Understand the conditions in manufacturer document T-SB-0107-14, related codes, current VIN checks and why it is not a repair or free-coverage guarantee.
This manufacturer communication describes a conditional service context. It does not establish current VIN eligibility, an open recall, warranty payment or a repair for your car. Qualified safety and source review remains pending.
This historical communication is conditional. The current revision, VIN/build eligibility, measured diagnosis and any warranty or recall decision are not established here. Ask the manufacturer or a qualified shop to check the complete current document.
Read the Toyota original: T-SB-0107-14 · Check open recalls by VIN at NHTSA Source date: 2014-08-21; research checked: 2026-11-01.
What document this is
T-SB-0107-14 is recorded as service bulletin in the supplied research. Its original publisher, date and link are listed below. The current revision and exact vehicle eligibility need independent confirmation.
Conditions recorded in the communication
- Listed engine/model-year scope; Corolla production VIN conditions.
All relevant conditions, including engine, model year, build date, symptom, companion codes and measured evidence, must be compared with the full original document. A model name or code match alone is insufficient.
What the source says a shop should consider
Investigate cylinder compression/exhaust-valve sealing as directed, rather than treating the code as proof of a failed air/fuel sensor.
This is a short source summary for discussion with a qualified shop, not a step-by-step repair instruction. Do not order a component based on this bulletin reference or attempt high-voltage, braking, transmission or calibration work from this page.
Useful owner next step
Ask whether compression/leak-down diagnosis is warranted for the exact engine.
Save the warning message, all code statuses and freeze frame when safe. Ask the manufacturer or dealer to check the latest document, your VIN and any applicable campaign before paying for a repair.
Codes mentioned in this source
A code appearing here may have a broader meaning elsewhere. Match its full raw form and the communication’s symptom gate.
Sources and scope
- Toyota — T-SB-0107-14 Document: 2014-08-21 · Research checked: 2026-11-01
Research snapshot: 2026-11-01. Source documents may have newer revisions. Verify current instructions and VIN eligibility with the manufacturer.