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Home >> Infiniti >> 2024 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> Engine (ECM) >> DTC P1212: TCS Communication Line >> DTC Description

DTC Description

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 not only for "ABS actuator and electric unit (control unit)" but also for ECM after TCS related repair.

DTC DETECTION LOGIC 

NOTE:
  • If DTC P1212 is displayed with DTC UXXXX, perform the trouble diagnosis for DTC UXXXX.
  • If DTC P1212 is displayed with DTC P0607, perform the trouble diagnosis for DTC P0607.

Freeze frame data is not stored in the ECM for this self-diagnosis.

DTC No. Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition Possible cause
P1212 TCS/CIRC
(TCS communication line)
ECM cannot receive the information from "ABS actuator and electric unit (control unit)" continuously.
  • Harness or connectors

    (The CAN communication line is open or shorted.)

  • ABS actuator and electric unit (control unit)
  • Dead (Weak) battery