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Home >> Mazda >> 2003 >> B4000 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1260: Anti-Theft System >> Diagnostic Procedures
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Diagnostic Procedures

  1. Check All Other Passive Anti-Theft (PATS) DTCs -  Repair all other PATS DTCs before repairing DTC P1260. See SELF-DIAGNOSTIC SYSTEM in appropriate IMMOBILIZER SYSTEM - PASSIVE ANTI-THEFT SYSTEM - B2300, B3000 & B4000 article in ACCESSORIES & EQUIPMENT. After all other PATS DTCs have been diagnosed, go to next step.
  2. Check For Other Powertrain DTCs -  Repair all other powertrain DTCs before repairing DTC P1260. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  . After all other powertrain DTCs have been diagnosed, go to next step.
  3. Attempt To Start Engine -  Complete Keep Alive Random Access Memory (KAM). Reset to clear DTC P1260. This reset initializes PCM to communicate with PATS. Cycle ignition key from OFF to ON (RUN) 3-5 times for at least 3 seconds. This initializes PCM and anti-theft system on certain applications. Attempt to start engine. If engine starts, problem is intermittent. For intermittent no start or stall conditions, verify scan tool to PCM communication during concern. If PCM communication error occurs, possible causes are:
    • Loss of PWRS or GNDS to PCM.
    • Faulty PCM PWR relay.
    • Faulty EEC PWR diode.
    Repair as necessary and return vehicle to customer. If engine does not start, DTC P1260 is not cause of no start condition. See TROUBLE SHOOTING - NO CODES article and BASIC DIAGNOSTIC PROCEDURES article.
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