TROUBLESHOOTING
Test Procedures
Page 11-36 2000 FE290 Gasoline Vehicle Maintenance and Service Supplement
11
TEST PROCEDURE 26 – FUEL GAUGE
1. Place the neutral lockout cam in the SERVICE position, put the Forward/Reverse handle in NEUTRAL,
chock the wheels and disconnect the battery, negative cable first.
2. Remove the center dash assembly to gain access to the back of the fuel gauge. See Key Switch
Removal, Section 12 – Electrical Components, Page 12-13.
3. Place a sheet of insulating material between the front frame and the electrical connections on the rear
of the center dash assembly to prevent contact between the two.
4. Disconnect the orange wire from the fuel gauge.
5. Set a multimeter to 20 volts DC and place the red (+) probe of the multimeter on the positive post of the
battery. Place the black (–) probe on the negative post of the battery. Record the voltage reading.
6. Set a multimeter to 20 volts DC and place the red (+) probe of the multimeter on the (2) terminal of the
fuel gauge with the blue wire. Place the black (–) probe on the (3) terminal of the fuel gauge with the
black wire (Figure 11-44, Page 11-36).
Figure 11-43 Test Fuel Level Sending Unit
Figure 11-44 Test Fuel Gauge
Figure 11-45 Test Fuel Gauge Voltage
TANK
CONNECTION
FRAME
CONNECTION
BLACK
WIRE
SENDING UNIT
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
Ω
Ω
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
Ω
Ω
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200mA
MAX
1000 ---
750V
FUSED
1
3
2
REAR VIEW OF
FUEL/HOUR GAUGE
18 GAUGE
BLUE WIRE
TO NO. 1 ON
KEY SWITCH
18 GAUGE BLACK
WIRE TO GROUND
Remove
18 gauge
orange wire.
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
Ω
Ω
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200mA
MAX
1000 ---
750V
FUSED
1
3
2
REAR VIEW OF
FUEL/HOUR GAUGE
18 GAUGE
ORANGE
WIRE