Well I'm learning a little about this but still have a way to go.
Much of the car data with regards to customer settings, service information, customisation etc. is stored in the Body Computer.
The instrument panal is the master (as far as I can tell) with regards to Service Intervals. It support 9 service intervals. After the 9th service scheduled services are no longer warned/displayed. Service data from the dash is stored in the body computer...as is other info. If you have new replacement components fitted to the car, such a a new instument panel, then there is a "proximation" routine via the Fiat Examiner that transfers "stored" data back to the various car nodes (the dash board computer is a node. There are others).
With regards to Service interval the Service Counter will prompt periodically to the due service date/mileage. It will continue to prompt to 1000km/miles and then shut up.
To turn off normal service warnings a technician can just clock 9 services in succession. Note! All 9 service interval data is recorded in the dash panel (and body computer).
The oil change warning is a little different. I think this is based on the number of times the DPF filter has recycled/regenerated itself. General Motors use a "GMOLS" algorithm (I think that is what it is called). For Fiat Croma I don't know.
Service and Oil Change resets are CAN based functions. There are a number of Service and Oil Reset tools out there. One CAN based generic model is the UIFTECH model SI605 (http://www.uiftech.com/productInfo.jsp?producttypeid=14&ProID=107&intPage=1)
I have no idea as to if this works with a Croma. When I am out of warranty then, assuming no other info comes to light, I will write to UIFTECH and even make a speculative purchase to see if it works on a Croma.
Nick /////
Much of the car data with regards to customer settings, service information, customisation etc. is stored in the Body Computer.
The instrument panal is the master (as far as I can tell) with regards to Service Intervals. It support 9 service intervals. After the 9th service scheduled services are no longer warned/displayed. Service data from the dash is stored in the body computer...as is other info. If you have new replacement components fitted to the car, such a a new instument panel, then there is a "proximation" routine via the Fiat Examiner that transfers "stored" data back to the various car nodes (the dash board computer is a node. There are others).
With regards to Service interval the Service Counter will prompt periodically to the due service date/mileage. It will continue to prompt to 1000km/miles and then shut up.
To turn off normal service warnings a technician can just clock 9 services in succession. Note! All 9 service interval data is recorded in the dash panel (and body computer).
The oil change warning is a little different. I think this is based on the number of times the DPF filter has recycled/regenerated itself. General Motors use a "GMOLS" algorithm (I think that is what it is called). For Fiat Croma I don't know.
Service and Oil Change resets are CAN based functions. There are a number of Service and Oil Reset tools out there. One CAN based generic model is the UIFTECH model SI605 (http://www.uiftech.com/productInfo.jsp?producttypeid=14&ProID=107&intPage=1)
I have no idea as to if this works with a Croma. When I am out of warranty then, assuming no other info comes to light, I will write to UIFTECH and even make a speculative purchase to see if it works on a Croma.
Nick /////