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LS 400/LS 430 Electrical Questions & Problems

46 messages,  Last post on Oct 22, 2009 at 2:04 AM

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What is this discussion about? Lexus LS 400, Lexus LS 430, Electrical, Sedan

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#37 of 46 Re: CD player. [wwest] by Mr_Shiftright HOST Oct 19, 2008 (5:15 am)
Replying to: wwest (Oct 18, 2008 8:02 am) I don't think it pays to fix these old things anymore. I'd just replace it. Replies to this message: j7wild (Oct 19, 2008 7:24 am)
#38 of 46 Re: CD player. [Mr_Shiftright] by j7wild Oct 19, 2008 (7:24 am)
Replying to: Mr_Shiftright (Oct 19, 2008 5:15 am) you are correct; I feel the same way.   but I wouldn't even spent the money on a new car stereo for a 16 year old Lexus with 200,000 miles on it   my nephew is turning 16 next year and is going to start to drive - I am thinking how selling the car to him - his first car, a Lexus!!   my first car was a 1976 beat up old dodge van with no ac and am stereo
#39 of 46 Radio/CD fusible links blowing. by wwest Feb 24, 2009 (5:10 pm)
1991-92 LS400 radio often blows one of the fusible links inside the radio head. Specifically the one that passes the B+ from the dome fuse through the radio and then out to the CD. C21 pin 4 from the dome fuse into the radio and then through the fusible link to C9 pin 6 out to the CD. There is a second fusible link for the acc B+ out to the CD but that one doesn't blow.   Anyone have experience with this...??   Radio aways operates even with the fusible link blown and CD works perfectly until the fusible link blows, days or weeks apart.
#40 of 46 Re: CD player. [j7wild] by wwest Feb 24, 2009 (5:20 pm)
Replying to: j7wild (Oct 18, 2008 4:02 pm) I am in the process of wiring in an external fuse in parallel with the internal pico fuse. Shall I copy you on instructions...?? Replies to this message: wwest (Mar 08, 2009 5:22 am)
#41 of 46 Re: CD player. [wwest] by wwest Mar 08, 2009 (5:22 am)
Replying to: wwest (Feb 24, 2009 5:20 pm) B+ (battery 12 VDC) pin at the CD player connector was shorted to ground. Provided a B+ power bypass around the connector and all is well.
#42 of 46 CEL by wwest Mar 10, 2009 (6:54 am)
CEL on my brother's 91 LS was due to failure of the EGR valve vacuum modulator.   Over $100 at Lexus of Memphis and needed to order.   In stock (92 Camry) at Hutton Toyota for ~$70.
#43 of 46 FYI...Better late than never. by wwest Apr 03, 2009 (6:02 pm)
I'm just finishing up installing replacement aftermarket seat heaters for our '95 LS400. In the process I discovered why the OEM ones failed...POOR DESIGN.   The OEM seat heaters are designed poorly in that the elements can too easily come in contact with the metal frame of the seat. That's why both front seat heaters had failed.   It turns out that there is a TSB that covers this flaw for the '95-'00 LS400...5 years to discover and correct an obvious design flaw. The TSB reads that it only applies under specific customer complaints and only while the car is still under the factory warranty.   So if you own a '95 to '00 LS400 and your seat heater(s) have failed now you know why, TOO LATE...
#44 of 46 LS 430 keyless entry problem by mike425 Oct 20, 2009 (3:00 pm)
I have a 2004 LS 430 and the keyless entry stopped working. I can't lock or unlock the car or the trunk. I have had it to the dealer ( they had it for 2 months ) to recalibrate the remotes to the car, with no success. The car has 56,000 miles on it and the dealer doesn't know what's wrong with it, the Lexus factory technican has checked it out and even been in contact, I am told, with the engineers that built it. They can't get an error code on any of the diagnostic equipment, pin pointing the problem. They think it is something in the wiring harness or a computer that is fastened to the inside of the firewall that requires the whole dashboard to be removed to get to it and that may not be the problem. The dealer has suggested an aftermarket remote to lock and unlock the car, or just live with it ( why did I buy a Lexus, if I have to do that ). I have been in contact with Lexus, but unforntunately they were not much help. The dealer suggested that I don't fix the car, because it will cost thousands of dollars to repair. I went back to Lexus and they said take it back to the dealer and the dealer will basically rebuild the car, at my expense. That's a bit scary folks. Does anyone have any suggestions or experience with the keyless entry, because I don't really want to give my dealer a blank check to fix it. ( I'm not sure they know how for starters )   Thank You Mike Replies to this message: wwest (Oct 21, 2009 8:42 am) mike425 (Oct 22, 2009 2:04 am)
#45 of 46 Re: LS 430 keyless entry problem [mike425] by wwest Oct 21, 2009 (8:42 am)
Replying to: mike425 (Oct 20, 2009 3:00 pm) Metallic window tint film...?? Replies to this message: mike425 (Oct 22, 2009 2:04 am)
#46 of 46 Re: LS 430 keyless entry problem [wwest] by mike425 Oct 22, 2009 (2:04 am)
Replying to: wwest (Oct 21, 2009 8:42 am) No, only Lexus original tinting. The keyless entry was working fine, then just stopped.   Thanks for the suggestion though Mike

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