General Information: DTC Detecting Condition
DTC DETECTING CONDITION AND POSSIBLE CAUSE
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
- Switching Time check at entry in Fuel Cut-Off
|
- Leak in intake or exhaust system
- Faulty fuel system.
- Front and rear HO2S
- connections reversed.
- Poor connection or damaged harness
- HO2S contamination
|
| Enable Conditions |
- Coolant temp >74°C (165°F)
- Sensor preheating and full phase finished
- Catalyst temp. model >350°C (662°F)
- No relevant failure
- 11V < Battery voltage < 16V
- Downstream O2 sensor signal at entry in fuel cut off > 0.55V
- O2 sensor operative readiness detected
- 4.8Km/h (3MPH)<Vehicle speed<180Km/h (112MPH)
|
| Threshold Value |
- Average ratio (between measured and maximum allowed switching time at entry in fuel cut-off) > 1
|
| Diagnostic Time |
|
| MIL On Condition |
|