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Ask Chad Farhat Your Own Question
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Lexus
Satisfied Customers: 1598
Experience:  Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic Vehicles
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I have an ES 350 and my driver side window has been down

Customer Question

Hello! I have an ES 350 and my driver side window has been down when I get ready to leave the house. It was up when I locked it the night before.
JA: How many miles are on the car? Has this ever happened before?
Customer: It's the first time it's happened. I have 74K on it.
JA: What year is your ES?
Customer: 2008
JA: Are you fixing your ES yourself? What have you tried so far?
Customer: I just started researching it because I thought the first time it happened, I thought I put the window down, but since it happened twice, I know it wasn't me and I knew I put it up last night.
JA: Anything else you want the mechanic to know before I connect you?
Customer: I think that's it.
Submitted: 26 days ago.
Category: Lexus
Expert:  Chad Farhat replied 26 days ago.

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

Expert:  Chad Farhat replied 26 days ago.

hey how are you

1- we need to check the master window switch ?

2- Unless the window motor regulator broke and the window fell inside the door ?

3- is it still working now , does it go up & down ?

4- i sent you some diagrams for your review

Please let me know

Thank You

Chad Farhat

ASE Certified Technician

Customer: replied 26 days ago.
Hello Chad,1) I can roll up the window form the driver side master switch and roll it down with no problems.2) the window will roll up from the drivers side just fine so I don't think there is a problem with the motor regulator3) Yes, it works when I use the master switch on the drivers side. I can put the window up and down.Thanks,Mike
Expert:  Chad Farhat replied 26 days ago.

Hey man how are you

1-between the driver door & The car cabin there is a wiring harness that goes thru to the master window switch , you need to check that harness , open the door and move the harness by hand ,does the window drops .from opening & closing the door the wires will break and touch each other intermittently

that is one possibility i seen on that issue

2- if the wiring harness is okay ,pull master switch out & use electrical contact cleaner and clean the switch & retest

Please let me know

Thank You

Chad Farhat

ASE Certified Technician

Expert:  Chad Farhat replied 25 days ago.

Please let me know if you need anything else on it, just reply back and we will continue

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Thank You
Chad Farhat
ASE Certified Technician

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