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Home >> Infiniti >> 2020 >> QX80 Luxe, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (4 Of 5) >> Engine (ECM) >> DTC P1212: TCS Communication Line >> DTC Description >> 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
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