'01-'05 IS300 DIAGNOSTIC MANUAL W/Full Wiring Schematics/TSB repair DOWNLOAD - Lexus IS Forum
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post #1 of 24 (permalink) Old 09-28-2011, 07:31 PM Thread Starter
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'01-'05 IS300 DIAGNOSTIC MANUAL W/Full Wiring Schematics/TSB repair DOWNLOAD

Here it is! This is the 1326 page 14.4Mb Diagnostic Manual. This is not the FSM, which is already a sticky, only the DI section of it that's not included in any link and hasn't been available until now. It includes complete, easy to read troubleshooting for all major systems on all years of the IS300. It also contains part numbers(for parts and SST's), the complete wiring schematics and electrical troubleshooting, TSB's, and much more. It also contains all major codes(DTC's), the definition of them, and an easy guide on how to repair the fault(s). It's the same manual Lexus uses and I constantly reference it when helping out on here. Enjoy!

https://www.dropbox.com/s/nji5xr398l...anual.pdf?dl=0


Here's some pin outs for the loose connectors in the ECM box.
https://my.is/forums/f87/ecu-body-har...5/#post7002209

'02 IS300 MSM LSD

Last edited by jasonm4; 07-08-2017 at 09:57 PM. Reason: broken link fixed-permanent
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post #2 of 24 (permalink) Old 10-15-2011, 02:09 PM
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AMAZING manual! This looks JUST like alldata -- but it has WORKIGN hyperlinks!!
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post #3 of 24 (permalink) Old 01-27-2012, 11:25 AM Thread Starter
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OP link fixed again. Should be good for awhile now. Please lemme know if it's down again and i'll re-host it.

'02 IS300 MSM LSD
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post #4 of 24 (permalink) Old 02-22-2012, 11:06 AM
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Nice! Another good manual to accompany my old Service Manual PDF. Thanks.

-Eric
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post #5 of 24 (permalink) Old 08-14-2012, 08:46 AM
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This is Greatly appreciated,are their other manuals available for 02 IS300.Its getting to the age of project time of PMs and some needed replacement work.
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post #6 of 24 (permalink) Old 08-14-2012, 08:58 AM Thread Starter
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Originally Posted by caseybphx View Post
This is Greatly appreciated,are their other manuals available for 02 IS300.Its getting to the age of project time of PMs and some needed replacement work.
No problem. Check the first gen Showroom forum for FSM. I just updated it not too long ago, so there's a link i have added in the OP to a download page.

'02 IS300 MSM LSD
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post #7 of 24 (permalink) Old 10-09-2012, 08:33 PM
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I'm in the same boat as caseybphx. Greatly appreciated.

BTW, what does FSM stand for? Full Service Manual?
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post #8 of 24 (permalink) Old 10-09-2012, 09:15 PM Thread Starter
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I'm in the same boat as caseybphx. Greatly appreciated.

BTW, what does FSM stand for? Full Service Manual?
Factory Service Manual. The 1300+pg diagnostic section download is just the DI portion of it.

'02 IS300 MSM LSD
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post #9 of 24 (permalink) Old 05-06-2013, 09:57 AM
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Jason, do you know if there is a diagnostic manual for the Body? I'm throwing some B-codes, specifically B1421, B1423 and B1411 and I'd like to read up on them.

01 MSM E-Shift ZGMF-X10A Freedom
- Full OEM Aristo 2JZ-GTE conversion :)

Looking to do an Aristo swap?
Aristo Swap with IS ECU
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post #10 of 24 (permalink) Old 05-06-2013, 10:11 AM Thread Starter
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Jason, do you know if there is a diagnostic manual for the Body? I'm throwing some B-codes, specifically B1421, B1423 and B1411 and I'd like to read up on them.
I believe the diagnostic manual is actually much larger than what is hosted here and may have body codes. I believe there is some in the link here but not many. The FSM covers some of this but not code related. I can tell you...

B1421 is solar sensor malfunction(driver side bubble). FSM shows what the voltage should be and how it fluctuates.

B1423 is open in pressure sensor circuit/abnormal refrigerant pressure. Sensor located in front of radiator/driver side.

B1411 is Room temperature sensor circuit malfunction(located on the driver side and behind panel below steering column.

Now you could use the FSM's specs and see what you have at sensors. Almost sounds like you have some opens. Here's the indexed FSM which you probably have. http://db.tt/xmQ2dI4r

'02 IS300 MSM LSD
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post #11 of 24 (permalink) Old 05-06-2013, 10:18 AM
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Roger that...I'll read the entire Air Conditioning section.

Thanks bro!

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- Full OEM Aristo 2JZ-GTE conversion :)

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post #12 of 24 (permalink) Old 06-30-2013, 04:41 AM
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I just bought an '05 yesterday; getting a copy of the full fsm was/is a high priority; so thanks for the download!

Is there a good place to get a paper copy, or did the mfg go 'all-electronic' with this one?
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post #13 of 24 (permalink) Old 07-08-2013, 09:11 AM
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thanks for sharing this. Just picked up an 02 and this will come in handy.
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post #14 of 24 (permalink) Old 01-28-2015, 02:51 PM
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the link says from 2002-2005.................Are these the same for the 2001? Im going to attempt to wire in my aemv2.....any help on what schematics and where to find them that are needed is GREATLY appreciated.
thanks

gabe

also, can I get the "wiring for dummies" version please this is my first Toyota/lexus
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post #15 of 24 (permalink) Old 03-24-2015, 02:35 AM
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Thank You! This will absolutely be useful.
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