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

Nissan Rogue (T33) 2021-Present Service Manual / Ventilation, Heater & Air Conditioner :: Heater & Air Conditioning Control System / Manual Air Conditioning :: 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 ON
Signal (terminal) CAN communication signal
Threshold A/C amp. is not transmitting or receiving CAN communication signal
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM SELF DIAGNOSIS

CONSULT

  1. Ignition switch ON.

  2. Select "Self diagnosis result" mode of "HVAC".

  3. Check DTC.

Is DTC 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 CAN COMMUNICATION SYSTEM

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

>>

Inspection End.

    U1caa-02 Mode Door Motor
    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition U1CAA-02 Mode door motor (Mode door motor) Diagnosis conditi...
    Power Supply and Ground Circuit
    A/c Amp. Diagnosis Procedure CHECK A/C AMP. GROUND CIRCUIT FOR OPEN Ignition switch OFF. Disconnect A/C amp. connector. Check continuity between A/C amp. harness connector and g...

    Other materials:

    For Side and Rollover Collision
    When SRS is activated in a collision FOR SIDE AND ROLLOVER COLLISION: When SRS is activated in a collisionCAUTION: Due to varying models and option levels, not all parts listed in the chart below apply to all Nissan Ariya vehicles. WORK PROCEDURE Before performing any of the following steps, e ...

    Installation d'un dispositif de retenue pour enfant dos à la route à l'aide du système LATCH
    Pour plus d'informations, reportez-vous à tous les avertissements et à toutes les précautions indiquées dans les sections "Sécurité enfants" et "Dispositifs de retenue pour enfant" avant d'installer un dispositif de retenue pour enfant. Sur Nissan Rogue, une installation correcte doit t ...

    P2270 Ho2s2
    DTC Description The heated oxygen sensor 2 has a much longer switching time between rich and lean than the air fuel ratio (A/F) sensor 1. The oxygen storage capacity of the three way catalyst (manifold) causes the longer switching time.MALFUNCTION ATo judge the malfunctions of heated oxygen ...