"

FLOAT

FUEL PUMP
MODULE

AC

POINT "F"

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CHASSIS ELECTRICAL

COMBINATION METERS ASSEMBLY AND VEHICLE SPEED SENSOR

54A-56

Inspection Procedure 4: Engine coolant temperature gauge does not work.

AC003968

Engine Coolant Temperature Gauge Circuit

AB