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 heater performance. |
•
Related fuse blown or missing
•
Heater control circuit open or short
•
Power supply circuit open or short
•
Poor connection or damaged harness
•
Faulty HO2S | |
Enable Conditions | Case 1 |
•
Heater PWM > 1.56%
•
Sensor operative readiness (Tip temp.>640°C(1,184℉) or 18sec. heating time after Dew-point detection) | |
Case 2 |
•
11 ≤ Battery voltage ≤ 16V | ||
Threshold value | Case 1 |
•
Front HO2S tip temp. : < 755°C(1,391℉) or > 900°C(1,652℉) | |
Case 2 |
•
Error bit information from HW circuit | ||
Diagnosis Time | Case 1 |
•
Temp. < 640°C(1,184℉) : 1sec.
•
640°C(1,184℉) < Temp. < 755°C(1,391℉) : 10sec.
•
900°C(1,652℉) < Temp. : 10sec. | |
Case 2 |
•
5 sec. | ||
MIL On Condition |
•
2 Driving Cycles | ||
