Diagnosis and solution: In the above situation, it is certain that the automatic program of electric glass window is lost and needs to be reset. The specific steps are as follows:
1) After lifting the left front glass window to the top, release the switch, and within three seconds, press the left front glass window up switch again and hold it for three seconds before setting the left front glass window. 2) Set all other doors and windows in turn, which can be set on the driver's seat electric door and window switch. 3) When the setting doesn't work, you can try again and again.
Common fault 2: refrigeration and air conditioning produce hot air instead.
Diagnosis and solution: The air outlet of Carnival air conditioner is designed as the evaporation box of advanced air conditioner, and there is no damper in the middle of the warm air tank to control the hot and cold, so the heat source of the warm air tank is cut off by the warm air valve. It is possible that the heating water valve fails, causing hot water to enter the heating water tank all the time and hot air to come out. It is also possible that there is a line fault and the water valve of the water heater is given the wrong opening instruction. Because the air conditioning control system of Carnival is complicated, it needs to go to a professional maintenance station for maintenance and diagnosis.
Common fault 3: the car does not accelerate well, especially when it is 80-90km/h, the car will still rush.
Diagnosis and solution: There are many reasons for poor acceleration of automobiles, but recently Ford found that similar phenomena are mostly caused by poor gasoline oil products, which leads to poor spark plugs (red spark plugs), which affects engine performance and leads to poor acceleration. Of course, it is impossible to determine the reason without inspection. We have to go to Ford maintenance station to test with Ford special test computer WDS to determine the specific reason.
Common fault 4: the car can't turn off the engine.
Diagnosis and solution: the car won't turn off, generally it is a circuit failure of the car, which needs to be repaired at Ford maintenance station. The specific reason is that the engine computer is still working when the ignition key is turned off, and the power supply comes from other lines, which may be a short circuit to ground or live wire, or the PCM relay may be turned on for mechanical reasons.