Nissan Rogue (T33) 2021-Present Service Manual: U1cfa Can Comm Circuit

Nissan Rogue (T33) 2021-Present Service Manual / Engine :: Engine Control System / Kr15ddt :: Dtc/circuit Diagnosis / U1cfa Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content) 		DTC detection condition
U1CFA 00

Lost communication with USM in secondary ECU

(Lost communication with USM in secondary ECU) 		Diagnosis condition Ignition switch ON
Signal (terminal) CAN communication signal
Threshold ECM is not receiving CAN communication signal other than OBD (emission related diagnosis).
Diagnosis delay time 30 seconds or more

POSSIBLE CAUSE

  • Harness or connectors (CAN communication line is open or shorted)

  • IPDM E/R

FAIL-SAFE

Engine Control System

Not applicable

Stop/Start System

When a DTC is detected, the stop/start indicator lamp blinks slowly and the stop/start system operation is prohibited. When ECM detects error while operating the stop/start system, ECM restarts the engine.

DTC CONFIRMATION PROCEDURE

CHECK DTC PRIORITY

If DTC U1CFA is displayed with DTC P0607, first perform the confirmation procedure (trouble diagnosis) for DTC P0607.

Is DTC P0607 detected?

YES>>

Proceed to DTC Description.

NO>>

GO TO 2.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1. Ignition switch OFF and wait at least 10 seconds.

  2. Ignition switch ON.

  3. Ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.

>>

GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Ignition switch ON and wait at least 3 seconds.

  2. Check 1st trip DTC.

Is DTC U1CFA detected?

YES>>

Refer to Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK DTC PRIORITY

If DTC U1CFA is displayed with DTC P0607, first perform the confirmation procedure (trouble diagnosis) for DTC P0607.

Is DTC P0607 detected?

YES>>

Proceed to DTC Description.

NO>>

Perform the trouble diagnosis for CAN communication system. Refer to Trouble Diagnosis Flow Chart.

    U1cf9 Can Comm Circuit
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition U1CF9 00 Lost communication with VDC in secondary ECU (Lost comm...
    U2118 Can Comm Circuit
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition U2118 87 CAN comm err (Intelligent Key) [CAN comm err (Intellige...

    Other materials:

    P0461 Fuel Level Sensor
    DTC Description DTC DETECTION LOGICDriving long distances naturally affect fuel gauge level.This diagnosis detects the fuel gauge malfunction of the gauge not moving even after a long distance has been driven. DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition ...

    Symptom Diagnosis. Door Mirror Does Not Operate
    Diagnosis Procedure (Without automatic drive positioner system) CHECK DOOR MIRROR CIRCUIT Check door mirror. Refer to Diagnosis Procedure. Is the inspection result normal? YES>> GO TO 2. NO>> Repair or replace the malfunctioning parts. REPLACE DOOR MIRROR MOTOR Replace door mi ...

    NissanConnect Owner's Manual
    For models equipped with the advanced NissanConnect System found in the Nissan Rogue, you can access the full digital NissanConnect Owner's Manual using the QR code on this page (US only) or refer to the printed version if supplied. This dedicated manual provides detailed guidance for operating th ...