LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Electrical Gremlins

Thread Tools
 
Search this Thread
 
Old 08-23-18, 12:31 PM
  #1  
Jbthompson
Intermediate
Thread Starter
 
Jbthompson's Avatar
 
Join Date: Jun 2011
Location: Tx
Posts: 317
Received 8 Likes on 8 Posts
Default Electrical Gremlins

HI everyone. My car is having some weird electrical issues. A couple of weeks ago, the passenger window would roll down but not roll up. This week, the drivers side window won't roll down. This morning I went to vent the moonroof and it wouldn't work (I do this everyday) and just now the drivers side window started working. Maybe a weak battery or alternator? It's odd how these things are moving around the car.
Old 08-23-18, 06:59 PM
  #2  
Arcturus
Lead Lap
 
Arcturus's Avatar
 
Join Date: Nov 2013
Location: Quebec, Canada
Posts: 608
Received 19 Likes on 17 Posts
Default

Originally Posted by Jbthompson
HI everyone. My car is having some weird electrical issues. A couple of weeks ago, the passenger window would roll down but not roll up. This week, the drivers side window won't roll down. This morning I went to vent the moonroof and it wouldn't work (I do this everyday) and just now the drivers side window started working. Maybe a weak battery or alternator? It's odd how these things are moving around the car.
How old is the battery? These cars start acting weird when the battery is weak.
Old 08-24-18, 05:46 AM
  #3  
Jbthompson
Intermediate
Thread Starter
 
Jbthompson's Avatar
 
Join Date: Jun 2011
Location: Tx
Posts: 317
Received 8 Likes on 8 Posts
Default

Battery is probably two years old. It’s been very hot though.
Old 08-24-18, 09:34 AM
  #4  
Arcturus
Lead Lap
 
Arcturus's Avatar
 
Join Date: Nov 2013
Location: Quebec, Canada
Posts: 608
Received 19 Likes on 17 Posts
Default

Originally Posted by Jbthompson
Battery is probably two years old. It’s been very hot though.
if the battery is new and has been verified to be ok, then I would try and get an electrical diagram for these components and see if they meet at a common location. It could be related to a loose or damaged connector at a onboard computer. Rkw77080 do you have an electrical diagram for the power windows and moon roof?
Old 08-24-18, 10:33 AM
  #5  
Romanova
Racer
 
Romanova's Avatar
 
Join Date: Jan 2017
Location: TX
Posts: 1,903
Received 746 Likes on 528 Posts
Default

Originally Posted by Jbthompson
Battery is probably two years old. It’s been very hot though.
A lot of Texans would say just replace the battery every 2 years, myself included. It's not that expensive and at 2 years, the warranty isn't much good anyways. The heat here in Houston really takes a toll on them. YMMV.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
akhosravi
RX - 2nd Gen (2004-2009)
12
07-26-19 07:10 AM
76mmturbo
Performance & Maintenance
2
07-12-13 07:52 AM
lexus114
RX - 2nd Gen (2004-2009)
4
01-31-13 07:21 AM
vital
Northern California Lexus Club
12
09-10-12 09:18 PM
heab0774
GX - 1st Gen (2003-2009)
4
11-05-11 10:17 AM



Quick Reply: Electrical Gremlins



All times are GMT -7. The time now is 04:08 AM.