Rear Heated Oxygen Sensor - Left Bank

NOTE: For Overall Function Check, refer to DTC 0708 - (P0156) in "Diagnostic Trouble Code Charts".

COMPONENT INSPECTION
Rear heated oxygen sensor heater




1. Check resistance between terminals (4) and (1).

Resistance: 2.3 - 4.3 Ohms at 25°C (77°F)




2. Check continuity.

If NG, replace the rear heated oxygen sensor.

CAUTION: Discard any heated oxygen sensor which has been dropped or undergone shocks; use a new one.