TM 9-2320-272-24-1
Table 2-3. Electrical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test 3. Test circuit wire of affected tank.
Step 1. Dieconnect lead 28 (left-hand tank, pin B) or lead 29 (right-hand tank, pin D) from fuel
selector switch.
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 pin B or pin D
on selector switch. Multimeter should indicate battery voltage.
a. If battery voltage is indicated, repair lead from switch to sending unit (para. 3-131).
b. If battery voltage is not indicated, go to test 4.
Test 4. Test fuel selector switch.
Step 1. Dieconnect lead 28 from pin A of fuel selector switch.
Step 2. Place battery switch to ON position.
Step 3. Set multimeter to 50-volt range.
Step 4. Connect multimeter negative lead to vehicle chassis ground and positive lead to
connector of disconnected lead 28. Multimeter should indicate battery voltage.
a. If battery voltage is indicated, replace fuel selector switch (para. 3-109).
b. If battery voltage is not indicated, repair lead 28 (para. 3-131).
END OF TESTING!
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