Low Fuel Lamp/Indicator: Testing and Inspection

FUEL LEVEL WARNING INSPECTION








1. INSPECT WARNING LIGHT
(a) Disconnect the connector from the sender gauge.
(b) Connect terminals 1 and 3 on the wire harness side connector.
(c) Turn the ignition switch ON, check that the warning light lights up.
If the warning light does not light up, test the bulb or inspect the wire harness.





2. INSPECT SWITCH
(a) Apply battery positive voltage between terminals 1 and 2 through a 3.4 W test bulb, check that the bulb lights up.

HINT: It will take a short time for the bulb to light up.

(b) Submerge the switch in fuel, check that the bulb goes out.
If operation is not as specified, replace the sender gauge.





3. INSPECT SENDER GAUGE OPERATION
(a) Connect a series of three 1.5 V dry cell batteries.
(b) Connect the positive (+) lead from the dry cell batteries to terminal 2 through a 3.4 W test bulb and the negative (-) lead to terminal 1.
(c) Check that the voltage rises between terminals 1 and 2 as the float is moved from the top to bottom position.








4. INSPECT SENDER GAUGE RESISTANCE
Measure the resistance between terminals 1 and 2 for each float position.
If resistance value is not as specified, replace the sender gauge.