Condition for fault identification

Test condition:

The fault is recognized when the sensor voltage is less than 0.2 V.

Potential problem source(s):

• Defect in wiring harness to pre-catalyst oxygen sensor 2
• Oxygen sensor 2 forward of catalytic converter defective
• Defective DME

Terminal condition: none

Voltage condition:

• None

Temperature condition:

• Engine temperature > 85 °C

Time condition:

• None

Other conditions:

• Engine on