Anti-Theft System Signal Engine Disabled
2001-2011 Mazda Tribute 2.3L I4
Description
The anti-theft immobilizer system has detected an unauthorized start attempt and has disabled the engine. The PCM will not allow fuel injection or ignition until proper key authentication is received.
Symptoms
- Engine cranks but will not start
- Security light flashing on dashboard
- No fuel delivery or spark
- Engine starts then immediately dies
Common Causes
- Key transponder not recognized
- Faulty immobilizer antenna around ignition
- Incorrect or damaged key
- Immobilizer module failure
- Low key battery (push-button start systems)
Diagnostic Steps
- Try a second programmed key
- Check security indicator light behavior
- Inspect immobilizer ring antenna around ignition cylinder
- Verify key programming status with scan tool
- Check key battery if applicable
Repair Notes
Try a different programmed key first; reprogram keys or replace the immobilizer antenna if faulty.
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
P1260 on Other Vehicles
Common Questions
What does code P1260 mean on a 2001-2011 Mazda Tribute?
P1260 stands for "Anti-Theft System Signal Engine Disabled". The anti-theft immobilizer system has detected an unauthorized start attempt and has disabled the engine. The PCM will not allow fuel injection or ignition until proper key authentication is received.
What are the symptoms of P1260 on a Mazda Tribute?
Common symptoms of P1260 include: Engine cranks but will not start, Security light flashing on dashboard, No fuel delivery or spark, Engine starts then immediately dies.
What causes P1260 on a 2001-2011 Mazda Tribute?
Common causes of P1260 include: Key transponder not recognized, Faulty immobilizer antenna around ignition, Incorrect or damaged key, Immobilizer module failure, Low key battery (push-button start systems).