4- and 5-cylinder engine
1. Disconnect the connector and high voltage wire from the transformer.
Checking the resistance of the primary winding of the ignition coil
2. Connect an ohmmeter to terminals 1 and 15.
3. Required value: 0.5-0.7 ohm.
4. If the value obtained does not match the required value, replace the transformer.
Checking the resistance of the secondary winding of the ignition coil
5. Connect an ohmmeter to terminals 15 and 4.
6. Required value: 3-4 kΩ.
7. If the value obtained does not match the required value, replace the transformer.
8. Connect a voltmeter to pins 1 and 3 (-) plug (4).
9. Turn on the ignition. Required value: battery voltage 12-14 V. If necessary, repair an open in the wiring according to the wiring diagram.
10. Switch off the ignition, disconnect the voltmeter.
Checking work
11. Disconnect the plug of the cold start valve and the multi-pin connection of the injection valves.
12. Connect the diode indicator to pins 2 and 3 of the plug (4).
Attention! During this test, do not touch the connected parts of the high voltage transformer and the indicator wires with your hand.
13. Turn on starter.
14. The LED should flash.
15. Otherwise, check the Hall sensor.
16. If no fault is found, the Digifant control unit is obviously faulty.
17. Switch off the ignition.
18. Connect the triple plug to the transformer.
Only 4-cylinder engine
1. Connect a voltmeter to terminals 1 and 15 of the transformer.
2. Turn on the ignition.
3. Required value: at least 2 V, after 1-2 seconds it should drop to 0 V. Otherwise, replace the transformer.
4. Connect the plug to the cold start valve and the multi-pin connection of the injection valves.
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