Terminal And Starter Relays

Relays are used to switch between terminals ACC/IGN1/IGN2. Normally-open relays are driven by the SMK unit and are located either in the passenger or engine compartment depending on the vehicle architecture.

Only one relay coil is connected to the terminal outputs of the SMK unit.

These relays should integrate with a resistor connected in parallel to the coil in order to reduce the transients during communication.