Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: U214e-87 Can Comm Circuit

Nissan Rogue (T33) 2021-Present Service Manual / Body Exterior, Doors, Roof & Vehicle Security :: Door & Lock / Dtc/circuit Diagnosis :: U214e-87 Can Comm Circuit

Intelligent Key Unit

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
U214E-87

CAN comm err (combination meter)

[CAN communication error (combination meter)] 		Diagnosis condition Ignition switch ON
Signal (terminal) CAN communication signal
Threshold Transmission error or reception error
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

CONSULT

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

  2. Select “Self diagnosis result” mode of “INTELLIGENT KEY”.

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

Check CAN communication. Refer to Trouble Diagnosis Flow Chart.

Is DTC “U214E-87” displayed?

YES>>

Repair or replace the malfunctioning part.

NO>>

Check intermittent incident. Refer to Intermittent Incident.

Automatic Back Door Control Unit

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
U214E-87

CAN comm err (combination meter)

[CAN communication error (combination meter)] 		Diagnosis condition Ignition switch ON
Signal (terminal) CAN communication signal
Threshold Automatic back door control unit is unable to receive the CAN communications signal from combination meter
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

Inhibit automatic back door system all function

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

CONSULT

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

  2. Select “Self diagnosis result” mode of “AUTOMATIC BACK DOOR”.

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

Check CAN communication. Refer to Trouble Diagnosis Flow Chart.

Is DTC “U214E-87” displayed?

YES>>

GO TO 2.

NO>>

Check intermittent incident. Refer to Intermittent Incident.

CHECK CONNECTOR

  1. Ignition switch OFF.

  2. Check the automatic back door control unit harness connector for disconnection or looseness.

  3. Check the touch sensor RH harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair/replace harness or connector, and securely lock the connector.

CHECK AUTOMATIC BACK DOOR CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

Check the automatic back door control unit power supply and ground circuits. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair/replace harness, connector, fuse, or fusible link, and GO TO 5.

CHECK TERMINAL

  1. Ignition switch OFF.

  2. Disconnect automatic back door control unit harness connector and then check the automatic back door control unit pin terminals for damage or loose connection with harness connector.

  3. Disconnect touch sensor RH harness connector and check touch sensor RH pin terminal for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

Repair/replace harness, connector, or terminal.

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