Possible car alarm problems?

2001 MAZDA MILLENIA
122,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
NEPHALIMTEARS
  • MEMBER
  • 26 POSTS
CAR WON'T RUN WITH OUT AN OBD PLUGGED IN
Dec 14, 2010 at 2:08 PM
Advertisement
Avatar
KHLOW2008
  • CAR REPAIR CONTRIBUTOR
  • 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.
Dec 15, 2010 at 2:17 PM
Avatar
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!
Dec 15, 2010 at 3:04 PM
Avatar
KHLOW2008
  • CAR REPAIR CONTRIBUTOR
  • 41,814 POSTS
Were all the fuses checked?
Dec 15, 2010 at 10:53 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.