Code Enable Criteria
WARNING: This page is about a different car, the 2002 Isuzu Rodeo Sport and 2002 Isuzu Rodeo. 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 related DTCs.
- Intake air temperature is less than 90°F (32°C) at start-up.
- Engine coolant temperature is less than 90°F (32°C) at start-up.
- Intake air temperature and engine coolant temperature are within 44°F (7°C) of each other at start-up.
- Engine has been running for 120 seconds or more.
- Ignition voltage is between 11-16.6 volts.
- Average calculated air flow is less than 25 g/second during sample period.
- Throttle angle is less than 40 percent.
- Bank 1 HO2S-1 voltage does not change more than 148 mV from bias voltage (between 400 and 500 mV) for a longer amount of time than it should. Maximum amount of time to come up to operating range is 240 seconds. Warm-up time depends on engine coolant temperature and intake air temperature at start-up. From a cold start to a maximum time of 176 seconds determined by table value.