DTC U2004: Transmitted SPI Data Output Low: Notes
CAUTION:
Body Function Controller (BFC) Pink 24-pin connector C3 contains power and ground sources. When removing BFC, always disconnect connector C3 first before disconnecting connectors C1 and C2. When installing BFC, always reconnect connectors C1 and C2, then connector C3 last.
NOTE:
DTCs U2006 and U2007 must be diagnosed before DTC U2004.