Diagram showing connections

Functions of the injection control unit:

• controlling the engagement and cut out of one or more fans (engine cooling and climate control function)
• controlling post-ventilation (for a maximum of 6 minutes)
• controlling the lighting up of the coolant temperature pre-alarm warning light in the instrument panel
• controlling the cooling temperature gauge
• fault diagnosis of the operation of one or more fans
• acquiring the engine coolant temperature
• recovery management.

Diagram showing connections

Key

1. Engine management control unit
2. Centralized diagnostic socket
3. Diagnostic warning light
4. Instrument panel in dashboard (indicators + pre-alarm warning light in panel)
5. Engine coolant overheating warning light
6. Fan(s)
7. Air conditioning compressor
8. Engine coolant temperature gauge
9. Relay box
10. Engine coolant temperature sensor
11. Climate control pressure switch
12. Climate control system control unit