Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. 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 C108
  - Harness connector C23
  - Harness connector C20
  - Harness connector E51
  - Harness connector E152
  - Harness connector M31
  - Harness connector M40
  - Harness connector B69
Is the inspection result normal?

YES

GO TO STEP 2 .

NO

Repair the terminal and connector.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the harness connector C108 and C23.

Check the continuity between the harness connectors.

Connector No.	Terminal No.		Continuity
C108	1	6	Existed
C108	7	12	Existed

Is the inspection result normal?

YES

GO TO STEP 3 .

Repair the main line between the harness connector C108.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the harness connector C20 and E51.

Check the continuity between the harness connectors.

Harness connector		Harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
C23	6	C20	1	Existed
	12		7	Existed

Is the inspection result normal?

YES

GO TO STEP 4 .

Repair the main line between the harness connector C23 and C20.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the harness connector E152 and M31.

Check the continuity between the harness connectors.

Harness connector		Harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
E51	1	E152	81G	Existed
	7		80G	Existed

Is the inspection result normal?

YES

GO TO STEP 5 .

Repair the main line between the harness connector E51 and E152.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the harness connector M40 and B69.

Check the continuity between the harness connectors.

Harness connector		Harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M31	81G	M40	26J	Existed
	80G		16J	Existed

Is the inspection result normal?

YES

GO TO STEP 6 .

Repair the main line between the harness connector M31 and M40.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the harness connectors.

Connector No.	Terminal No.		Continuity
B69	26J	42J	Existed
B69	16J	32J	Existed

Is the inspection result normal?

YES

GO TO STEP 7 .

Repair the main line between the harness connector B69.

CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Disconnect the connector of sonar control unit.

Check the continuity between the harness connector and the sonar control unit harness connector.

Harness connector		Sonar control unit harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M40	42J	M114	5	Existed
	32J		6	Existed

Is the inspection result normal?

YES

Check CAN system type decision again.

YES

Error was detected in the main line between the side radar LH and the sonar control unit.

Repair the main line between the harness connector M40 and the sonar control unit.