Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Aids
Perform this test when instructed during QUICK TEST or if directed by other test procedures. This code indicates that anti-theft system has been activated. When activated, anti-theft system will disable fuel system. To disarm anti-theft system, use key or remote keyless entry to unlock door.
- Step 1) Check For Other DTCs If any other DTCs are present, service as necessary. If no DTCs other than P1260 are present, go to next step.
- Step 2) Use key or remote keyless entry to disarm anti-theft system. Clear PCM memory. Start engine. If engine starts, testing is complete. If engine does not start, go to next step.
- Step 3) Perform QUICK TEST . If DTC P1260 is still present, fault is in anti-theft system.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.