Practical checks and shop questions for Stored/pending/permanent DTCs and readiness; save evidence before replacing parts.
CHECK SOON
This is a non-invasive owner checklist, not an OEM repair procedure or permission to drive.
Source check and limits
This reference supports the stated topic only. Model, model year, equipment, current rule or individual vehicle conditions may differ; check the original source before acting.
Read the California Bureau of Automotive Repair original: OBD test reference Source date: document date not recorded; research checked: 2026-11-01.
Save the evidence first
- Before/after scan reports
- Pending/confirmed/permanent status
- Monitor readiness
- Applicable inspection jurisdiction
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Safe owner checks
- Keep the pre-repair report.
- Use read-only scans to track status; do not erase evidence to prepare for inspection.
Questions for a qualified technician
- Has the underlying fault been verified repaired?
- What exact monitor-enabling conditions and jurisdiction rules apply?
Common wrong turns
- Permanent codes are not erased by simply disconnecting a battery or using the clear button.
- California acceptance criteria are not a nationwide rule.
- Tesla service DTC clearing is not the same as a generic emissions-code reset.
Confirm the repair
- Use official service/inspection requirements; no guaranteed number of miles or trips is provided.
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Sources and scope
- California Bureau of Automotive Repair — OBD test reference Document: date not recorded · Research checked: 2026-11-01
- Ford — Gasoline OBD System Operation Summary MY 2024–2025 Document: 2024-04-16 · Research checked: 2026-11-01
- Tesla — Diagnostic Trouble Codes versus Alerts — Model Y service manual Document: 2026-02-20 · 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.
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