LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

1996 LS400 Wont start with key

Old 11-24-13, 08:04 AM
  #1  
zero9
Driver School Candidate
Thread Starter
 
zero9's Avatar
 
Join Date: Sep 2013
Location: LA
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Angry 1996 LS400 Wont start with key

When I turn the key to the on position, all the lights, the ac, the radio, everything works but nothing happens when I turn the key, no noise no click no nothing? We just had the heads resurfaced, changed the timing belt, water pump, all the pulleys etc. We bought the car to fix up for my wife to drive. All the fuses, the battery and terminals and all electrical test good. Could it be a security issue? Help please!
Old 11-24-13, 12:03 PM
  #2  
RA40
Super Moderator

iTrader: (6)
 
RA40's Avatar
 
Join Date: May 2003
Location: California
Posts: 20,850
Received 463 Likes on 361 Posts
Default

Welcome on your first post.

My thought would be to check the harness to the starter. One or more of the wiring harness sounds like it is disconnected.
Old 11-24-13, 01:34 PM
  #3  
PureDrifter
BahHumBug

iTrader: (10)
 
PureDrifter's Avatar
 
Join Date: Aug 2004
Location: California
Posts: 23,918
Received 94 Likes on 86 Posts
Default

unlikely to be a security issue no immobilizers on '96 cars.
Old 11-24-13, 03:14 PM
  #4  
dashan
Lead Lap
 
dashan's Avatar
 
Join Date: May 2007
Location: KY
Posts: 651
Received 9 Likes on 9 Posts
Default

Clean the battery cable terminal connections.
Old 11-24-13, 03:53 PM
  #5  
LScowboyLS
Lexus Champion
 
LScowboyLS's Avatar
 
Join Date: Dec 2011
Location: Birmingham, AL
Posts: 4,078
Likes: 0
Received 81 Likes on 39 Posts
Default

on my '96, the positive battery terminal was bad where it bolts to the cable - make sure to get the real Toyota part (about $15 at any Toyota dealership, don't bother with the Lexus dealership on this, same part!)
Old 11-24-13, 04:46 PM
  #6  
Yamae
Moderator
 
Yamae's Avatar
 
Join Date: Aug 2011
Location: Japan
Posts: 3,732
Received 850 Likes on 643 Posts
Default

Did you check the neutral safety switch?
When it fails, there's no noise, no click and nothing happens.
Old 12-24-13, 02:13 AM
  #7  
zero9
Driver School Candidate
Thread Starter
 
zero9's Avatar
 
Join Date: Sep 2013
Location: LA
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default one split wire over transmission

ra40 gave me idea sorry it so long I unplugged the neutral safety switch thru the wires over the trans.and starting checking for an open none but I did find two with high ohm readings they high I the plastic protector and found the insalation was splitting open the wire was full of green power I cut the section out solder new in no problem since also this was not where I started thanks for all advice and help
Old 01-04-14, 01:27 AM
  #8  
shanjam
Driver School Candidate
 
shanjam's Avatar
 
Join Date: Nov 2013
Location: UK
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by zero9
When I turn the key to the on position, all the lights, the ac, the radio, everything works but nothing happens when I turn the key, no noise no click no nothing? We just had the heads resurfaced, changed the timing belt, water pump, all the pulleys etc. We bought the car to fix up for my wife to drive. All the fuses, the battery and terminals and all electrical test good. Could it be a security issue? Help please!
does engine turn over? if yes put key into on position wait 6mins turn off turn on start try that good luck
Old 01-04-14, 09:12 AM
  #9  
Gene01
Lexus Test Driver
 
Gene01's Avatar
 
Join Date: Jan 2012
Location: CA
Posts: 832
Likes: 0
Received 7 Likes on 6 Posts
Default

Hi, shanjam. Could you let us know what the 6 minute power on cycle does?
Old 01-04-14, 04:53 PM
  #10  
PureDrifter
BahHumBug

iTrader: (10)
 
PureDrifter's Avatar
 
Join Date: Aug 2004
Location: California
Posts: 23,918
Received 94 Likes on 86 Posts
Default

he had a '00 car, wouldn't apply to an early 2nd gen anyway.
Old 01-04-14, 07:11 PM
  #11  
YoshiMan
Racer
 
YoshiMan's Avatar
 
Join Date: Mar 2004
Location: Colorado
Posts: 1,320
Received 92 Likes on 84 Posts
Default

96s very much DO have an engine imobilizer system... It is just not tied in with the key.

Have you had the alarm go off at all recently? I had an old Toyota Cressida that had an issue just like this and it was one of the little switchs inside the door on the key cylinder that had become brittle and broken off. The switch was stuck in a "half" position which confused the security computer and kept the starter from engaging even with the key in the ignition. I also had the alarm go off and random sometimes. Just throwing in my two cents if nothing else seems to work.
Old 01-05-14, 01:35 AM
  #12  
LScowboyLS
Lexus Champion
 
LScowboyLS's Avatar
 
Join Date: Dec 2011
Location: Birmingham, AL
Posts: 4,078
Likes: 0
Received 81 Likes on 39 Posts
Default

Originally Posted by YoshiMan
I had an old Toyota Cressida that had an issue just like this and it was one of the little switchs inside the door on the key cylinder that had become brittle and broken off. The switch was stuck in a "half" position which confused the security computer and kept the starter from engaging even with the key in the ignition. I also had the alarm go off and random sometimes. Just throwing in my two cents if nothing else seems to work.
Cowboy likey this answer!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
justunme
LS - 3rd Gen (2001-2006)
1
03-12-18 01:57 PM
macdaddy6
LS - 1st and 2nd Gen (1990-2000)
0
05-06-12 07:08 AM
lazybummm
LS - 1st and 2nd Gen (1990-2000)
6
07-15-09 12:02 PM
92lexus
Maintenance
12
02-13-03 07:14 AM


Thread Tools
Search this Thread
Quick Reply: 1996 LS400 Wont start with key



All times are GMT -7. The time now is 05:07 AM.