Q: Q: Air Conditioning

asked by on

The AC is not cooling. I went to a AC mechanic and after the check out, they said the condenser and vacuum have to be replaced and filled (vacuum). However, I went to another mechanic to scan the car (yaris 2008 sedan) to detect an issue with the check engine light. In this scan it shows fault on code B1412 Ambient temperature sensor and B1423 Open in pressure sensor circuit/abnormal refrigerant pressure. The question is:

Are these codes telling me the main reason why the AC is not cooling or in fact I have to replace the condenser and vacuum as the other mechanic diagnosed before?

Thank you so much for your valuable opinion.

My car has 68040 miles.
My car has an automatic transmission.

Hi there:

Error codes are created when the sensors designed to monitor components detects an error in the system; or are faulty themselves. They are used as a tool or guide to provide a professional mechanic with a starting point in which to begin the diagnosis process. In your example, the error code indicates that there is a problem with the controls of the AC system; however, it’s also possible that you have mechanical defects (as the original mechanic indicated). It’s quite possible for multiple components of the AC system to become broken at the same time or to display similar symptoms. Without being there to physically inspect your Toyota, it’s hard to tell you which is right; but it’s possible that both need to be repaired.

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. Q: Air Conditioning

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: How long can I drive my car with the engine light on?

Hi there. It is no good to drive a vehicle with the engine light on. The engine light is on for a sensor has picked up something that is not functioning or operating correctly. Check the computer with a scanner...

Q: Started idling rough then stalling at traffic lights after about 20 minutes of driving. Replaced fuel pump, fuel filter, and spark plugs.

Try flushing out the fuel system with a fuel treatment. You may have to remove the supply fuel line and blow out the line with air pressure to clean out what could be blocking the line. Check all of the...

Q: My car has no electrical power and there is a blown 80 amp fuse under the hood

It sounds like you have a ground issue. Check the ground wires from the battery to the fuse box. Make sure that the cables are tight and free of corrosion. Check the condition of the battery terminals for corrosion and...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...