Mitsubishi MOTORS Lancer 2004, Workshop Manual

Page: 339 / 638

COMBINATION METER ASSEMBLY
CHASSIS ELECTRICAL 54A-61
NOTE: For tachometer check, use an external
high quality inductive tachometer.
2. Compare the readings of the vehicle tachometer
and the external tachometer at every engine
speed, and check if the variations are within the
standard values.
Standard values:
FUEL TANK GAUGE UNIT CHECK
M1543001200461
Remove the fuel tank gauge unit. (Refer to GROUP
13C, Fuel Tank
P.13C-4 .)
FUEL TANK GAUGE UNIT RESISTANCE
1. Check that resistance value between the fuel
gauge terminal and earth terminal is at the
standard value when the fuel tank gauge unit float
is between position "F" (highest) and position "E"
(lowest).
Standard values:
2. Check that resistance value changes smoothly
when the float moves slowly between position "F"
(highest) and position "E" (lowest).
3. If all checks are correct, go to fuel tank gauge unit
float height check. If any check is not correct,
replace the fuel tank gauge unit.
FUEL TANK GAUGE UNIT FLOAT HEIGHT
1. Move the float and measure height A at position
"F" (highest) and B at position "E" (lowest) with
the float arm touching stopper.
Standard values:
2. If all checks are correct, go to fuel tank gauge unit
float height check. If any check is not correct,
replace the fuel tank gauge unit.
ENGINE COOLANT TEMPERATURE
GAUGE UNIT CHECK
M1543001500398
1. Drain the engine coolant. (Refer to GROUP 14,
On-vehicle Service P.14-22 .)
2. Remove the engine coolant temperature gauge
unit.
Engine speed (r/min) Indication allowance of
tachometer r/min
700
±
120
2, 000
−
175 + 225
3, 000
−
175 + 300
4, 000
−
225 + 375
5, 000
−
225 + 425
6, 000
−
225 + 475
7, 000
−
200 + 500
8, 000
−
100 + 500
AC005208
1 2 3
AE
Fuel tank gauge unit
Earth
Position F
Position E
Float Position Resistance of Gauge
Position F 3
±
1
Ω
Position E 110
±
1
Ω
Float Position Float Centre Hight
Position F (A) 24.1
±
2.0 mm
Position E (B) 151.6
±
2.0 mm
AC005209AD
Position F
Position E
Stopper
A
B