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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1406 (Anti-Theft System - Passive Anti-Theft System (Pats)) >> Diagnostic Tests >> Anti-Theft >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Some Fusion and Milan vehicles built with a 2.3L engine may exhibit an intermittent crank no start along with a PATS light flashing during cranking and various codes stored in memory. The root cause has been found to be related to radio interference due to a shopping cart anti-theft device installed at some store parking lots. Refer to all Technical Service Bulletins (TSB) that pertain to the concern and follow the procedure(s) outlined.
Symptom Chart

Condition Possible Sources Action
  • No communication with the instrument cluster (IC)
  • Fuse(s)
  • Wiring, terminals or connectors
  • IC
  • The anti-theft indicator is always/never on
  • IC
  • The vehicle does not start
  • Starting system concern
  • PATS concern
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