| DTC Strategy |
- Pumping signal inspection
|
- Poor connector connection
- Open to oxygen sensor pumping current
- Upstream HO2S
|
| Case 1 |
Enable Conditions |
- HO2S ceramic temperature greater than 640°C (1184°F)
- Battery voltage is 10 to 16V
- Not detect open and short DTC (P013100, P015100, P013200, P015200)
- ASIC circuit off
|
| Threshold Value |
|
| Case 2 |
Enable Conditions |
- HO2S ceramic temperature greater than 640°C (1184°F)
- Battery voltage is 10 to 16V
- Not detect open and short DTC (P013100, P015100, P013200, P015200)
- Detect high voltage of HO2S
- HO2S signal transmission failure
|
| Threshold Value |
- If voltage changes of nernst voltage and ground are 75 times less than pumping ampere
- If voltage changes of pumping ampere and ground are 75 times greater than pumping ampere
|
| Diagnostic Time |
|
| MIL ON Condition |
|