DTC U2001: Invalid Instrument Panel Transmitted SPI Data: Description

DTC U2001 indicates that BFC has detected a loss of SPI data from instrument cluster. DTC U2001 will set when Ignition 0 is active, and when all 3 data bytes received from instrument cluster are zero or do not sumcheck for 64 transmission cycles. DTC U2001 can be cleared using scan tool, or history DTC will disappear after 100 ignition cycles if fault conditions do not reoccur.