General Information: DTC Detecting Condition
WARNING: This page is about a different variant/trim than selected.
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
|
- Related fuse blown or missing
- Heater control circuit open or short
- Power supply circuit open or short
- Poor connection or damaged harness
- Faulty HO2S
|
| Enable Conditions |
- O2 sensor pre-heating phase finished (dew point passed)
- No relevant failure
- Coolant temperature drop since the last engine stop > 25°C (77°F)
- 10V< Battery voltage <16V
- 3.5%< O2 sensor heater control duty < 96.5%
- O2 sensor operative ready (to ensure no open circuit failure present)
|
| Threshold Value |
- Too slow O2 sensor tip-temperature increase after Start causing too low catalyst diagnosis result (O2 Sensor Heater Power < 20% of Nominal Heater Power)
|
| Diagnostic Time |
|
| Mil On Condition |
|