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Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> 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 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