P1260 — Last Test Failed SCC Or Theft Detected, Vehicle Immobilized

What Does P1260 Mean?

P1260 is a manufacturer-specific diagnostic trouble code: Last Test Failed SCC Or Theft Detected, Vehicle Immobilized. This code applies to BUICK, CADILLAC, CHEVY, CHRYSLER, GM vehicles. Unlike generic OBD-II codes, manufacturer-specific codes are defined by the vehicle maker and may only apply to certain makes and models.

Symptoms of P1260

⚠️ Check Engine Light (MIL) illuminated
⚠️ Last Test Failed SCC Or Theft Detected, Vehicle Immobilized not functioning as expected
⚠️ Related system may be in fail-safe mode
⚠️ Reduced engine performance

Common Causes

🔍 Faulty Last Test Failed SCC Or Theft Detected, Vehicle Immobilized
🔍 Wiring or connector issue in Last Test Failed SCC Or Theft Detected, Vehicle Immobilized circuit
🔍 Related mechanical or electrical fault
🔍 ECM/PCM issue (rare)

Frequently Asked Questions

What does P1260 mean?

P1260 indicates: Last Test Failed SCC Or Theft Detected, Vehicle Immobilized. The vehicle's computer has detected that the Last Test Failed SCC Or Theft Detected, Vehicle Immobilized is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code P1260?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with P1260 for extended periods may cause additional problems.

How much does it cost to fix P1260?

Repair costs for P1260 typically range from $80 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect Last Test Failed SCC Or Theft Detected, Vehicle Immobilized and related wiring
🔧 Replace faulty Last Test Failed SCC Or Theft Detected, Vehicle Immobilized

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P1260: Last Test Failed SCC Or Theft Detected, Vehicle Immobilized