Detection Condition

PCM monitors input voltage from right or left rear HO2S when following monitoring conditions are met. If input voltage from sensor never exceeds 0.55 volt for 42 seconds, PCM determines sensor circuit is not activated.

Monitoring Conditions:

• Drive Mode 3
• Following conditions are to be met:
  1. Engine speed is 1500 RPM or more
  2. Engine coolant temperature is 158°F (70°C) or more.

This is a Continuous Monitor (CM). MIL illuminates if PCM detects malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for same malfunction has been stored in PCM. PENDING CODE is available if PCM detects malfunction condition during first drive cycle. FREEZE FRAME DATA is available. DTC is stored in PCM memory.