Q: I have discovered four error codes when I diagnosed my car.

asked by on

Hi Ben Good Day I have this four error codes when I diagnose my car P0441,P2420,C2125,B1650.the check engine light with vsc and transaction airbag light and tire pressure light alway remains on once I clear them of the dash board if I hit a bump they all return.My car cranks for long before it starts but someone just suggests to me I should try and you the actual key the manufacturer sold it with as I have checked fuel pumps and filter to no avail.can a car key cause a car to hard start.once it is on it runs very well with no issue except for the engine vibrations I have been experiencing lately and if I have driven the up to an hour and am in traffic the engine seems to sound more noisy like I have the cooling system working.my temperature has never risen or anything am just curious.I really like my can in top condition and I don't want any more issues coming up.what the average RPM at Park,neutral,drive and reverse.thank you

My car has 76000 miles.
My car has an automatic transmission.

Hi there. For all of these lights to appear when going over a bump and can be cleared with a computer diagnostic tool, then there is a loose ground on the chassis of your vehicle. Check the battery cables and make sure that they are tight. Check the ground cable to the chassis and makes sure that it is tight. Look under the vehicle for any wires that could be hanging and see if they can be a ground wire. The warning lights are for the emissions system, the tire monitoring system, and the passenger airbag system. It is most likely a loose ground and not a fault within three different parts of the vehicle. If you need further assistance with your vehicle, then seek out a professional, such as one from Your Mechanic, to help you with you warning lights coming on when hitting bumps.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I have discovered four error codes when I diagnosed my car.

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: Tire Pressure Light coming on

The Tire Pressure Light comes on when the air in the tire is low. If you have tested the tire pressure and it is normal, but the Tire Pressure Light remains on, you need to have the TPMS system checked...

Q: ESP lighting is on

Hi and thanks for contacting YourMechanic. The ESP light is handled by the ABS controller. If you scan the ABS controller with computer scanner you can get the error codes that are stored and begin troubleshooting. Most likely a wheel...

Q: What does it mean if the Check Engine light comes on in the dash?

Your car is pretty sophisticated. The computer systems are capable of monitoring a number of different aspects of operation, including the exhaust/emissions system, the engine and transmission, and more. If a problem is detected, the Check Engine light is turned...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...