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trung do
trung do,
Category: GMC
Satisfied Customers: 75
Experience:  journeyman technician at stevens creek toyota
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On my 2004 Yukon - the rear side passenger window randomly

Customer Question

Hi - on my 2004 Yukon - the rear side passenger window randomly goes down with no operation of any switch. I replaced the individual door switch as I believed this was most likely issue but fault remains.....
JA: Are you fixing your Yukon yourself? What have you tried so far?
Customer: yep - only switch replacement
JA: Anything else you want the mechanic to know before I connect you?
Customer: nope
Submitted: 15 days ago.
Category: GMC
Expert:  trung do replied 15 days ago.

GOOD MORNING , THIS IS TRUNG , GLAD TO BE HELPING YOU . WHEN YOU SAID GOES DOWN SLIDE DOWN BY IT SEFT

Customer: replied 15 days ago.
by itself
Expert:  trung do replied 15 days ago.

I NOTICE YOU RECENTLY REPLACE SWITCH . THE ONLY WAY WINDOW GOES DOWN IS MOTOR IS EITHER SHORT OUT OR MOTOR GEAR LOCKING PIN IS BROKEN .

Customer: replied 15 days ago.
nope - its electrical - nothing to do with locking pin
Expert:  trung do replied 15 days ago.

DID THIS OCCURE WHILE YOU WERE DRIVING OR LEAVING CAR PARK

Customer: replied 15 days ago.
the switch is obviously being shorted somewhere
Customer: replied 15 days ago.
both driving and leave car
Customer: replied 15 days ago.
where is the short - driver side switch or relay?
Expert:  trung do replied 15 days ago.

SO CAR PARKING NOT RUNNING AND WINDO GOES DOWN ?

Customer: replied 15 days ago.
I think so
Customer: replied 15 days ago.
I discovered the window down when returning to vehicle and I think it went down whilst the vehicle was parked
Expert:  trung do replied 15 days ago.

WOW THIS IS THE FIRST I SEEN CAR NOT RUNNING AND WINDOW GOES DOWN . LET ME LOOK AT WIRING DIAGRAM AND GET BACK TO YOU

Customer: replied 15 days ago.
Ok - I could be wrong - it may have lowered unknown to me before I turned engine off
Expert:  trung do replied 15 days ago.

LOOKING AT DIAGRAM RIGHT NOW GIVE ME ONE SEC

Customer: replied 15 days ago.
if there is a short where will it be - seems like there are now just two possibilities as the door switch has been replaced
1/ drivers switch
2/ relay in the cabin?
Expert:  trung do replied 15 days ago.

WELL MOST LIKE IS THE RELAY DRIVER SWITCH IF RARELY IS THE CASE . RELAY TEND TO BE STUCK ALOT . HAVE YOU TRY REPLACING THE RELAY ?

Customer: replied 15 days ago.
nope - how do I replace the relay?
Customer: replied 15 days ago.
where is the relay located?
Expert:  trung do replied 15 days ago.

WHAT ENGINE SIZE IS YOUR CAR I NEED TO LOOK AT EXACT MODEL

Customer: replied 15 days ago.
is the same relay used between the 1/driver switch and 2/door switch?
Customer: replied 15 days ago.
It is 2004 Yukon XL Denali - 6.0 engine
Customer: replied 15 days ago.
trunk - you still there?
Expert:  trung do replied 15 days ago.

YES A LOOKING AT YOUR DIAGRAM LET ME SEND YOU SOME PIC

Customer: replied 15 days ago.
ok dokey
Customer: replied 15 days ago.
Hi Trung - are you sending the pic on email?
Expert:  trung do replied 15 days ago.

sending from my phone to my laptop it taking forever , can u check in the engine compartment fuse box for fuse rt

Customer: replied 15 days ago.
will do - two mins - I'll get a photo on my phone - I assume its the 'box' in the engine compartment
Expert:  trung do replied 15 days ago.

YES

Expert:  trung do replied 15 days ago.

IT A 25 AMP RELAY

Customer: replied 15 days ago.
Trung - can you see the diagram?
Expert:  trung do replied 15 days ago.

IT NOT IN THERE DO YOU KNOW THE LOCATION OF BODY CONTROL BOX , RIGHT SIDE KICK PANEL

Customer: replied 15 days ago.
yep - I'll go and get photo
Customer: replied 15 days ago.
only box I could find was riverside close to the pedals
Customer: replied 15 days ago.
driverside
Expert:  trung do replied 15 days ago.

DO YOU HAVE A METER HANDY

Customer: replied 15 days ago.
nah - sorry
Expert:  trung do replied 15 days ago.

YEAH THE 25 AMP FUSE SHOULD BE THE ONE BUT IF WE WANT TO MAKE SURE THE WIRE GOING TO THE WINDOW MOTOR IS NOT SHORT OUT WE NEED TO CHECK RESISTANCE OF THE WIRE

Customer: replied 15 days ago.
ok - not sure what to do now? I guess I am wondering why the specific window fault is associated with a single fuse that must serve all the windows?
Expert:  trung do replied 15 days ago.

NO THAT REAR WINDOW THE HOT WIRE GOING THRU THERE IF RELAY SHORT IT WELL ACTIVATE YOUR MOTOR

Expert:  trung do replied 15 days ago.

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

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TRUNG DO

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