Component description Function check with diagnosis instrument TWD1231VE A figure one or zero on the IN line informs about whether the component has contact with the control unit or not. Figure 0 = No contact Figure 1 = Contact Example 1. If the seventh figure from the right in the upper line is a zero, the preheating function button is disabled. Example 1 A figure one or zero on the OUT line informs about whether the component is enabled or not. Figure 0 = Disabled Figure 1 = Enabled Example 2. If the eighth figure from the right in the upper line is a one, the preheating relay is enabled.
(Please refer to the illustration, “Example 2“) Example 2 Engine history, pre-programmed extreme values Please refer to the “Component description, Control unit“ chapter. Basic data, engine - Shows engine specifications, engine number, “data set“ (parameter file) part number, time when it was installed and where, and by whom, it was programmed. Component list* (Only EDC system) 1. 2. Starter motor 3. Alternator 4. Pre-heating relay 5. Starter relay 6. Main relay 7. Stop relay 8. 9. Switch for sensor, coolant level 10 . 11. 12. 13. Circuit breaker 14. 2 pcs. 16 pin connectors 15. Test connector 16. Control unit 17. Control solenoid (located inside actuator) 18.
Engine speed sensor (located inside actuator) 19. Control rod position sensor (located inside actuator) 20. Coolant temperature sensor (EDC) 21. Charge air temperature sensor 22. 23. 24. Fuel temperature sensor, located in control unit 25. Charge air temperature sensor, located in control unit * The positions in the illustration of the EDC system are the same as the positions in the wiring diagram and show where on the engine each component is located. 16 37