Possible car alarm problems?

Tiny
NEPHALIMTEARS
  • MEMBER
  • 2001 MAZDA MILLENIA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 122,000 MILES
CAR WON'T RUN WITH OUT AN OBD PLUGGED IN
Tuesday, December 14th, 2010 AT 2:08 PM

3 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
It could be an open circuit, missing power supply or grounding circuit fault.

Check the Diagnostic Link for battery voltage to terminal # 16.
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Wednesday, December 15th, 2010 AT 2:17 PM
Tiny
NEPHALIMTEARS
  • MEMBER
  • 26 POSTS
When the OBD is unplugged the heat will be on full blast, no power to the clock and it will turn over but not start. My mechanic traced it back to the car alarm due to the fact when the OBD is unplugged the horn will honk every 30 seconds and the lights will flash. It's crazy!
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Wednesday, December 15th, 2010 AT 3:04 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Were all the fuses checked?
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Wednesday, December 15th, 2010 AT 10:53 PM

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