Nissan Rogue (T33) 2021-Present Service Manual: U2173-87 Can Comm Circuit

Nissan Rogue (T33) 2021-Present Service Manual / Driver Information & Multimedia :: Meter, Warning Lamp & Indicator / Type B :: Dtc/circuit Diagnosis / U2173-87 Can Comm Circuit

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Ariya vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Ariya vehicles, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with two 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 terms

(Trouble diagnosis content) 		DTC detected condition
U2173-87

CAN COMM CIRCUIT

(CAN communication circuit) 		Diagnosis condition When ignition switch is ON.
Signal (terminal) CAN communication signal
Threshold When combination meter is not transmitting or receiving
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

The combination meter activates the fail-safe control if CAN communication with each unit is malfunctioning.

Refer to Fail-Safe.

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

CONSULT

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

  2. Select “Self diagnosis result” mode of “M&A”.

  3. Check DTC.

Is DTC U2173-87 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

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

  1. Ignition switch ON.

  2. Erase DTC.

  3. Perform DTC confirmation procedure again. Refer to DTC Description.

Is DTC U2173-87 detected again?

YES>>

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

NO>>

Inspection End.

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