DTC P2231 Ho2S Signal Circuit Shorted To Heater Circuit (Bank 1/Sensor 1): DTC Detecting Condition
DTC P2231 DETECTING CONDITION TABLE
| Item |
Detecting Condition |
Detecting Condition |
| DTC Strategy |
- Sensor signal shorted to Heater circuit - Compare Lambda sensor signal with Lambda model
|
- Short in heater control circuit
- Poor connection or damaged harness
|
| Enable Conditions |
- No lambda controller stop mode
- Stable driving condition
- Exhaust temperature mode > 400°C (752°F)
- No relevant failure
- Amplitude of forced lambda stimulation < 0.05
- Period time of forced lambda stimulation < 2.55 sec.
- 11V < Battery voltage < 16V
|
| Threshold Value |
- 50 heater coupling detected cycles during 100 cycles of heating frequency
|
| Diagnostic Time |
|
| MIL On Condition |
|