Nissan Rogue (T33) 2021-Present Service Manual: U214f-87 Can Comm Err (bcm)

Nissan Rogue (T33) 2021-Present Service Manual / Electrical & Power Control :: Charging System / With Idle Start/stop :: Dtc/circuit Diagnosis / U214f-87 Can Comm Err (bcm)

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, CANLow 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 terms (Trouble diagnosis content) DTC detection condition
U214F-87 CAN comm err (BCM) [CAN communication error (BCM)] Diagnosis condition Engine running at idle
Signal (terminal) CAN communication signal
Threshold Sub starter & generator cannot communicate CAN communication signal
Diagnosis delay time 2 second or less

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

Inhibit the idle start/stop system

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

  1. Start the engine and let it idle and wait for 2 seconds or more.

  2. Select “Self diagnosis result” mode of “Sub starter & generator”.

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. Refer to Trouble Diagnosis Flow Chart.

>>

Inspection End.

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