DTC Information And Inspection: DTC Detecting Condition
WARNING: This page is about a different variant/trim than selected.
| Item |
Detecting Condition |
Possible Cause |
| DTC Strategy |
|
- Poor connector connection
- Faulty upstream O2 sensor signal circuit
- Faulty upstream O2 sensor
|
| Enable Condition |
Case 1 |
- 30s elapsed after upstream dew point end detected
- Fuel feedback control active
- Battery voltage is more than 11V
- Exhaust gas temperature between 480 and 800°C (896 and 1472°F)
- No injector error
- No upstream O2 sensor heater error
- Downstream O2 sensor voltage > 0.6V
|
| Case 2 |
- 30s elapsed after upstream dew point end detected
- Fuel feedback control active
- Battery voltage is more than 11V
- Exhaust gas temperature between 480 and 800°C (896 and 1472°F)
- No injector error
- No upstream O2 sensor heater error
- Downstream O2 sensor voltage is less than 0.1V
|
| Case 3 |
- 30s elapsed after upstream dew point end detected
- Fuel feedback control active
- Battery voltage is more than 11V
- Exhaust gas temperature between 480 and 800°C (896 and 1472°F)
- No injector error
- No upstream O2 sensor heater error
|
| Threshold Value |
Case 1 |
- O2 sensor voltage between 0.06 and 0.4V
|
| Case 2 |
- O2 sensor voltage between 0.06 and 1.15V
|
| Case 3 |
- Frequency of heater pulse coupling to sensor signal is higher than 5 times per every 10 heating pulses
|
| Diagnostic Time |
Case 1 |
|
| Case 2 |
|
| Case 3 |
|
| MIL ON Condition |
|