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.

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HOMESERVICE MANUALSFORD2007FOCUS SES, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSANTI-THEFT SYSTEM - PASSIVE ANTI-THEFT SYSTEM (PATS)DIAGNOSTIC TESTSANTI-THEFTSYMPTOM CHART

2007 Ford Focus SES, 4D Sedan, Standard

Symptom Chart

2007 Ford Focus SES, 4D Sedan, StandardSECTION Symptom Chart

Symptom Chart

Condition	Possible Sources	Action
No communication with the PCM	Fuse(s) Circuitry PCM	REFER to MODULE COMMUNICATIONS NETWORK article.
The anti-theft indicator is always/never on	Circuitry Instrument cluster (IC) PCM	Go to Pinpoint Test F .
The vehicle does not start	Circuitry Starter relay PCM	CYCLE the ignition. CARRY OUT the PCM self-test. If PATS DTCs are present, go to the PCM DTC CHART . If no PATS DTCs are present, REFER to the Introduction - Gasoline Engines article.

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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.