DTC Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

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 M78
  - Harness connector E55
Is the inspection result normal?

YES

GO TO 2.

NO

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the harness connectors M78 and E55.

Check the continuity between the data link connector and the harness connector.

Data link connector		Harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M22	6	M78	4	Existed
	14		13	Existed

Is the inspection result normal?

YES

GO TO 3.

Repair the main line between the data link connector and the harness connector M78.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

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

Harness connector		ABS actuator and electric unit (control unit) harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
E55	4	E125	41	Existed
	13		27	Existed

Is the inspection result normal?

YES

Check CAN system type decision again.

YES

Error was detected in the main line between the data link connector and the ABS actuator and electric unit (control unit).

Repair the main line between the harness connector E55 and the ABS actuator and electric unit (control unit).