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Nissan Sentra B18 (2020-2025) Service Manual: Dtc Diagnosis [8ch Can Gateway (8ch Can Gateway)]

B2600-42 Config Error

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detected condition

B2600-42

CONFIG ERROR

(Configuration error)

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

—

Threshold

Errors are detected in the data stored in the 8CH CAN gateway (except programming data)

Diagnosis delay time

2 seconds or more

POSSIBLE CAUSE

8CH CAN gateway

FAIL-SAFE

8CH CAN gateway stops transmitting and receiving CAN communication signals between each CAN communication circuit.

Confirmation Procedure

Confirmation Procedure

  1. PERFORM DTC CONFIRMATION PROCEDURE

    With CONSULT

    1. Set the power switch ON and wait at least 2 seconds or more.

    2. Select “Self Diagnostic Result” mode of “8ch CAN GATEWAY” using CONSULT.

    3. Check DTC.

    Is DTC B2600-42 detected?

    YES >>

    Proceed to DTC Diagnosis Procedure.

    NO-1 >>

    To check malfunction symptom before repair: Intermittent Incident

    NO-2 >>

    Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

  1. PERFORM DTC CONFIRMATION PROCEDURE AGAIN

    1. Turn ignition switch ON.

    2. Erase DTC.

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

    4. Check DTC.

    Is DTC B2600-42 displayed?

    YES >>

    Replace 8CH CAN gateway. Refer to Removal and Installation.

    NO >>

    INSPECTION END

U2140-87 Can Comm Circuit

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detected condition

U2140-87

CAN COMM CIRCUIT

(CAN communication circuit)

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

CAN communication signal

Threshold

Lost communication with ECM

Diagnosis delay time

2 seconds or more

POSSIBLE CAUSE

  • Harness or connector

    (CAN communication line)

  • 8CH CAN gateway

  • ECM malfunction

FAIL-SAFE

System continue normal control.

Confirmation Procedure

Confirmation Procedure

  1. PERFORM DTC CONFIRMATION PROCEDURE

    With CONSULT

    1. Turn ignition switch ON and wait at least 2 seconds or more.

    2. Select “Self Diagnostic Result” mode of “8ch CAN GATEWAY” using CONSULT.

    3. Check DTC.

    Is DTC U2140-87 detected?

    YES >>

    Proceed to DTC Diagnosis Procedure.

    NO-1 >>

    To check malfunction symptom before repair: Intermittent Incident.

    NO-2 >>

    Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

  1. PERFORM DTC CONFIRMATION PROCEDURE AGAIN

    1. Turn ignition switch ON.

    2. Erase DTC.

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

    4. Check DTC.

    Is DTC “U2140-87” detected?

    YES >>

    Perform trouble diagnosis procedure for CAN communication system. Refer to Interview Sheet.

    NO >>

    INSPECTION END

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