METER / GAUGE SYSTEM Fuel Receiver Gauge Malfunction

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DESCRIPTION

• The meter CPU 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 15 Ω with the float at the full position, and 410 Ω with the float at the empty position. The meter outputs battery voltage through two 820 Ω resistors that are mounted in parallel inside the meter CPU. The meter CPU 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.

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INSPECTION PROCEDURE

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PROCEDURE

1. Click here

   CHECK CAN COMMUNICATION SYSTEM

   
   

   1. Check if a CAN communication DTC is output (Click here).

      Result
      Result Proceed to CAN communication DTC is not output. A CAN communication DTC is output. B

   
   
   • AClick here
   • BClick here
2. Click here

   PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FUEL METER OPERATION)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the tester on.

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

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

      Table 1. Combination Meter

      Tester Display	Test Part	Control Range	Diagnostic Note
      Fuel Meter Operation	Fuel receiver gauge	OFF, Empty, 1/2, Full	Confirm that the vehicle is stopped with the engine idling

      OK
      Fuel receiver gauge indication is normal.

   
   
   • OKClick here
   • NGClick here
3. Click here

   READ VALUE USING INTELLIGENT TESTER (FUEL INPUT)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the tester on.

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

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

      Table 2. Combination Meter

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Fuel Input	Fuel input signal/Min.: 0, Max.: 127.5	The current fuel level displayed	Unit: Liter

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

   
   
   • OKClick here
   • NGClick here
4. Click here

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

   
   

   1. Disconnect the G19 and N19 connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition G19-16 (L) - N19-1 (FS)*1 Always Below 1 Ω G19-16 (L) - N19-1 (E)*2 Always 10 kΩ or higher G19-16 (L) - Body ground Always 10 kΩ or higher G19-15 (FE) - N19-2 (FE) Always Below 1 Ω G19-15 (FE) - Body ground Always 10 kΩ or higher

      
      

      • *1: for LHD

      • *2: for RHD

   
   
   • OKClick here
   • NGClick here
5. Click here

   INSPECT FUEL SENDER GAUGE ASSEMBLY

   
   
   1. 

      Remove the fuel sender gauge assembly (Click herefor 2GR-FE,Click herefor 2AZ-FE).

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

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

   4. 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) 13.5 to 16.5 Ω 1 - 2 Float level is between F (upper) and E (lower) 13.5 to 414.5 Ω (Gradually changes) 1 - 2 Float level is E (lower) 405.5 to 414.5 Ω

      Result
      Result Proceed to OK A NG (for 2GR-FE) B NG (for 2AZ-FE) C

   
   
   • AClick here
   • BClick here
   • CClick here
6. Click here

   CHECK FUEL SUCTION TUBE ASSEMBLY WITH PUMP AND GAUGE

   
   

   1. Visually check the fuel suction tube assembly with pump and gauge connector for deformation.

      OK
      There is no deformation.

      Result
      Result Proceed to OK A NG (for 2GR-FE) B NG (for 2AZ-FE) C

   
   
   • AClick here
   • BClick here
   • CClick here
7. Click here

   GO TO CAN COMMUNICATION SYSTEMClick here

8. Click here

   REPLACE COMBINATION METER ASSEMBLYClick here

9. Click here

   REPAIR OR REPLACE HARNESS OR CONNECTOR

10. Click here

    REPLACE FUEL SENDER GAUGE ASSEMBLY (for 2GR-FE)Click here

11. Click here

    REPLACE FUEL SENDER GAUGE ASSEMBLY (for 2AZ-FE)Click here

12. Click here

    REPLACE FUEL SUCTION TUBE ASSEMBLY WITH PUMP AND GAUGE (for 2GR-FE)Click here

13. Click here

    REPLACE FUEL SUCTION TUBE ASSEMBLY WITH PUMP AND GAUGE (for 2AZ-FE)Click here