Component Inspection

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 AIR FUEL RATIO (A/F) SENSOR 1

Turn ignition switch OFF.
Disconnect A/F sensor 1 harness connector.

Check resistance between A/F sensor 1 terminals as follows.

Courtesy of NISSAN NORTH AMERICA, INC.

+	-	Resistance (Ohm)
A/F sensor 1
Terminal
1	2	1.80 - 2.44 [at 25 deg.C (77 deg.F)]
	3	INF. (Continuity should not exist)
	4
2	3
	4

Is the inspection result normal?

YES

INSPECTION END

GO TO 2.

REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace malfunctioning air fuel ratio (A/F) sensor 1. Refer to Exploded View .
CAUTION:
- Discard any A/F sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.
- Before installing new A/F sensor, clean exhaust system threads using Heated Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved Anti-seize Lubricant (commercial service tool).
INSPECTION END