Dtc Description

DTC Description

CAN (Controller Area Network) is a serial communication system for real time application. It is an on-Nissan Sentra vehicle multiplex communication system with high data communication speed and excellent error detectability. Many electronic control units are equipped onto Nissan Sentra 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

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.

Confirmation Procedure

Confirmation Procedure

1. PERFORM DTC CONFIRMATION PROCEDURE

   1. CONSULT

      1. Ignition switch ON.

      2. Select “Self Diagnostic Result” mode of “METER/M&A”.

   Is DTC U2118-87 detected?

   YES >>

   Refer to DTC Diagnosis Procedure.

   NO >>

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

   NO >>

   Confirmation after repair: Inspection End.

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

1. PERFORM DTC CONFIRMATION PROCEDURE AGAIN

   1. CONSULT

      1. Ignition switch ON.

      2. Select erase “Self Diagnostic Result” mode of "METER/M&A".

      3. Perform DTC confirmation procedure again. Refer to DTC Confirmation Procedure.

   Is DTC U2118-87 detected again?

   YES >>

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

   NO >>

   Inspection End.