Pending Stored And Permanent Obd Codes Explained
Pending, stored (sometimes labelled current or confirmed) and permanent are distinct OBD fault-code status categories. Each label tells you how the module is classifying a monitored issue; none of them, on their own, proves a failed part or a completed repair.
Direct comparison: pending, stored/current and permanent
| Status | What it typically indicates | What it does not prove |
|---|---|---|
| Pending | A monitor has seen a condition that may mature into a stored fault if it repeats under the required conditions. | That the issue is harmless, finished or already repaired. |
| Stored / current / confirmed | The module has recorded a fault that met its criteria for storage and may illuminate a warning lamp. | Exactly which component to replace without further testing. |
| Permanent | An emissions-related fault record that ordinary diagnostic clearing does not erase; it usually clears only after the module verifies repair under its own monitors. | That the fault is still active at this exact second, or that you can always wipe it manually. |
Exact on-tool labels can vary. Preserve the wording your scanner shows, even when everyday UK English prefers “stored” over “confirmed”.
What each label does — and does not — establish
Status categories are diagnostic leads. A pending code can matter if symptoms are already present. A stored code still needs verification against freeze-frame, live data and inspection. A permanent code is not a licence to ignore the vehicle; it is a retained emissions record with different erase rules.
- Do not call a pending code harmless.
- Do not treat a permanent code as automatic proof the fault is active right now.
- Do not equate any status with a failed sensor or actuator without further evidence.
Code descriptions from a scan tool remain leads; the required repair should precede clearing.
Warning lamps and code status are related, not interchangeable
A malfunction indicator lamp (MIL) or other warning lamp can appear alongside stored emissions faults, but lamp behaviour and code status are not the same data field. A lamp may be off while pending or historical information still exists. A lamp may be on while you are still deciding whether a code is intermittent.
Read both: the lamp state you can see on the dashboard, and the status labels on the scan report. Then record mileage, conditions and symptoms before changing anything.
What changes after a repair or a code-clear action
After a genuine repair, a normal clear command may remove stored and pending information on many tools, while permanent emissions codes follow stricter module-controlled erase rules and are not removed by ordinary diagnostic clearing. There is no universal drive-cycle stopwatch that fits every UK vehicle; monitors re-run on their own terms.
- Repair the cause first.
- Clear only the statuses your procedure and tool allow after that repair.
- Rescan and, where relevant, road-test under similar conditions.
- Expect permanent records to remain until the vehicle’s own monitors pass.
Vehicle-specific terminology and when to escalate
Menus may say “stored”, “confirmed”, “current”, “pending” or “permanent” depending on the vehicle and tool software. If labels conflict with a handbook or service information, keep screenshots and escalate rather than forcing a clear.
Seek professional diagnosis when safety systems are involved, when permanent codes persist after a careful repair attempt, or when you cannot confirm the correct manufacturer definition for the code family.
Next step and FAQ
To read status-aware DTC reports on supported systems, check the TOPDON ArtiDiag600S product details, and verify coverage for your car before purchase. Continue with freeze frame data explained UK and generic vs manufacturer-specific fault codes if you are building a complete pre-repair record.
Is a pending code safe to ignore?
No. Pending means a monitor flagged a condition; ignore it only if a qualified process says it is irrelevant to the symptom — not by default.
Can I always erase a permanent code with a scanner?
No. Permanent emissions-related codes are typically not erased by ordinary diagnostic clearing and rely on the module verifying the repair.
Does “stored” mean I must replace a part today?
No. Stored status means the module recorded a fault meeting its criteria. Confirm the cause before parts are replaced.
Why does my tool use different words from this article?
Vehicle and software labels vary. Keep the exact on-screen wording in your notes and compare it with manufacturer service information.