Hello everybody.
The battery on my 2006 GX470 is draining when the car is off for more than 2 days. Analyzing the circuits with a multimeter, I identified that the Power Window Master is responsible for continuing to consume 0.2A even after the car has been turned off for a long time. If I disconnect it, the drained current drops to 0.01A, that is, this is the culprit.
Has anyone ever experienced this?
Is this part repairable?
Is there anything I should do or should I go for a replacement?
Unfortunately, I don't know anyone who owns this car so I can test whether replacing it will fix it.

 

I have not taken one apart, but there is a circuit card in there and the wiring diagram indicates it's on the CAN network, so it's likely the microcontroller in there is not going to sleep.

There are chinese-made replacements available on aliexpress and they're cheap at 20-30 euros.
Dealer price for an OEM part is in the $800 range.
From pictures, the chinese ones aren't a good color match. I have no opinion on their quality, but at the price it may be worth a try.

It's probably worth taking apart to see if there's any damage to the circuit card, a bridged trace from debris? Or perhaps water damage?

Chip H.

 

I already ordered another chinese on Amazon. Let's see if it works.
Thanks for the answer.

 

I have the same issue! Any update on the cheap Chinese knock off?