Skip the auto shop - Our mechanics make house calls

Q: Security light on and can't reset it.

asked by on

I tried to reset the security by the 11 minute on and 30 seconds off three times and that didn't work. Looked it up and found several things that said it could be the passlock system turning the fuel off to the fuel rack. I hooked up a car doctor up to it and it says that there is a tire speed sensor that has an open circuit on the ABS. Will that stop my truck from starting? The truck will try to start but it dies.

My car has 250000 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. No, the speed se...

Hi, thanks for writing in. No, the speed sensor code will not stop your car from starting. It sounds like the security is still disabling the truck. You can try and leave the key in the on position for 30 minutes or until the security light goes out. This may reset the security system as well. This problem will continue until you have the security system fixed. This will have to be done by the dealer, since reprogramming is involved. Another possibility is the fuel pump has gone up and can’t apply fuel and fuel pressure to the fuel rail for the truck to start. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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

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: Shuts off and won't start for about an hour or so

Hi there. From the description you have provided concerning your vehicle's drivability problem, it hard to discern whether it does not turn over, or it does not start for about an hour after driving. If your vehicle will not turnover...

Q: Transmission not working properly

Hi. P0133 is a code for the oxygen sensor bank one sensor. P0410 is a code for the secondary air injection system malfunction and a P0301 is a code for a misfire on cylinder 1. I would suggest having a...

Q: Opinion on GM's 4.3-liter Vortec engines

With the overall vehicle, it is a coincidence for your father. A lot of times, the vehicles fall apart. The engine themselves are actually decent engines. They are strong engines, those 4.3-liters. But the Vortec fuel injection system on them...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.