The electrical circuit of the system of accelerated preheating of the engine 1D56T
1. Make sure the battery voltage is between 11-13V.
2. Make sure that the temperature of the coolant is not higher than 20°C.
Attention! At a higher coolant temperature, disconnect the block from the coolant temperature sensor.
3. Measure the electrical resistance between the electrode and the case ("weight") starting candle.
4. The resistance should be within 0.05-0.07 ohm at an ambient temperature of 5-35°C.
Attention! The measured resistance of one spark plug is equivalent to the parallel resistance of all four spark plugs.
5. Measure the resistance between the terminal "G" glow plug relay (1, 2) and spark plug electrode.
6. Resistance should be in the range of 0.14-0.16 ohms.
Attention! Before measuring resistance, make sure that the terminal "G" The relay is not supplied with battery voltage.
7. Attach a voltmeter to the spark plug electrode and spark plug body and measure the voltage immediately after the ignition key is turned to "ON" (preheating on) without starting the starter.
8. After about 2-4 seconds, the voltage should settle within 9-11 V.
Attention! The time required for the voltage to drop varies depending on the temperature of the firing plugs and the applied voltage.
9. Measure the voltage during engine start, which must be at least 4 V.
10. Start the engine and measure the voltage while the engine is warming up, which should be between 5-8V.
11. When the coolant warms up to a temperature of 30°C or more, or if 30 seconds have passed since the engine was started, the voltage should drop to 0 V.