What is the reason why the AC switch of Nissan Tiida air conditioner does not light up?
3 Answers
Nissan Tiida air conditioner AC switch does not light up due to AC switch failure or air conditioner fuse. The following is the relevant introduction: 1. AC button: The AC button is the air conditioning refrigeration switch. Turn on the AC, the car compressor will turn on, and the air blown by the air conditioner is cold air; if the AC is not turned on, the car compressor is in the off state, and the air blown is natural wind. 2. Car air conditioning function: The air conditioner can control the temperature in the car, it can both heat and cool the air to control the temperature in the car to a comfortable level; the air conditioner can remove the moisture in the air to create a more comfortable environment.
Once I encountered this situation while driving my Tiida: the AC button light wasn't on, but cold air was still blowing out. I figured it could be several possibilities. Most likely, the small bulb inside the switch was burnt out - these tend to fail after prolonged use. Another possibility was a fuse issue; the Tiida's AC fuse is located in the box under the steering wheel's left side, and the 10A one is prone to blowing. Poor wiring connections are also common, especially in older cars where plugs can oxidize or become loose. If it's just the light not working while the AC still functions, it doesn't actually affect cooling performance, but it's visually annoying. I tried replacing the fuse myself first. If that didn't work, I'd have to take it to a mechanic to remove the center console panel for inspection - after all, tampering with electrical systems yourself can easily lead to complications.
I remember the mechanic mentioned this to me last time. If the air conditioning switch light in a Nissan car isn't working, it's mostly an electrical circuit issue. First, check the fuse box located near the left knee area of the driver's seat. Look for the 15A fuse labeled 'A/C'. If it's blown, simply replace it with a new one. But if replacing the fuse doesn't fix the problem, it might be a loose wiring harness connector behind the switch assembly, which requires removing the center console panel to inspect. Also, don't overlook the possibility of a faulty switch itself, especially in older cars where the switch contacts may have worn out, causing the light to fail. It's best to use a multimeter to check the switch's electrical conductivity. If you don't have the tools, it's advisable to go directly to the repair shop—the mechanic can diagnose it in about ten minutes.
