LOW FUEL INDICATOR LAMP LIGHTS WHEN FUEL TANK IS FULL

TM 9-2320-285-24-1

2-19.

INSTRUMENT PANEL TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

6. LOW FUEL INDICATOR LAMP LIGHTS WHEN FUEL TANK IS FULL

Step 1.

Check if FUEL gage indicates full.

a. If FUEL gage does not indicate full, troubleshoot fuel level sender (para 2-21, Malfunction 3).

b. If FUEL gage indicates full, go to step 2 below.

Step 2.

Check LOW FUEL INDICATOR light and low fuel warning circuit board electrical leads for short in

wiring.

a. If short in wiring is found, repair (para 2-26b(3)).

b. If short in wiring is not found, replace low fuel warning circuit board (para 2-26b(3)).

7. VOLTMETER INOPERATIVE

Step 1.

Check if key switch is turned to off position.

a. If key switch is off, turn key switch to on position.

b. If key switch is turned to on position, go to step 2 below.

Step 2.

Disconnect voltmeter electrical leads (para 2-26f).

Apply 12 Vdc power source to voltmeter terminals.

a. If voltmeter indicates 11-13 Vdc, notify direct support maintenance (wiring).

b. If voltmeter does not indicate 11-13 Vdc, replace voltmeter (para 2-26f).

8. AMMETER INOPERATIVE

Step 1.

Check if key switch is turned to off position.

a. If key switch is off, turn key switch to on position.

b. If key switch is turned to on position, go to step 2 below.

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