| DTC Strategy |
- Evaluate O2 sensor element temperature by measuring the element resistance
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- Fuse blown or missing
- Heater control circuit open or short
- Power supply circuit open or short
- Poor connection or damaged harness
- Faulty upstream HO2S
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| Enable Conditions |
- No relevant failure
- Battery voltage between 11 - 16V
- Sensor operative readiness (tip temperature > 630°C (1, 166°F) or 18s heating time after dew-point detection)
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| Threshold Value |
- Front HO2S tip temperature: [660°C (1, 220°F)] or [900°C (1, 652°F)]
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| Diagnostic Time |
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| MIL ON Condition |
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