DTC P1212: Abs/TCS Communication Line : Description
WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
This CAN communication line is used to control the smooth engine operation during the TCS operation. Pulse signals are exchanged between ECM and ABS actuator and electric unit (control unit). Be sure to erase the malfunction information, such as DTC in ABS actuator and electric unit (control unit) and in ECM after repair.