General Information: DTC Detecting Condition
DTC DETECTING CONDITION CHART
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
- Slow response (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 |
- Downstream O2 sensor readiness detected
- Downstream O2 sensor pre-heating phase finished
- 400°C (752°F)< Catalyst temperature model
- 0.6V< Downstream O2 sensor signal at entry into fuel cutoff
- No relevant failure
- 11V < Battery voltage < 16V
|
| Threshold Value |
- Ratio > 1 (maximum allowed switching time = 300 msec.)
|
| Diagnostic Time |
- 3 valid fuel cut-off phases
|
| Mil On Condition |
|