Nissan Sentra B18 (2020-2025) Service Manual: Dlc Branch Line Circuit

Nissan Sentra B18 (2020-2025) Service Manual / Electrical & Power Control / Lan System :: Can / Dtc/circuit Diagnosis / Dlc Branch Line Circuit

Diagnosis Procedure

Diagnosis Procedure

CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose connection (unit side and connector side).
  - 8CH CAN gateway
  - Data link connector
Is the inspection result normal?
YES >>
GO TO 2.
NO >>
Repair the terminal and connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect the connector of 8CH CAN gateway.

Check the resistance between the 8CH CAN gateway harness connector terminals.

8CH CAN gateway harness connector			Continuity
Connector No.	Terminal No.
M37	13	29	Existed
	14	30	Existed

Is the measurement value within the specification?

YES >>

GO TO 3.

NO >>

Repair the harness and repair the root cause (Diagnostic CAN communication circuit side).

CHECK HARNESS FOR OPEN CIRCUIT

Connect the connector of 8CH CAN gateway.

Check the resistance between the data link connector terminals.

Data link connector			Resistance (Ω)
Connector No.	Terminal No.
M22	6	14	Approx. 54 – 66

Is the measurement value within the specification?

YES (Present error) >>

Check CAN system type decision again.

YES (Past error) >>

Error was detected in the data link connector branch line circuit.

NO >>

Repair the data link connector branch line.

Vehicle Can Communication 1 Circuit

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Read first—then drive safely
FOREWORD Welcome to the growing family of new NISSAN owners. This vehicle is delivered to you with confidence. It was produced using the latest techniques and strict quality control. This manual was prepared to help you understand the operation and maintenance of your vehicle so that you ma ...