| DTC Strategy |
|
- Poor connector connection
- Open in upstream O2 sensor pumping current trim circuit (VRC)
- Faulty upstream O2 sensor
|
| Enable Condition |
- Battery voltage is between 9V and 16V
- Primary O2 sensor heating duration (after e point end) is more than 70 seconds
|
| Threshold Value |
- Measured sensor resistor is more than 4644Ω
- Difference between pumping current circuit (Vip) voltage and virtual ground (Vg) voltage is less than 1.2V
- Difference between nernst voltage (Vn) voltage and virtual ground (Vg) voltage is more than 1.2V
|
| Diagnostic Time |
|
| MIL ON Condition |
|