Where do I find a list of error meanings for Apple Hardware Test?

I think My 27" mid 2011 iMac has a faulty thermostat on the ODD. I ran the Apple Hardware Test and the error message was 4M0T/4/40000002:ODD-0. Where can I learn what this error code actually means?

That error message means that there is a problem with the optical drive fan motor. I recommend you to make a backup of your files and take the Mac to an Apple Store or reseller in order to prevent any problem.
Here you can find a list of Apple Hardware Test messages -> http://www.macissues.com/2014/03/21/how-to-run-and-interpret-apples-hardware-tes ts-on-your-mac/

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What are the meanings of Apple Hardware Test error codes 4m0t/4/40000003:hdd-1300 and 4m0t/4/40000003:hdd-1308?

what are the meanings of Apple Hardware Test error codes 4m0t/4/40000003:hdd-1300 and 4m0t/4/40000003:hdd-1308?

Thanks - Even though I'm years out of warranty I got chat help from Apple (I said they should help me since the codes aren't published.) We covered three different questions, and although I didn't get a specific decoding of the error code, I got confirmation of what other comments here imply - it might have helped that I indicated I'd already been here - and useful links to how to do back ups, including to CD(s). (I don't have a lot of data on this computer yet)
Now I need to figure out how to decide how hot-to-the-touch is "too hot" for the metal frame at the top of the iMac to decide whether I'm getting adequate fan performance or insufficient. While chatting I initially reported it was cool at the bottom and warm at the top. Apple hadn't asked, but their response prompted me to feel it again, and I'd say the top was hot, not warm - I updated but Apple didn't comment further except to conclude after addressing the other questions that I should take it in for further assessment - don't really want to bother with that.

Error Codes after Apple Hardware Test...

After someone here told me I've been experiencing kernel panics, I did some digging on the x lab site and re-ran the Apple hardware test in loop mode. after 17 runs, it returned the error:
4MOT/2/40000005:Right Side
I can't seem to find a list of error codes anywhere. My MBP has two 1GB RAM chips, both were pre-installed when I got the machine from Apple. I haven't tried switching them to see if the same error is returned on testing or with ONLY one or the other installed to see if this is truly a RAM issue. I thought I'd post to the forum for ideas first...

I'm afraid I have no idea. If you have AppleCare, I would ask them about the error code. You do have a different error code (/2/ not /1/ and different number after the second slash) than the link, so perhaps it is not a fan motor that is your problem, though I'm hard-pressed to think of what other motors the MBP has (I don't think the hard drive is on the right side, for one.) Alternatively I can imagine, since you said it took you 17 tests to get the result, that this is an intermitent problem--for all I know, just a slightly loose/poorly soldered wire--and so istat hasn't detected the problem yet.
I think AppleCare or a Mac Genius is your best bet, if you have the one or can get to the other. In particular, unfortunately, Apple does not seem to publish the hardware error codes; it only makes them available to techs.
Good luck!

Error 4PRC in Apple Hardware Test

Hello,
I have a 24" iMac (2.16GHz Core Duo, 1.5GB RAM) from late 2006. A few days ago, the display went black although the power stayed on. I turned it off, and it hasn't been able to boot since then. Whether I try to boot normally, in safe mode, or from the install DVD, the same thing happens: (1) happy startup sound with gray Apple logo; (2) that screen darkens and *sort of* a kernel panic message appears in the center. I say "sort of" because the kernel panic message's rectangle is in the right place and some of its text is readable, but partway down the rectangle it looks as though the drawing is offset somehow. Anyway, that's how this problem manifests itself: a kernel panic very early in the boot process.
Miraculously, the Apple Hardware Test starts up successfully from the install DVD. Both the normal test and the extended test give the same result: the RAM passes its tests, but when it reaches the CPU, the following error message appears, and the tests stop:
4PRC/1/40000003: Processor
That looks bad. I searched the web and various forums (including this one) and found very little information. An Apple document marked "Error Codes, Apple Hardware Test version 3A117" suggests that the appropriate action is to replace the processor.
I suspect that if I take the iMac to my local Mac repair specialists, they will offer to expensively replace the motherboard. I'm an old UNIX nerd and have tinkered with lots of machines other than Macs; can I simply replace my iMac's CPU myself?
Or is CPU replacement in fact unnecessary, when some other fix might work? Does anyone have specific advice about this error message?

In case it's helpful, here's a textual description of the panic from single user mode startup (which fails just as badly):
hi mem tramps at 0xffe00000
PAE enabled
64 bit mode enabled
standard timeslicing quantum is 10000 us
vmpagebootstrap: 382549 free pages
migtable_maxdispl = 71
Enabling XMM register save/restore and SSE/SSE2 opcodes
84 prelinked modules
ACPI CA 20060421
AppleIntelCPUPowerManagement: ready
AppleACPICPU: ProcessorApicId=0 LocalApicId=0 Enabled
AppleACPICPU: ProcessorApicId=1 LocalApicId=1 Enabled
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
using 7864 buffer headers and 4096 cluster IO buffer headers
Enabling XMM register save/restore and SSE/SSE2 opcodes
Started CPU 01
panic(cpu 1 caller 0x001A49CB): Unresolved kernel trap (CPU 1, Type 14=page fault), registers:
CR0: 0x8001003b, C5å: 0x19d0010c, CR3: 0x0120f000, CR4: 0x000006e0
EAX: 0x037a9198, EBX: 0x037de760, ECX: 0x0041fa40, EDX: 0x037ffc80
CR2: 0x19d0010c, EBP: 0x1cfb3e58, ESI: 0x0378bdc0, EDI: 0x037602c0
EFL: 0x00010212, EIP: 0x19d0010c, CS: 0x00000008, DS: 0x00000010
Debugger called: <panic>
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x1cfb3c38 : 0x128d0d (0x3cc65c 0x1cfb3c5c 0x131f95 0x0)
0x1cfb3c78 : 0x1a49cb (0x3d2a94 0x1 0xe 0x3d22b8)
0x1cfb3d88 : 0x19b3a4 (0x1cfb3da0 0x4b00d0 0x1cfb3dc8 0x4)
0x1cfb3e58 : 0x3c10b5 (0x37de760 0x378bdc0 0x1cfb3e88 0x389d2b)
0x1cfb3e88 : 0x38af5f (0x37de760 0x378bdc0 0x1cfb3eb8 0x38998b)
0x1cfb3eb8 : 0x38ed6e (0x3821f00 0x37602c0 0x37de764 0x3821f08)
0x1cfb3f38 : 0x38ebb5 (0x3821f00 0x37ffe40 0x0 0xffffffff)
0x1cfb3f88 : 0x3902fa (0x3821f00 0x0 0x134db9 0x390228)
0x1cfb3fc8 : 0x19b21c (0x380dd50 0x0 0x19e0b5 0x375c3b4) Backtrace terminated-invalid frame pointer 0x0
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-3403D error when attempting Apple Hardware Test

Hi everyone,
I want to perform an Apple Hardware Test. I restarted, pressed option+D, and a globe appeared. After a minute, however, the following text appeared:
Apple.com/support
-3403D

Your Macbook Pro came with OS X 10.6.x and to run Apple Hardware Test you can use bundled with your Macbook Pro Application Disc:
Using Apple Hardware Test - Apple Support
Your Macbook Pro probably was upgraded to use OS X Internet Recovery as some of the Mac which came with 10.6.x did have that option. It seems like, some of the models might have problem to access Internet AHT:
Computers that can be upgraded to use OS X Internet Recovery - Apple Support
About the "Apple Hardware Test does not support this machine" message - Apple Support
Not sure what error -340D means but if you haven't tried yet, i would suggest to turn OFF your router and after 2-3 mins turn ON again. Try with different network as very often issues with starting Mac in Internet Recovery are caused by network settings. This could be the same issue...

What does the error from my Apple Hardware Test mean?

I was doing some maintenance on my iMac G5 (Ambient Light Sensor) this past week and found that my Video RAM might be bad.
My first clue was that when I used the 'option' key on boot, one of the resulting screens was covered with vertical lines of about 1/16 of an inch.
My second clue was that after running the Apple Hardware Tests, iMac Version 2.5.1 (the one that came with my iMac's original 10.4 Tiger installation disks), I was told there was a Video RAM error, but am not sure if I copied it right because all the little vertical lines. Here is what the AHT reported:
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2ATI/1/4 113-xxxxx-117
** ERROR ** ** ERROR ** ** ERROR **
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Thanks.

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Hi I've been experiencing some problems with my mac it gets to hot fans nerver go up not even with smc fan control installed and some times it freezes so i decided to run the apple hardware test that comes with the machine and during the memory part it showed me this error code
4MOT/1/40000003:HDD
Does any one know what this means or have any idea with what part of the machine it can be related to
Thanks hope sombody answers

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Where do I find a list of error meanings for Apple Hardware Test?

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