K

Kaijun

Active Member

• Nov 25, 2018

• #1

After I changed my climate control button bulb (JWH100070), the climate control buttons are still not illuminated, besides, rocker buttons are not too. I measured these bulbs with multimeter, they are okay. I measured wires in the white plug, no volt. But if I plug in the white plug and press the power button, the panel led is illuminated, the buttons are not. I don't see any fuse for buttons. Any idea of how to diagnose the problem.

Thanks,
Kai

 

sierrafery

Well-Known Member

• Nov 25, 2018

• #2

First of all confirm that all the other buttons on dash and console are illuminated and only the aircon ones are not

 

K

Kaijun

Active Member

• Nov 25, 2018

• #3

Is auto button air con.? All buttons including rocker ones are not. I measured PCB, there are volts. the panel led bulbs have about 5-6 volts. But button bulbs have 0 volt, they share same power. The flat cable is reconnected tightly.

 

sierrafery

Well-Known Member

• Nov 25, 2018

• #4

Kaijun said:

Is auto button air con.? All buttons including rocker ones are not. I measured PCB, there are volts. the panel led bulbs have about 5-6 volts. But button bulbs have 0 volt, they share same power. The flat cable is reconnected tightly.

Click to expand...

This answer after my question makes no sense to me, i hardly understand what you mean

 

K

Kaijun

Active Member

• Nov 25, 2018

• #5

I managed to measure input powers from the white plug. The button bulbs have no power except the led bulbs, it is likely some electronic
component is not working. I need a electronic or PCB diagram.