Skip the auto shop - Our mechanics make house calls

Q: Cut door trigger wire, reconnected it, and now the anti-theft is on and the car won't crank

asked by on

I have a 2010 300 touring. Checking wore locations with a buddy to install a viper alarm, the door trigger wire got cut. I used a butt clip and reconnected it and now the anti theft light comes on when i turn the key and wont crank or let me roll the windows down but can still open trunk and lock and unlock doors. I have 1 keyfob that is missing the chip inside of it. Also been fightimg cancer so low on cash and cant afford a tow and the cost of the dealership. Can i fix this?

My car has 70000 miles.
My car has an automatic transmission.

Hello, thanks for writing in. If that was the only wire cut, the butt connector may not be sufficient to attach the wires together and they may have to be soldered. Some systems watch resistance readings through the circuit and high resistance may cause a fault. Make sure the 2 pieces of wire that are attached are the same color. If you need some help with this, consider hiring an experienced technician like one from YourMechanic to go through the wiring and check the system for a possible fault code that may shed some light on the problem. Best of luck.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • Cut door trigger wire, reconnected it, and now the anti-theft is on and the car won't crank

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Is slightly excessive lifting engine noise a problem? What is the best fix for it?

Hello. Slightly excessive noise, of any kind, from the engine may be an indication of accelerated wear to the engine. Keep in mind, however, that all engines operate differently, and some will generate more noise in their normal operation than...

Q: Lack if power at 20mph

Hello there. The P0300 series of OBD-II trouble codes indicate misfire problems. The 304 and 306 codes indicate a misfire on cylinder(s) 4 and (6). You might want read this article on the P-0300 OBD-II trouble code to review possible...

Q: 2004 Cadillac srx will crank but won't start

For a sudden failure like this, I would check to see if the fuel pump has failed and check for spark at the spark plugs. If no spark, suspect that a key global sensor such as the crankshaft position sensor...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...