Code Enable Criteria
WARNING: This page is about a different car, the 2002 Isuzu Trooper. However, it is still accessible from the selected car via links, so may be relevant.
Following conditions must be met for DTC diagnostic test to run:
- No active IAT or ECT DTCs are present.
- Engine is running.
- Vehicle speed is more than 5 MPH.
- Intake air temperature is more than 14°F (-10°C).
- Start-up engine coolant temperature is between 14°F (-10°C) and 82°F (28°C).
- For a warm engine, intake air temperature is more than 50°F (10°C), engine coolant temperature sufficient to allow closed loop operation 122°F (50°C) is not achieved within 2 minutes of start-up. For a cold engine, intake air temperature between 19.4°F and 50°F (-7°C and 10°C), engine coolant temperature sufficient to allow closed loop operation 122°F (50°C) is not achieved within 10 minutes of start-up.
- Above condition fails 20 consecutive times.