Nissan Sentra B18 (2020-2025) Service Manual: Main Line Between Abs and M&a Circuit

Nissan Sentra B18 (2020-2025) Service Manual / Electrical & Power Control / Lan System :: Can / Dtc/circuit Diagnosis / Main Line Between Abs and M&a 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 (connector side and harness side).
  - Harness connector E4
  - Harness connector M2
Is the inspection result normal?
YES >>
GO TO 2.
NO >>
Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the following harness connectors.
- ABS actuator and electric unit (control unit)
- Harness connectors E4 and M2

Check the continuity between the ABS actuator and electric unit (control unit) harness connector and the harness connector.

ABS actuator and electric unit (control unit) harness connector		Harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
E33	11	E4	55G	Existed
	10		54G	Existed

Is the inspection result normal?

YES >>

GO TO 3.

NO >>

Repair the main line between the ABS actuator and electric unit (control unit) and the harness connector E4.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the connector of combination meter.
Check the continuity between the harness connector and the combination meter harness connector.

Harness connector		Combination meter harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M2	55G	M24	18	Existed
	54G		19	Existed

Is the inspection result normal?

YES (Present error) >>

Check CAN system type decision again.

YES (Past error) >>

Error was detected in the main line between the ABS actuator and electric unit (control unit) and the combination meter.

NO >>

Repair the main line between the harness connector M2 and the combination meter.

Malfunction Area Chart

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