O2 Sensors
| Condition | Code | Procedure |
|---|---|---|
| At or beyond service interval | 3 | Suggest replacement to comply with vehicle's OEM recommended service intervals |
| Attaching hardware missing | C | Require replacement of hardware |
| Attaching hardware threads damaged | A | Require repair or replacement of hardware |
| Attaching hardware threads stripped (threads missing) | A | Require repair or replacement of hardware |
| Connector (Weatherpack type) leaking | A | Require repair or replacement |
| Connector broken | A | Require repair or replacement |
| Connector melted | A | Require repair or replacement |
|
NOTE:
Determine cause and correct prior to repair or replacement of part.
|
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| Connector missing | C | Require replacement |
| Contaminated | A | Require repair or replacement |
|
NOTE:
Determine source of contamination, such as engine coolant, fuel, metal particles, or water. Require repair or replacement.
|
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| Inoperative | A | Require repair or replacement. Further inspection required |
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NOTE:
Inoperative includes intermittent operation. Some components may be serviceable; check for accepted cleaning procedure.
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| Leaking | A | Require repair or replacement |
| Missing | C | Require replacement |
| Resistance out of specification | B | Require repair or replacement |
| Restricted, affecting performance | A | Require repair or replacement |
| Terminal broken | A | Require repair or replacement |
| Terminal burned, affecting performance | A | Require repair or replacement |
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NOTE:
Determine cause and correct prior to repair or replacement of part.
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| Terminal burned, not affecting performance | 2 | Suggest repair or replacement |
| Terminal corroded, affecting performance | A | Require repair or replacement |
| Terminal corroded, not affecting performance | 2 | Suggest repair or replacement |
| Terminal loose, affecting performance | B | Require repair or replacement |
| Terminal loose, not affecting performance | 1 | Suggest repair or replacement |
| Threads damaged | A | Require repair or replacement |
| Threads stripped (threads missing) | A | Require replacement |
| Wire lead conductors exposed | B | Require repair or replacement |
| Wire lead corroded | A | Require repair or replacement |
| Wire lead open | A | Require repair or replacement |
| Wire lead shorted | A | Require repair or replacement |