OBD-II Code
P1260
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$120–$750
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
$120 (replace CR2032 + key reprogram) to $750 (ignition cylinder + transceiver coil + two-key reprogram at dealer).
P1260 in the Ford definition is a PATS (Passive Anti-Theft System) lockout code meaning the PCM was told by the PATS module / instrument cluster that the key transponder did not authenticate — the vehicle will crank but not start (or start and immediately die after 2 seconds), and the security indicator will flash a roughly 10-minute lockout countdown on the cluster before allowing another start attempt.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureP1260 in the Ford definition is a PATS (Passive Anti-Theft System) lockout code meaning the PCM was told by the PATS module / instrument cluster that…
P1260 in the Ford definition is a PATS (Passive Anti-Theft System) lockout code meaning the PCM was told by the PATS module / instrument cluster that the key transponder did not authenticate — the vehicle will crank but not start (or start and immediately die after 2 seconds), and the security indicator will flash a roughly 10-minute lockout countdown on the cluster before allowing another start attempt.
Cheapest-first ladder
- Read PATS-specific data on a capable scan tool (Forscan is gold-standard for Ford PATS work) — it'll show whether the transceiver coil around the ignition lock cylinder is seeing the key, whether the key ID matches programmed keys, and the lockout-timer state.
- Try the spare key — if the spare starts and the primary key won't, the primary transponder is dead and needs reprogramming (most 1996-2014 Fords require two working keys to self-program a third, otherwise dealer/locksmith with PATS-capable tool).
- Inspect the transceiver coil — the ring antenna around the ignition lock cylinder is fragile and breaks internally; symptom is intermittent no-start that gets worse in cold.
- On modern Focus / Fusion / Escape with key-fob start, check the fob battery — a dying CR2032 doesn't trigger a low-battery warning but does cause PATS lockout. Don't reflash the PCM or attempt to clear the code by power-cycling the battery — Ford PATS will set permanent inhibit flags on multiple failed authentication attempts that require dealer-level re-flash with a security access token, not a generic OBD clear; reading KAM for prior unauthorized-tune flags is also worth doing because some chip-tuner devices disable the PATS handshake and leave the module permanently misaligned.
Vehicle-specific patterns1996-2014 Ford Mustang is the canonical P1260 — the ignition lock cylinder and the transceiver coil around it both wear out (the lock cylinder physic…
- 1996-2014Ford Mustang is the canonical P1260 — the ignition lock cylinder and the transceiver coil around it both wear out (the lock cylinder physically, the coil wire breaks internally from steering-column vibration), and Mustangs in track / autocross service see this fail by 80k miles; the fix is a lock cylinder + coil ring + sometimes both keys reprogrammed.
- 2000-2011Ford Focus throws P1260 most commonly from a dying key-fob battery on the integrated-fob models — replace the CR2032 and the lockout clears after the 10-minute timer.
- 2003-2011Crown Vic / Grand Marquis / Town Car (Panther) sees P1260 in police-fleet use from transceiver coils that wear from key-on-a-chain weight.
- 2008-2014Ford F-150 with the integrated key-head transponder throws P1260 when the key body cracks and the transponder chip shifts out of antenna range.
Estimated repair$120 (replace CR2032 + key reprogram) to $750 (ignition cylinder + transceiver coil + two-key reprogram at dealer).
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