paulo57509

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paulo57509 last won the day on May 3

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About paulo57509

  • Rank
    Club Member

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  • First Name
    Paul

Profile Information

  • Gender
    Male
  • Lexus Model
    LS400
  • Lexus Year
    1998
  • Location
    California (CA)
  1. Thanks for closing the loop and posting your fix.
  2. This is a pretty general statement. What makes you think you have a fuel pump problem? Can you describe the symptoms?
  3. Sounds like access via the key is a no-go. That leaves the switch circuit. I have no easy fix. Hopefully, someone will have one for you. In the mean time.... Attached are the relative pages from my '98 FSM. I have no work around for not having the scan tool. DI-701 Body Control System - Luggage Opener Switch Circuit.pdf DI-703 Body Control System - Luggage Opener Motor Circuit.pdf DI-676 Body Control System - Problem Symptoms Table.pdf DI-720 Body Control System - Luggage Compartment Door Lock and Unlock Switch Circuit.pdf BE-140 Power Door Lock Control System - Inspection.pdf
  4. https://parts.lexusofroseville.com/p/Lexus__/COMPUTER---ENGINE-CONTROL/63612676/8966150303.html P/N 89661-50303 superceeds P/N's 8966150300; 8966150302; 8966150304 Your ECU may have been replaced. It depends on production date of your chassis and the date that the supercession of the part occurred. IOW, your chassis may have been in-process on the production line with the 50302 when the 50303 was put into production. Odds are that it was replaced at some point after production. I got the old service records from the local Lexus dealer for my car when I bought it used from Carmax in 2008. These records may some of your questions. Regardless, the ECU you want is the latest part number. It will have the most recent calibrations.
  5. Why are the lower control arms being replaced? Bushing wear? Fronts or rears? Are you the original owner or did you buy it used? Was it in a wreck? If you haven't done so already, you might get a more informed response by posting at the GS forum: https://us.lexusownersclub.com/forums/forum/88-93-05-lexus-gs300-gs400-gs430/
  6. The wiper/washer is controlled by the Body ECU. The wiper motor circuit diagram doesn't show any relays. If there are relays, they're probably inside the Body ECU box. What kind of problem are you having? DI-685 Body Control System - Wiper Motor Circuit.pdf BE-82 Wiper and Washer System - Location.pdf
  7. Yes, definitely check the easy (cheap) stuff first. I've had good luck with Magnafow on both my '87 Camaro and '87 Acura Legend. I don't know if they offer "direct fit" units for the LS. Sometimes with high mileage vehicles, something like degrading/degraded tune or oil consumption could be poisoning the converters as is the case with my +440k mile Legend. You're lucky you live outside of CA which requires CARB certified replacements which only adds to the purchase price.
  8. I don't think it's a problem. The trunk lid on mine only pops up enough to clear the latch mechanism, leaving enough gap for my hand. I have to lift the lid the rest of the way manually.
  9. Could be a bad battery cable. Sometimes they corrode inside the insulation where you can't see it. It could also be a funky starter relay.
  10. DTC P1600 = ECM Battery Malfunction Essentially, the DTC is telling you that the ECM has lost the +12 volt supply. I don't have a '95 model year manual for reference, so I'm not going to tell you to start probing around with a volt meter. However, you can check the fuse panel and of there's a fuse labeled "EFI No. 1" and check to see if it's open (blown). You can try replacing it but keep in mind, you still need to determine why the fuse blew in the first place.
  11. Very nice find! But where did your tool kit pen light disappear to?
  12. I don't know how cost effective this is these days, but 4 or 5 years ago I purchased a 2-day subscription to Toyota Information Services. I don't know if this is the same site or not: https://techinfo.snapon.com/TIS/Register.aspx For two days (more than enough time) I downloaded the FSM's for my '98 LS400. I also downloaded any other publications that looked interesting. I did find a set of new FSM's on ebay for around $200, IIRC. But for the price of a subscription, it beats greasing up your hardbound manuals when you're under the hood or chassis. After downloading the manual sections, I took a few more days at the computer to organize the pages/sections. I've attached a sample. EM-15 Timing Belt - Removal.pdf
  13. New key programmng for '98-up models is a two step process. IIRC, you need to program the transponder before you can program the keyless entry. You need to have at least one pre-programmed key to program the transponder for the new key. Instructions are attached for those who need programming instructions. key programming.pdf keyless entry programming.pdf
  14. Like I posted on the "other" forum, it's not an Aisin kit. Read the "Item Specifics" section of that auction page.