Skip the auto shop - Our mechanics make house calls

Q: Engine fault warning lamp flashing

asked by on

Engine is getting switched off when I drive on A/C ON

My car has 18 miles.
My car has a manual transmission.

A: Hey there. This may suggest a short or pote...

Hey there. This may suggest a short or potentially a bad fuse or relay problem related to your AC. Your car's computer has what is known as a "fail safe" default that is engaged when the computer detects an electrical short or many other faults in the various systems in the car. When this fault is detected, the "fail safe" is engaged and depending on the type of fault, the computer will cut power to the engine preventing further damage. When this happens, as you have noticed you will have a Check Engine Light on. When this happens, the computer will register specific fault codes which can be downloaded to determine the cause of the fault or error. I would recommend having an expert from YourMechanic come to your location to diagnose the codes and repair this issue accordingly.

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・Save up to 30%

Get a quote

What others are asking

Q: Rocker arm would i know about it or car be normall

A broken rocker arm would definitely make a lot of noise and cause a constant misfire in the cylinder it is related to. My best advice would be to hire an experienced technician to look over the work to see...

Q: I have a trouble code P0622: Generator Filed Terminal Circuit and my battery light is on.

The generator is the same thing as the alternator. If you are running through batteries, then it's likely that the amount of voltage from the alternator is too much for the battery to take. The other factor may be that...

Q: Car won't start keeps starting then cutting out its a new battery as well

Hello. This is most likely not a battery problem if the car cranks over and starts even if it dies shortly after. This is more likely an air/fuel supply issue. There is something called an idle air control module in...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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.