Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK COMBINATION METER INPUT SIGNAL

Perform component function check. Refer to COMPONENT FUNCTION CHECK .

Does monitor value match fuel gauge reading?

YES

GO TO STEP 2 .

NO

Replace combination meter. Refer to REMOVAL AND INSTALLATION .

CHECK FUEL LEVEL SENSOR UNIT CIRCUITS

Check the fuel level sensor circuits. Refer to DIAGNOSIS PROCEDURE .

Is the inspection result normal?

YES

GO TO STEP 3 .

NO

Repair or replace harness or connectors.

CHECK FUEL LEVEL SENSOR UNIT

Perform a unit check for the fuel level sensor unit. Refer to COMPONENT INSPECTION .

Is the inspection result normal?

YES

GO TO STEP 4.

NO

Replace fuel level sensor unit. Refer to REMOVAL AND INSTALLATION .

CHECK FLOAT INTERFERENCE

Check that the float arm does not interfere with or binds to other components in the fuel tank.

Is the inspection result normal?

YES

Replace combination meter. Refer to REMOVAL AND INSTALLATION .

NO

Repair or replace malfunctioning parts.