Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: U1fa1-86 Can Comm Circuit

Nissan Rogue (T33) 2021-Present Service Manual / Brakes :: Brake System / Dtc/circuit Diagnosis :: U1fa1-86 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms DTC detection condition
U1FA1 86 CAN communication error (ADAS control unit) 1 Diagnosis condition When Ignition switch is ON.
Signal (terminal) CAN communication signal
Threshold When a malfunction is detected in ADAS control unit 2 system.
Diagnosis delay time 1 second or less
2 Diagnosis condition When Ignition switch is ON.
Signal (terminal) CAN communication signal
Threshold When a malfunction is detected in ADAS control unit 2 signal.
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • ADAS control unit 2

  • CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always Ignition switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

CONSULT

  1. Ignition switch OFF to ON without depressing the brake pedal.

  2. Ignition switch OFF and disconnect CONSULT from data link connector.

  3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  4. Ignition switch ON without depressing the brake pedal.

  5. Erase self-diagnosis result for “BRAKE”.

  6. Ignition switch OFF and disconnect CONSULT from data link connector.

  7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

  8. Ignition switch ON without depressing the brake pedal.

  9. Perform self-diagnosis for “BRAKE”.

Is DTC “U1FA1-86" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: Inspection End.

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

    Dtc/circuit Diagnosis. C18fa-44 Programing Incomplete
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms DTC detection condition C18FA 44 Calibration incomplete Diagnosis condition When Ignition switch is ON. Signal (...
    Dtc/circuit Diagnosis. Power Supply and Ground Circuit
    Diagnosis Procedure CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT Ignition switch ON POWER SUPPLY Ignition switch OFF and disconnect CONSULT from data link connector. Get out...

    Other materials:

    System temporarily unavailable
    When any of the following alerts appear on the vehicle information display of the Nissan Rogue, a chime will sound and the I-BSI system will automatically switch off for safety. "Unavailable Slippery Road": Occurs when the VDC system (except traction control) or the ABS is actively operating. ...

    Dtc/circuit Diagnosis. U1ca3-08 Lin Communication 4
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC detection condition U1CA3-08 LIN communication 4 (Local interconnect network communication 4) Diagnosis condition Engine running Signal (terminal) LIN (heated seat) signal (ter ...

    Symptom Diagnosis. Rear Lh Side Power Window Does Not Operate
    When Both Power Window Main Switch and Rear Power Window Switch Lh Are Operated Diagnosis Procedure CHECK REAR POWER WINDOW SWITCH LH POWER SUPPLY AND GROUND CIRCUIT Check rear power window switch LH power supply and ground circuit. Refer to Diagnosis Procedure. Is the inspection result normal? ...