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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:
0.12
- 0.18 Ω (at 20°C)
<4M40> 0.15 - 0.25 Ω (at
20°C) <4M41>
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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