It is just a production cost thing where the extra added circuits for additional systems are cheaper to make in a universal unit than to make different OVP specific models..so, that extra fused circuit is just not used on some cars, but it is on another, allowing for one relay to fit many models.


You will notice on your OVP plug socket connector that there are blank sockets..on other models they are full..allowing the manufacturer to use even the same 9 pin sockets and wiring them accordingly for each chassis for additional cost control and a single part to fit many models.. Same socket will allow different wiring/models..so, same deal...........

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A Dalton