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Home >> Infiniti >> 2011 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0460 Through P1220 >> DTC P1212: TCS Communication Line >> DTC Logic >> DTC Detection Logic
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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 DETECTION LOGIC

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