METER / GAUGE SYSTEM > Fuel Receiver Gauge Malfunction

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DESCRIPTION

  1. The meter ECU uses the fuel sender gauge assembly to determine the level of the fuel in the fuel tank. The resistance of the fuel sender gauge will vary between approximately 12 Ω with the float at the full position, and 415 Ω with the float at the empty position. The meter outputs auxiliary battery voltage through two resistors of 820 Ω that are mounted in parallel inside the meter ECU. The meter ECU measures the voltage between the variable resistor in the fuel sender gauge and the two resistors mounted in parallel in the meter. Voltage measured at this point will vary as the float of the fuel sender gauge is moved. The highest voltage observed should be approximately half of the auxiliary battery voltage.

HINT:
The fuel level warning light will come on when the fuel level is below 6.8 liters (7.2 US qts, 6.0 Imp.qts).


WIRING DIAGRAM


E156126E34


INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FUEL METER OPERATION)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter following menus: Body / Combination Meter / Active Test.

  1. Check the operation by referring to the table below.

    Combination Meter 
    Tester Display
    		 Test Part
    		Control Range
    		Diagnostic Note
    Fuel Meter Operation
    		Fuel receiver gauge
    		Empty, 1/2, Full
    		-

    OK:
    Fuel receiver gauge indication is normal.



NG
REPLACE COMBINATION METER ASSEMBLY (Click here)
OK


2.READ VALUE USING INTELLIGENT TESTER (FUEL INPUT)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter following menus: Body / Combination Meter / Data List.

  1. Check the values by referring to the table below.

    Combination Meter 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Fuel Input
    		Fuel input signal/Min.: 0, Max.: 127.5
    		Fuel indicates F: 39.6
    		Unit: Liter
    Fuel indicates 3/4: 31.0
    Fuel indicates 1/2: 22.8
    Fuel indicates 1/4: 14.3
    Fuel indicates E: 5.1

    OK:
    Fuel level signal displayed on the intelligent tester is almost the same as fuel receiver gauge indication.



NG
REPLACE COMBINATION METER ASSEMBLY (Click here)
OK


3.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FUEL SENDER GAUGE ASSEMBLY)

  1. Disconnect the H19 and P9 connectors.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H19-27 (L) - P9-2 (FS)
    		Always
    		Below 1 Ω
    H19-30 (FE) - P9-3 (FE)
    		Always
    		Below 1 Ω
    H19-27 (L) - Body ground
    		Always
    		10 kΩ or higher
    H19-30 (FE) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.INSPECT FUEL SENDER GAUGE ASSEMBLY


    E184968E03

  1. Remove the fuel sender gauge assembly (Click here).

  1. Check that the float moves smoothly between F and E.

  1. Check if the fuel sender gauge arm is deformed.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1 - 2
    		Float level is F (upper)
    		12 to 18 Ω
    1 - 2
    		Float level is between F (upper) and E (lower)
    		12 to 415 Ω (Gradually changes)
    1 - 2
    		Float level is E (lower)
    		405 to 415 Ω

    Text in Illustration 
    *a
    		Front view of wire harness connector
    (to Fuel Sender Gauge Assembly)



NG
REPLACE FUEL SENDER GAUGE ASSEMBLY (Click here)
OK

REPLACE COMBINATION METER ASSEMBLY (Click here)