A/C doesnt work peugeot 107 2007
Hi!
I have a 2007 Peugeot 107 (1.0 petrol). Because of the recent hot weather, I decided it was finally time to recharge the A/C. After the mechanic recharged it, he asked me to switch the A/C on, but that’s where the problem started.
The A/C button doesn’t respond at all and the indicator light never comes on. It was already like this when I bought the car.
I checked all the fuses under the steering wheel and they all seem to be fine. Then I removed the trim to access the A/C switch and its connector.
Using a multimeter set to 20V DC, I checked the connector pins one by one:
● Pin 1: 0V
● Pin 2: 12V
● Pin 3: 0V
● Pin 4: empty (no terminal)
After that, I tested the A/C switch itself. I set the multimeter to 200 Ω and checked every possible combination of the switch pins. In every case the meter showed OL/“1” (open circuit), even while pressing the button.
Is it possible that the A/C switch is simply faulty, which is why I can’t turn the A/C on?
Is there any safe way to activate the A/C without using the switch, just for testing? Or is there something else I should check first?
I’m completely new to car electrics, so if I’ve misunderstood something or done anything silly, I apologize in advance. Thanks for any advice!