Other information:
Inspection
Wrap tin foil around the end of the voltmeter test lead to
prevent damaging the heater line. Apply pressure on the tin foil with
hand and move the tin foil along the grid line to check for open
circuits.
1.
Turn on the defogger switch and use a voltmeter ...
Inspection
[On vehicle inspection]
1.
Accelerate the engine to about 3,000 rpm for 3 minutes or longer.
2.
Remove the spark plug.
3.
Check the spark plug visually.
If the electrode is dry, the spark plug is normal.
If the electrode is wet, check the damage and electrode gap as belo ...