Fuel Receiver Gauge Malfunction

METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: Fuel Receiver Gauge Malfunction
- Fuel Receiver Gauge Malfunction

DESCRIPTION

* The meter ECU (No. 3 meter circuit plate) 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 Ohms with the float at the full position, and 415 Ohms with the float at the empty position. The meter outputs battery voltage through two resistors of 820 Ohms that are mounted in parallel inside the meter ECU (No. 3 meter circuit plate). The meter ECU (No. 3 meter circuit plate) 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 battery voltage.

HINT
The fuel level warning light will come on when the fuel level is below 6.0 liters (6.3 US qts, 5.3 Imp.qts).

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (FUEL METER OPERATION)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter following menus: Body Electrical / Combination Meter / Active Test.

(e) Check the operation by referring to the table below.

Combination Meter





OK:

Fuel receiver gauge indication is normal.

NG -- REPLACE COMBINATION METER ASSEMBLY (NO. 3 METER CIRCUIT PLATE) Disassembly
OK -- Continue to next step.

2. READ VALUE USING TECHSTREAM (FUEL INPUT)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter following menus: Body Electrical / Combination Meter / Data List.

(e) Check the values by referring to the table below.

Combination Meter





Result:





B -- CHECK HARNESS AND CONNECTOR (NO. 3 METER CIRCUIT PLATE - FUEL SENDER GAUGE ASSEMBLY)

A -- REPLACE COMBINATION METER ASSEMBLY (NO. 3 METER CIRCUIT PLATE) Disassembly

3. CHECK HARNESS AND CONNECTOR (NO. 3 METER CIRCUIT PLATE - FUEL SENDER GAUGE ASSEMBLY)

(a) Disconnect the L27 and R11 connectors.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. INSPECT FUEL SENDER GAUGE ASSEMBLY

(a) Remove the fuel sender gauge assembly Removal.





(b) Check that the float moves smoothly between F and E.

(c) Check if the fuel sender gauge arm is deformed.

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

Standard Resistance:





Text in Illustration





NG -- REPLACE FUEL SENDER GAUGE ASSEMBLY Removal
OK -- Continue to next step.

5. REPLACE COMBINATION METER ASSEMBLY (METER CIRCUIT PLATE)

(a) Replace the combination meter assembly (meter circuit plate) with a new or a known good one Disassembly.

OK:

There is no deformation.

NG -- REPLACE NO. 4 METER CIRCUIT PLATE

OK -- END

6. REPLACE NO. 4 METER CIRCUIT PLATE

(a) Replace the combination meter assembly (No. 4 meter circuit plate) with a new or a known good one Disassembly.

OK:

The operation of the fuel receiver gauge returns to normal.

NG -- REPLACE COMBINATION METER ASSEMBLY (NO. 3 METER CIRCUIT PLATE) Disassembly

OK -- END