Anti-theft on no start

Tiny
JOHNNY LINDSEY
  • MEMBER
  • 2009 FORD E-SERIES VAN
  • 6.0L
  • V8
  • TURBO
  • 2WD
  • AUTOMATIC
  • 106,000 MILES
The van has no pats keys but anti theft light is flashing with no start.
Do you
have the same problem?
Yes
No
Friday, January 31st, 2020 AT 6:08 AM

1 Reply

Tiny
STEVE W.
  • EXPERT
This usually indicated a communication failure in the CAN network on the vehicle. The catch is that in order to test for that failure you need a way to talk to the ECM and instrument cluster on that network as those are the parts involved even without the PATS option. The tools needed are a break out box and an oscilloscope to test the CAN signals and see what module is causing the problem.
Even without the PATS keys the rest of the anti-theft system is still there. You might try a reset on it to see if it still sees the door locks. Try locking the drivers door with the key, wait 5 minutes and unlock it. On most non-pats that will cycle the system from armed to off. If there is a CAN issue this won't work. Step 2 would be to disconnect the battery for 5 minutes and see if it resets. Again if it's a CAN issue or a fault in the instrument panel this will not help.
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Friday, January 31st, 2020 AT 12:39 PM

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