PRE-HEATING SYSTEM ON-VEHICLE INSPECTION

Note

Turn the IG switch OFF for 60 seconds before performing this inspections.


  1. INSPECT LIGHTING TIME OF GLOW INDICATOR LIGHT

    A01KHFJE01
    Text in Illustration
    *a Lighting Time
    *b Engine Coolant Temperature

    1. Turn the IG switch ON, and measure the lighting time.

      Lighting time
      Refer to the chart graph

  2. INSPECT AFTER GLOW TIME

    A01KHZKE01
    Text in Illustration
    *1 Preheating Timer
    *a Lighting Time
    *b Engine Coolant Temperature

    1. After the engine starting, measure the time when the battery voltage is applied to the terminal SREL of the emission ECU.

      After glow time
      Refer to the chart graph

  3. INSPECT GLOW PLUGS

    Note


    • Be careful not to damage the glow plug pipes as it could cause an open circuit or shorten life of the glow plugs.


    • Avoid getting oil and gasoline on the glow plug when cleaning.


    • During inspection, be sure to wipe any oil of the terminal and Bakelite washer with a dry cloth


    • Be careful no to apply more than 11 V to the glow plug as it could cause an open circuit.


    1. A01KFM5

      Check that there is continuity between the glow plug terminal and ground.

      Standard resistance
      Approx. 0.72 Ω at 20°C (68°F)

      If there is no continuity, replace the glow plug.

  4. INSPECT GLOW PLUG RELAY

    A01KH01

    1. Measure the resistance between the terminals.

      Standard resistance (20 °C (68 °F))
      Terminals Resistance
      1 - 2 10 MΩ or more
      3 - 4 62.5 - 90.9 MΩ

      If the resistance is not standard, replace the relay.

    2. Check the continuity between the terminals 3 and 4 when applying battery voltage between the terminal 1 and 2.

      If there in no continuity, replace the relay.