Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: U2140-87 Can Comm Err (ecm)

Nissan Rogue (T33) 2021-Present Service Manual / Electrical & Power Control :: Body Control System / Dtc/circuit Diagnosis :: U2140-87 Can Comm Err (ecm)

DTC Description

DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-Nissan Ariya vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern Nissan Ariya vehicle is equipped with many electronic control unit, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN-High line, CAN-Low line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No.

CONSULT screen items

(Trouble diagnosis content) 		DTC Detection Condition
U2140–87

CAN comm err (ECM)

[CAN communication error (ECM)] 		Diagnosis condition Ignition switch is ON.
Signal (terminal) CAN communication signal
Threshold BCM cannot communicate CAN communication signal.
Diagnosis delay time 2 seconds or more.

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

CONSULT

  1. Ignition switch ON and wait for 2 seconds or more.

  2. Select “Self diagnosis result” mode of “BCM”.

Is DTC 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

CHECK CAN COMMUNICATION SYSTEM

Check CAN communication system. Refer to Trouble Diagnosis Flow Chart.

>>

Inspection End.

    Dtc/circuit Diagnosis. U2140-57 Can Comm Err (ecm)
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen items (Trouble diagnosis content) DTC Detection Condition U2140-57 CAN comm err (ECM) [Control area network communicat...
    Dtc/circuit Diagnosis. U2141-87 Can Comm Err (tcm)
    DTC Description DESCRIPTIONCAN (Controller Area Network) is a serial communication line for real time applications. It is an on-Nissan Ariya vehicle multiplex communication line...

    Other materials:

    P0719 Brake Pedal Switch B
    DTC Description DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition P0719 Brake pedal switch B (Brake Switch "B" Circuit Low) Diagnosis condition When a deceleration G of -0.13 G or more occurs after the Nissan Ariya vehicle ...

    How to Use This Manual. How to Follow Trouble Diagnoses
    Description NOTE: Trouble diagnoses indicate work procedures required to diagnose problems effectively. Observe the following instructions before diagnosing. Before performing trouble diagnoses, read the “Work Flow” in each section. After repairs, re-check that the problem has be ...

    System
    Intelligent Around View Monitor With 8" Color Display System Description SYSTEM DIAGRAMAround View Monitor Control Unit Input Signal (CAN Communication) Transmit unit Signal name AV control unit Camera switch signal Language setting signal Combination meter MOD setting sig ...