Club Car Precedent 2014, Руководство по техническому обслуживанию и ремонту

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19
Test Procedures
TROUBLESHOOTING AND ELECTRICAL
SYSTEM (GASOLINE VEHICLE)
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2m
20
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2k
200
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200 200
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20k
200k
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WAVETEK 5XL
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COM 200nA
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2691
Figure 19-31 Fuel Level Sending Unit Test
4. The following resistance readings (in ohms) should be obtained depending on the position of the float inside
the fuel tank. The resistance reading will vary according to the exact position of the float. The chart below may
be used as a guideline to determine if the fuel level sending unit is operating correctly. Make sure the float
is at the surface of the fuel in the tank.
FLOAT POSITION RESISTANCE READING FUEL GAUGE READINGS
Lower position (tank empty) 250 ±10 ohms Empty
Center position (tank half full) 120 ±20 ohms Half full
Upper position (tank full) 33.5 ±6 ohms Full
5. If the readings are within the specifications listed above, the fuel level sending unit is working properly. If the
readings are incorrect, the fuel level sending unit has failed and the fuel tank must be replaced.
See Fuel
Tank Removal on page 22-17.
6. If the readings are correct and the fuel gauge does not function correctly, check the continuity of the orange wire
from the fuel level sending unit to the fuel gauge. Leave the battery disconnected while checking continuity. Also
check the continuity of the blue wire from the fuel gauge to the key switch, and the black ground wires at the fuel
level sending unit and at the fuel gauge.
See Fuel Gauge Removal on page 20-22.
7. If the readings are correct according to the position of the float, but give an incorrect reading on the fuel gauge,
test the fuel gauge.
See Test Procedure 24 – Fuel Gauge on page 19-32.
TEST PROCEDURE 24 – Fuel Gauge
See General Warnings on page 1-2.
NOTE: Keep the battery connected while performing this test procedure.
1. Remove the dash assembly to gain access to the back of the fuel gauge. See Key Switch Removal on page
20-14.
2. Disconnect the orange wire from the fuel gauge.
3. 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.
4. Set a multimeter to 20 volts DC and place the red (+) probe of the multimeter on the (G) terminal of the fuel gauge
with the blue wire. Place the black (–) probe on the (S) terminal of the fuel gauge with the black wire
(Figure
19-32, Page 19-33) .
5. Connect battery and spark plug wire(s). See Connecting the Battery – Gasoline Vehicles on page 1-4.
Page 19-32 2014 Precedent ® Golf Car Maintenance and Service Manual