METER / GAUGE SYSTEM Fuel Receiver Gauge Malfunction

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 7.5 Ω with the float at the full position, and 185 Ω*1 or 225 Ω*2 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.

• *1: for 2WD

• *2: for AWD

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. 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

   
   

   B

   GO TO CAN COMMUNICATION SYSTEM Click here

   A

2. PERFORM ACTIVE TEST USING GTS (FUEL METER OPERATION)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

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

   5. 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	Confirm that the vehicle is stopped with the engine idling

      OK
      Fuel receiver gauge indication is normal.

   
   

   NG

   REPLACE COMBINATION METER ASSEMBLY Click here

   OK

3. READ VALUE USING GTS (FUEL INPUT)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

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

   5. 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	Current fuel level displayed	Unit: Liter

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

   
   

   NG

   REPLACE COMBINATION METER ASSEMBLY Click here

   OK

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

   
   

   1. Disconnect the E2 and L12 connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition E2-9 (FR) - L12-2 (S) Always Below 1 Ω E2-9 (FR) - Body ground Always 10 kΩ or higher E2-23 (FE) - M12-2 (E) Always Below 1 Ω E2-23 (FE) - Body ground Always 10 kΩ or higher L12-3 (FE)- M12-1 (FS) Always Below 1 Ω M12-1 (FS) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

5. INSPECT FUEL SENDER GAUGE ASSEMBLY

   
   
   1. 

      Text in Illustration

      *1	Front view of wire harness connector (to Fuel Sender Gauge Assembly (Main))
      *2	Front view of wire harness connector (to Fuel Sender Gauge Assembly (Sub))

      Remove the fuel sender gauge assembly Click here.

   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 (Main)
      Tester Connection Condition Specified Condition 1 - 2 Float level is F (upper) 6.5 to 8.5 Ω 1 - 2 Float level is between F (upper) and E (lower) 6.5 to 187.2 Ω (Gradually changes) 1 - 2 Float level is E (lower) 183.2 to 187.2 Ω

      Standard Resistance (Sub)
      Tester Connection Condition Specified Condition 1 - 2 Float level is F (upper) 6.5 to 8.5 Ω 1 - 2 Float level is between F (upper) and E (lower) 6.5 to 227.3 Ω (Gradually changes) 1 - 2 Float level is E (lower) 222.3 to 227.3 Ω

   
   

   NG

   REPLACE FUEL SENDER GAUGE ASSEMBLY Click here

   OK

6. CHECK FUEL SENDER GAUGE ASSEMBLY

   
   

   1. Visually check for deformation on the fuel sender gauge assembly connector.

      OK
      There is no deformation.

   
   

   NG

   REPLACE FUEL SENDER GAUGE ASSEMBLY Click here

   OK

   REPLACE COMBINATION METER ASSEMBLY Click here