TROUBLESHOOTING AND ELECTRICAL SYSTEM
Test Procedures
Page 11-40 2001 Pioneer 900 Gasoline Vehicle Maintenance and Service Manual
11
7. If the readings are correct according to the position of the float, but give an incorrect reading on the
fuel/hour gauge, test the fuel/hour gauge. See Test Procedure 26 – Fuel Gauge on page 11-40.
TEST PROCEDURE 26 – FUEL GAUGE
Read DANGER and WARNING on page 11-1.
1. Place the Forward/Reverse handle in NEUTRAL, chock the wheels and disconnect the battery, nega-
tive cable first.
2. Remove the center dash assembly to gain access to the back of the fuel/hour gauge. See Key Switch
Removal, Section 12, Page 12-15.
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/hour 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/hour gauge with the blue wire. Place the black (–) probe on the (3) terminal of the fuel/hour gauge
with the black wire (Figure 11-45, Page 11-41).
7. Reconnect the battery cables, positive terminal first, and tighten to 20 ft-lb (27.1 N·m).
8. Turn the key switch ON. The voltage reading should be the same as the battery voltage reading
recorded earlier. If not, check the continuity of the blue and black wires (Figure 11-45, Page 11-41).
9. The orange wire should remain disconnected for this step. With the black probe still on the (3) terminal
of the fuel/hour gauge, place the red (+) probe of the multimeter on the (1) terminal of the fuel/hour
gauge. The voltage reading should be the same as the full battery voltage reading obtained in step 5. If
the reading is incorrect, replace fuel/hour gauge (Figure 11-46, Page 11-41).
Figure 11-44 Test Fuel Level Sending Unit
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
