flashing theft light
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Freshman User
Joined: Feb 2006
Posts: 38
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From: OH
flashing theft light
Need some help...My red theft light flashes continuously after the expy starts. After about one minute it cycles through two slow flashes then five rapid flashes. It eventually stops. The truck runs fine. Also, three days ago my odometer went out for a few seconds and then came back on. It did this two years ago and I re-soldered the bad connection on the back of the instrument panel (as outlined in this forum). I have not had a problem with the odometer since. Idon't know if the two situations are related. Any thoughts? Should I run a HEC dealer test?
Junior User
Joined: Jul 2006
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From: Only the govt. knows
I wouldn't do what madson is suggesting. What if you can't start your truck due to the glitch in the anti-theft after you reconnect your battery? I would find out exactly what that code means before trying random "solutions?"
Post Fiend
Joined: Jun 2003
Posts: 5,983
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^As opposed to having the truck not start at all which should be the case when the theft light is flashing?
If you are really dependent on the vehicle starting each and every time, I'd take it to a dealer.
If you are really dependent on the vehicle starting each and every time, I'd take it to a dealer.
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Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
It's likely a network communications glitch between the instrument cluster and the PCM. Either may be the source of the fault.
A dealer has the proper equipment to diagnose and repair.
FWIW, you're lucky (so far) that it even starts with this type of issue.
Steve
A dealer has the proper equipment to diagnose and repair.
FWIW, you're lucky (so far) that it even starts with this type of issue.
Steve
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Freshman User
Joined: Feb 2006
Posts: 38
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From: OH
Thanks for the replies. It is greatly appreciated. One more piece of info. The flashing theft light doesn't always happen. It's inconsistent. I've been trying to find a pattern (cold v warm engine, cold v. warm day....).
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Freshman User
Joined: Feb 2006
Posts: 38
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From: OH
another update..this morning my car would not start. Lights flashed and it sounded like several relays were clicking. I tried my second set of keys...no go. I disconnected the battery, waited, and tried again. Nothing. Pushed it out of the garage (great workout!) and towed to dealer. The result.........a bad battery cable harness and $300.
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