TM 9-2320-272-24-1
Table 2-3. Electrical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
30. FUEL GAUGE INOPERATIVE
WARNING
Do not perform testing near fuel tank with fill cap or sending unit
removed. Fuel may ignite, causing injury to personnel.
NOTE
If STE/ICE is available, perform NG31- Gauge Test (para. 2-24).
Test 1.
Test fuel level gauge voltage (malfunction 28).
Test 2.
Test fuel level sending unit.
Step
1. Disconnect lead 28 (left-hand tank) or lead 29 (right-hand tank) from fuel level sending
unit.
Step
2. Place battery switch to ON position.
Step
3. Place fuel selector switch (if equipped) to affected fuel tank.
Step
4. Set multimeter on 50-volt range.
Step
5. Connect multimeter negative lead to chassis ground and positive lead to disconnected
lead. Multimeter should indicate battery voltage.
If battery voltage is indicated, replace fuel level sending unit (para. 3-92).
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