PRE-HEATING SYSTEM (w/ DPF) ON-VEHICLE INSPECTION

Note

Turn the ignition switch off for 60 seconds before performing the following inspections.


  1. INSPECT ILLUMINATION DURATION OF GLOW INDICATOR LIGHT


    1. A01KH46E01
      Text in Illustration
      *a Glow Indicator Light Illumination Time
      *b Engine Coolant Temperature
      *c When atmospheric pressure is 100 kPa

      Turn the ignition switch on (IG) and measure the length of time that the light remains illuminated.

      Light illumination duration
      Refer to the graph

      Tech Tips

      Depending on the engine coolant temperature, the indicator light illumination time changes as shown in the illustration.

  2. INSPECT PRE-HEATING FUNCTION


    1. Measure the voltage applied to the glow plugs.

      Standard voltage
      11 to 14 V at 25°C (77°F) or less

    2. Measure the length of time that voltage is applied to the glow plugs while the ignition switch is on (IG).

      Standard Pre-heating Time
      Condition Pre-heating Time
      Battery voltage at 14 V or higher 1 second
      Engine coolant temperature 40°C (104°F) or higher 1 second
      Other than above 15 seconds

  3. INSPECT AFTER GLOW


    1. Measure the voltage applied to the glow plugs after the engine is started.

      Standard Voltage
      Measurement Condition Specified Condition
      Engine coolant temperature 25°C (77°F) or less 11 to 14 V
      Engine coolant temperature 25°C (77°F) or higher 0 V

      Tech Tips

      The maximum amount of time that voltage is applied to the glow plugs is 20 minutes.