TCS Communication Line
TCS COMMUNICATION LINENOTE: If DTC P1212 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC U1000, U1001. Refer to "DTC U1000, U1001 CAN COMMUNICATION LINE".
This CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse signals are exchanged between ECM and VDC/TCS/ABS control unit.
Be sure to erase the malfunction information such as DTC not only for VDC/TCS/ABS control unit but also for ECM after TCS related repair.