METER / GAUGE SYSTEM Engine Oil Level Sensor Circuit

DESCRIPTION

The combination meter assembly and engine oil level sensor are connected via direct line. The combination meter assembly determines the engine oil level based on the engine oil level sensor ON/OFF signal.

Tech Tips

As the engine oil level may be unstable when the engine is cold or running at high speeds, the combination meter assembly receives the engine coolant temperature signal and engine speed signal from the ECM via CAN communication in order to prevent the oil level warnings from being output erroneously.

WIRING DIAGRAM

B0088NPE01
*a Engine Oil Level Sensor
*b Combination Meter Assembly
*c CAN Communication Line

CAUTION / NOTICE / HINT

Note


  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

  • The following troubleshooting procedure is based on the assumption that the SFI system is normal. Confirm that the SFI system is not malfunctioning before performing the following procedure.

    for A25A-FKS (w/ Canister Pump Module): Click here

    for A25A-FKS (w/o Canister Pump Module): Click here

    for 2GR-FKS: Click here

    for 6AR-FSE: Click here

PROCEDURE


  1. INSPECT ENGINE OIL LEVEL SENSOR


    1. Remove the engine oil level sensor.

      for A25A-FKS: Click here

      for 2GR-FKS: Click here

      for 6AR-FSE: Click here

    2. Inspect the engine oil level sensor.

      for A25A-FKS: Click here

      for 2GR-FKS: Click here

      for 6AR-FSE: Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ENGINE OIL LEVEL SENSOR for A25A-FKS: Click here
    REPLACE ENGINE OIL LEVEL SENSOR for 2GR-FKS: Click here
    REPLACE ENGINE OIL LEVEL SENSOR for 6AR-FSE: Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (ENGINE OIL LEVEL SENSOR - COMBINATION METER ASSEMBLY)


    1. Disconnect the K21 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C38-1 - K21-27 (OILW) Always Below 1 Ω
      C38-1 or K21-27 (OILW) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR