Theft Detected -- Vehicle Immobilizer (Ford) / VATS Fuel Enable Circuit (GM)
What does P1260 mean?
The P1260 code means the vehicle's onboard diagnostic system has detected: Theft Detected -- Vehicle Immobilizer (Ford) / VATS Fuel Enable Circuit (GM). This is a critical severity code.
Common Symptoms
- Engine cranks but will not start
- Theft or security indicator light flashing
- Fuel system disabled by security system
- Vehicle may start briefly then stall
- Anti-theft system activated
Probable Causes (Ranked by Likelihood)
- Faulty key transponder or PATS key Very High
- Failed PATS transceiver module (Ford) High
- Damaged key or worn ignition lock cylinder Moderate
- PCM to security module communication failure Moderate
- Aftermarket remote starter interfering with security Low
Step-by-Step Diagnostic Procedure
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Try starting with a different programmed key
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Check the security indicator light -- flashing means the key is not recognized
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Scan for DTCs in the anti-theft and PCM modules
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Check the PATS transceiver ring around the ignition lock cylinder
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Verify no aftermarket devices are interfering with the security system
Frequently Asked Questions
Can I drive with code P1260?
No. The vehicle security system has disabled the fuel system because it detected an unauthorized start attempt or key failure. The engine will crank but not start.
What causes P1260 on Ford?
The PATS (Passive Anti-Theft System) has detected a key that it cannot verify. A worn or damaged key, failed PATS transceiver, or aftermarket remote starter are the most common causes.
Can I bypass the anti-theft system?
Bypassing the anti-theft system is not recommended for security reasons. A locksmith with PATS programming capability or a Ford dealer can program new keys and reset the system. Some aftermarket remote starters include a PATS bypass module.