| DTC Strategy |
- Electrical check - Check symptoms related to lambda sensor open circuit
|
- Poor connection or damaged harness
- Open in HO2S control circuit (Vg)
- Front HO2S
|
| Enable Condition |
- Upstream HO2S operative readiness is detected
- Battery voltage is between 11V and 16V
|
| Threshold Value |
- Reference virtual ground circuit open (Vg)
- Pump voltage (Vip) is 1.2V greater than virtual ground voltage (Vg) and nernst voltage (Vn) is 1.2V greater than virtual ground voltage (Vg)
- Pump voltage (Vip) is 1.2V lower than virtual ground voltage (Vg) and nernst voltage (Vn) is 1.2V lower than virtual ground voltage (Vg)
|
| Diagnostic Time |
|
| MIL ON Condition |
|