Component Inspection

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THE DEF DOSING VALVE RESISTANCE
Measure the resistance between the DEF dosing valve pins at the DEF dosing valve.

Is the resistance between 11 and 18 ohms?

YES

GO TO 2 .

NO

Replace the DEF dosing valve. Refer to Exploded View .
CHECK DEF DOSING VALVE FOR A SHORT TO GROUND
Measure the resistance between the aftertreatment DEF dosing valve SIGNAL (pin 1) and the metal case of the aftertreatment DEF dosing valve.

Is the resistance above 100 Kohms?

YES

Inspection End.

NO

Replace the DEF dosing valve. Refer to Exploded View .