Pathfinder 4WD V6-3.3L (VG33E) (1996)
3. Perform "Diagnostic Test Mode II (Self-diagnostic results)" with ECM.
COMPONENT INSPECTION
Check resistance between terminals (3) and (1).
Resistance: 2.3 - 4.3 ohms at 25°C (77°F)
Check continuity between terminals (2) and (1), (3) and (2).
Continuity should not exist.
If NG, replace the front heated oxygen sensor.
CAUTION: Discard any heated oxygen 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.
DTC 1002 Rear Heated Oxygen Sensor Heater (LB)
System Description
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the rear heated oxygen sensor heaters corresponding to the engine speed.
Operation
OPERATION