Pre-Heating System On-Vehicle Inspection


  1. INSPECT ILLUMINATION DURATION OF GLOW INDICATOR LIGHT

  2. INSPECT PRE-HEATING FUNCTION

  3. INSPECT AFTER GLOW

Pre-Heating System -- On-Vehicle Inspection


NOTICE:
Turn the engine switch off for 60 seconds before performing the following inspections.


1. INSPECT ILLUMINATION DURATION OF GLOW INDICATOR LIGHT


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

    Light illumination duration:
    Refer to the graph
    Text in Illustration
    *a
    		Glow Indicator Light Illumination Time
    *b
    		Engine Coolant Temperature
    *c
    		When atmospheric pressure is 100 kPa (1.0 kgf/cm2)
    HINT:
    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 plug assemblies.

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

  1. Measure the length of time that voltage is applied to the glow plug assemblies while the engine switch 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 plug assemblies after the engine is started.

    Standard Voltage:
    Measurement Condition
    		Specified Condition
    Engine coolant temperature 20°C (68°F) or less
    		11 to 14 V
    Engine coolant temperature 20°C (68°F) to 41°C (106°F)
    		0 to 14 V
    Engine coolant temperature 41°C (106°F) or higher
    		0 V
    HINT:
    The maximum amount of time that voltage is applied to the glow plug assemblies is 20 minutes.