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Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (DTCS) (1 Of 4) >> DTC/Circuit Diagnosis >> DTC U1024: Can Comm Circuit >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE:

If DTC U1024 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607.

Refer to DTC INDEX .

DTC No. Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition Possible cause
U1024 VVEL CAN COMM CIRCUIT
(VVEL CAN communication)
  • When VVEL control module cannot transmitting or receiving CAN communication signal with ECM for 2 seconds or more.
  • When detecting error during the initial diagnosis of CAN controller of VVEL control module.
  • Harness or connectors

    (CAN communication line is open or shorted)

  • ECM
  • VVEL control module