If the average of loaded voltage is over 2.8V or the internal resistance is over 40kΩ under enable conditions, the ECM/PCM sets DTC P0136.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Voltage Range check | 1. Poor connection 2. Open in signal circuit 3. HO2S(S2) |
Enable Conditions |
•
Downstream O2 sensor operative readiness detected : [(Downstream O2 sensor Voltage < 0.25V or Downstream O2 sensor Voltage) > 0.56V & Downstream O2 sensor max heating finished 2)] or downstream exh. gas temp. model > 300°C
•
Downstream O2 sensor pre-heating phase finished
•
B+ greater than 10.7 V
•
10V < Battery voltage < 16V | |
Threshold Value |
•
0.38V < Downstream O2 Sensor Voltage < 0.48V
•
DownstreamO2 Sensor Element resistance > 60㏀ | |
Diagnostic Time |
•
30 sec | |
Mil On Condition |
•
2 driving cycles. |
※ S1 : upstream oxygen sensor / S2 : downstream oxygen sensor
