function CRP850-kar rail caadi xakamaysada bamka ee waa inuu ku daydo ECU naaftada (Engine Control Unit), bixiyaan Bosch, Denso, Delphi iyo signal kale rail caadi gacanta bamka in la wado-kar ah bambooyin rail caadiga ah iyo cadaadis sare rail caadi shaqada Injector . Beegyada uu signal drive lagu hagaajin karo sida ay xaaladda dhabta ah dadka isticmaala '; isutagga badbaadi kartaa shaqaalaha dayactirka fududahay in la xukumi xaaladda shaqeeya nidaamka-kar caadi rail iyo dayactirka.

Waxa loo isticmaalaa si ay u tijaabiso, kuwaas oo bamka: Bosch CP1, Bosch CP2, Bosch CP3, Delphi, Siemens, DENSO HP0, HP3 IYO HP4.