Detection Condition

If PCM detects throttle valve opening is less than 12.5 percent with engine coolant temperature more than 158°F (70°C) and Mass Airflow (MAF) sensor signal more than 88.3 gram/sec., PCM determines throttle valve is stuck closed. If PCM detects engine speed is more than 500 RPM with MAF sensor signal less than 89.3 gram/sec., PCM determines throttle valve is stuck open. This is a continuous monitor. MIL is illuminated if PCM detects malfunction in two consecutive drive cycles.