Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. 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 E202
  - Harness connector E2
  - Harness connector E30
  - Harness connector M1
Is the inspection result normal?

YES

GO TO 2 .

NO

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the harness connectors E202 and E2.

Check the continuity between the harness connectors.

Harness connector			Continuity
Connector No.	Terminal No.
E202	21	23	Existed
	20	22	Existed

Is the inspection result normal?

YES

GO TO 3 .

Repair the main line between the harness connector E202.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the harness connector E30 and M1.

Check the continuity between the harness connectors.

Harness connector		Harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
E2	23	E30	60G	Existed
	22		61G	Existed

Is the inspection result normal?

YES

GO TO 4 .

Repair the main line between the harness connectors E2 and E30.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the connector of sonar control unit.

Check the continuity between the harness connector terminals.

Harness connector		Harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M1	60G	M187	19	Existed
	61G		20	Existed

Is the inspection result normal?

YES

Check CAN system type decision again.

YES

Error was detected in the main line between the ICC sensor and the sonar control unit

Repair the main line between the harness connector M1 and the sonar control unit.