The original wiring loom is made using standard colour codes so when there is a fault a wiring diagram can be used to trace the fault. If home made wiring is used the only person that knows which wire connects to what is the person that did it. If the van was converted to a camper...
SP400A169 680 12 55Motor pump _K21R63G2, 0626029010701H (including pump)DSA12-NS40/P1R-01CT1505.5AZKA63S-4TCP7002-1041-0010729493-002qdyPart No.REF CAM-DE-TOOL diagram No.22ES14R20-STS22-HZP3R NR:3R501.99036 , 0…+16 bar,Out: 4…20mA RL<(IN-8V)/0.02A,In: 8…32VDC,max....