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well this is an iterresting one & any feedback would be awsome!
our 07 br350 is having intermittent shut down of the tiller rotors,all rear hydaulics work normally..now there is a number 12 output LED (green) on the HDP unit witch is an autorisation for tiller on/off & the only output that comunicates with the MP...this light will go off when tiller is autorised & on when not (normal)
in turn stopping signle to tiller pump,have tested all switches & speed pot related to tiller functions and all seems normal..(basicly what input controlls this number 12 output)...??

This is a gost problem...

check the safety stop on the dash near the throttle control could be intermittent . also the auto rise HDP receives a signal form the steering controls FNR, drive processor.

hay thankyou for the input the cats out pushing at the minut after summer sevice but will look into your advice once its starts grooming...thanks again buddy will let you know case others have a similar problem.