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1.Check that the battery voltage is 11 - 13 V.
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2.Check that the engine coolant temperature is 40°C or less.
note |
If the engine coolant temperature is too high, disconnect the engine coolant temperature
sensor connector.
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3.Measure the resistance between the glow plug plate and the glow plug body (earth). Standard value: 0.15 - 0.25 Ω (at 20°C)
note |
The resistance value is the parallel resistance value for the four glow plugs.
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4.Connect a voltmeter between the glow plug plate and the glow plug body (earth). 5.Measure the voltage immediately after the ignition switch is turned to ON (without
starting the engine). Standard value: 9 - 11 V (Drops to 0 V after 4 - 8 seconds have
passed)
In addition, check to be sure that the glow indicator
lamp (red) illuminates immediately after the ignition switch is turned to ON.
note |
The time during which the voltage appears (energizing time) will depend on the engine
coolant temperature.
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6.Measure the voltage while the engine is cranking. Standard value: 6 V or more 7.Start the engine and measure the voltage while the engine is warming up. However, if the engine coolant temperature rises above 60°C or when 180 seconds
have passed since the engine was started, the voltage will always return to 0 V (Refer to the
Glow Plug Energization Timing Chart). Standard value: 12 - 15 V
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