| DTC Strategy |
- Compares the current that is passing through the O2 Heater to a low limit
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- Poor connection
- Open circuit
- HO2S(B1/S2)
- PCM
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| Enable Conditions |
- Engine running greater than 60 sec.
- Minimum heater duty cycle greater than 0.18%
- Max. duty cycle - min. duty cycle less than 0.05%
- Heater duty cycle state reached Steady State
- No disabling faults present = False
- Conditions met for enough time greater than 5 sec. or equal to 5 sec.
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| Threshold Value |
- Filtered heater current less than threshold value 0 = 0.02002, 12.5 = 0.02002, 25 = 0.03003, 37.5 = 0.06006, 50 = 0.08496, 62.5 = 0.12, 75 = 0.15002, 87.5 = 0.17505, 100 = 0.19995
|
| Diagnostic Time |
- 20 test failures within a 40 test samples. Continuous monitoring every 125 ms.
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| MIL On Condition |
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