Schematic for fan/relay

[RJRavalli@xxxx]

I am looking to have my mechanic replace my water pump and set the fan to cycle instead of staying on constantly. Which DeLorean manual should I get for him to have if he is going to be checking and dealing with the fan relay? I would rather him do this properly instead of messing around and doing something else to give me headaches in the future.

Thanks for any advice,

Richard