5. Now touch the positive glow plug terminal with the red test probe and the tester will
display the resistance value of the plug as examples shown:
6.0 Low Battery Power
The tester will switch OFF if there is no activity within 70 seconds when power ON to
conserve battery life. In event that the battery power is low, it will display as
shown .
In this case, change the batteries (Type AAA - 1.5V x2).
Good plug.
[Range: 0.07
Ω
to 2.50
Ω
]
Beeper
will beep once.
High Resistance.
[Range 2.51
Ω
to 5.50
Ω
]
Refer car service manual before replace.
Beeper will beep twice for 5 times.
Bad Resistance.
[Range: 5.51
Ω
to 25.00
Ω
]
Plug need to be replaced.
Beeper will beep repeatedly.
Shorted.
[Range 0.00 to 0.06
Ω
]
Beeper will beep repeatedly.
Open circuit or no contact.
No sound
