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 HARNESS CONTINUITY (OPEN CIRCUIT)

Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
- ECM
- Sonar control unit
- Front air control

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

Sonar control unit harness connector		Front air control harness connector		Continuity
Connector No.	Terminal No.	Connector No.	Terminal No.
M114	5	M132	1	Existed
	6		17	Existed

Is the inspection result normal?

YES

Check CAN system type decision again.

YES

Error was detected in the main line between the sonar control unit and the front air control.

Repair the main line between the sonar control unit and the front air control.