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.
Tech Tips
The fuel level warning light will come on when the fuel level is below 11.0 liters (2.9 gallons).
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
CHECK CAN COMMUNICATION SYSTEM
Check if CAN communication DTC is output Click here.
| 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 |
|
CHECK MULTIPLEX COMMUNICATION SYSTEM
Check if Multiplex communication DTC is output Click here.
| Result | Proceed to |
|---|---|
| Multiplex communication DTC is not output | A |
| Multiplex communication DTC is output | B |
| B |
|
GO TO MULTIPLEX COMMUNICATION SYSTEM Click here |
| A |
|
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FUEL METER OPERATION)
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter following menus: Body / Combination Meter / Active Test.
Check the operation by referring to the table below.
| Tester Display | Test Part | Control Range | Diagnostic Note |
|---|---|---|---|
| Fuel Meter Operation | Fuel receiver gauge | EMPTY, 1/2, FULL | Confirm that the vehicle is stopped, engine idling |
| OK |
|---|
| Fuel receiver gauge indication is normal. |
| NG |
|
REPLACE COMBINATION METER Click here |
| OK |
|
READ VALUE USING INTELLIGENT TESTER (FUEL INPUT)
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter following menus: Body / Combination Meter / Data List.
Check the values by referring to the table below.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| Fuel Input | Fuel input signal Min.: 0, Max.: 255 | Fuel gauge indicates (E): 6.6 (L) | - |
| Fuel gauge indicates (1/2): 32.1 (L) | |||
| Fuel gauge indicates (F): 57.3 (L) |
| OK |
|---|
| Fuel value signal displayed on the intelligent tester is almost the same as fuel receiver gauge indication. |
| NG |
|
REPLACE COMBINATION METER Click here |
| OK |
|
INSPECT FUEL SENDER GAUGE ASSEMBLY
Disconnect the P10 and Q14 connectors.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance: Fuel Sender Gauge (Main) | ||||||
|---|---|---|---|---|---|---|
|
| Standard Resistance: Fuel Sender Gauge (Sub) | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE FUEL SENDER GAUGE ASSEMBLY (for 2UR-GSE) Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (COMBINATION METER - FUEL SENDER GAUGE ASSEMBLY)
Disconnect the J34 connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT FUEL SENDER GAUGE ASSEMBLY
Disconnect the fuel sender gauge connector.
Inspect the fuel sender gauge assembly (main).
Remove the fuel sender gauge assembly (main) with harness connected.
Check that the float moves smoothly between F and E.
Measure the resistance between the terminals 1 (FE) and 2 (S) of the connector according to the value(s) in the table below.
| Standard Resistance (Fuel Sender Gauge Assembly (Main)) | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Inspect the fuel sender gauge assembly (sub).
Remove the fuel sender gauge assembly (sub).
Check that the float moves smoothly between F and E.
Measure the resistance between the terminals 1 (FS) and 2 (E) according to the value(s) in the table below.
| Standard Resistance (Fuel Sender Gauge Assembly (Sub)) | ||||||||
|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPLACE FUEL SENDER GAUGE ASSEMBLY (for 2UR-GSE) Click here |
| OK |
|
REPLACE COMBINATION METER
Replace the combination meter to a new one or a known good one Click here.
| OK |
|---|
| The operation of the combination meter returns to normal. |
| NG |
|
REPLACE ECM (for 2UR-GSE) Click here |
| OK |
|
END