EU3 Multifunction Relay Unit - YWB100710 / YWB100970
Valid Part Numbers
Valid part numbers for the ECU MFRU are YWB100710, YWB100970 and YWB100970L only. Other part numbers may refer to a component which looks outwardly identical but is either the EU2 unit or specified for use in the air conditioning system and is not compatible.
Standard automotive pin numbers 30, 85, 86 & 87 are marked for the internal relays for reference.
Pinout & Connectors
View of MFRU connectors as seen from the cable entry.