Preheating device — check (diesel)

1 Disconnect the plug from the coolant temperature sensor on the upper connection pipe.

Attention! When the sensor plug is disconnected, the cold state of the engine is simulated and the system preheats when the ignition is switched on.

2. Remove the tips from the glow plugs.

3. Connect one voltmeter lead to one of the spark plug plugs and the other to «mass» (-) car.

4. Turn on the ignition and check the voltage. The voltmeter should show battery voltage.

Otherwise, find a break in the power wire and repair it.