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�� #Trionic Engine Management System With ETS:

WIRING DIAGRAM

DESCRIPTION OF OPERATION
The method of operation of the Trionic system is described under Trionic Engine Management System. Only the additional function for the ETS is described here.

ETS control module 376
When the Trionic engine management system is used in cars with ETS, the ETS control module (376) has the following functions in the Trionic system:
^ In order to enable the ETS control module to increase and regulate engine speed when starting from cold, engine coolant temperature sensor 202 sends coolant temperature data to the ETS control module.
^ The ETS control module grounds A/C relay 156.
^ The ETS control module obtains data on the current engine speed from the Trionic control module.
^ Integrated into the ETS control module is an idle speed control function which regulates the flow of air passing through the throttle valve.

Should a fault arise in the idle speed control function, idling speed will be automatically set to about 1200 rpm. It remains constant at this speed.