DTC P0135 is a pending code. The root cause will be confirmed by P0030, P0606, P2243, P2251.
Item | Detecting Condition | Possible Cause | |
DTC Strategy |
•
Evaluate O2 sensor heate performance- pending DTC, root cause will be confirmed by P0030,P0606,P2243,P2251 | 1. Poor connection 2. Open or Short to ground in power circuit 3. Damaged or corroded terminals 4. HO2S(S1) | |
Enable Conditions | Case1 |
•
Engine speed during engine start (engine operating state out of start) > 640...960rpm depending on start ECT
•
Upstream O2 sensor pre-heating phase finished
•
Upstream O2 Sensor operative readiness detected : [Upstream O2 Sensor tip temperature > 630°C or Time elapsed after dew-point exceeded > 30sec]
•
11V < Battery voltage < 16V | |
Case2 |
•
11V < Battery voltage < 16V | ||
Threshold Value | Case1 |
•
Upstream O2 sensor tip temperature < 680°C or Upstream O2 sensor tip temperature < 900°C | |
Case2 |
•
Error bit information from HW circui | ||
Diagnostic Time | Case1 |
•
O2 tip temp <650°C : 1sec, (650°C<O2 tip temp<680°C) or >900°C : 10sec. | |
Case2 |
•
5sec | ||
MIL ON Condition |
•
2 driving cycles | ||
※ S1 : upstream oxygen sensor / S2 : downstream oxygen sensor
