2JZGTE VVTi Diagnostic Engine Codes (Check Engine Light)

[davewanna]

Wilbo,

Did you have good success reading the OBD info from your atmel project in the past?

Cheers
Dave

[Gavatron]

Toyota scan tool is called Intelligent Tester 2. They use the above for codes, starting with P meaning powertrain related. Was going to mention this when you listed old style codes.

THIS TSRM only mention OBD2 style DTCs. It also used the DLC3 connector in cabin to connect the the IT2 to pull codes. I don't know what the codes you got mean, becuase on the newer cars you can't pull codes manually. This manual only mentions connecting Tc and E1 on the DLC1 connector in the engine bay to check base timing.

[cambelt]

JZA 80 has the OBDII port but it has rumoured that its not US/AUS OBDII complient , most of its pins go direct to the engine ecu as it doesnt have a body ecu or multiplex.
Seems like half the faults you get with cars electrics a generic scanner cant solve anyway, so its back to the dealer to pay $$$ .
Wilbo theres 7 solonoids in the VVTi box and 1 O/D speed sensor , so theres 8 codes ? there.
ps, I got the plates and cd , will send some $$ thru to you.
Dave

[wilbo666]

davewanna: I had some success, but got busy and stopped looking at it!

Gavatron: Hmm interesting, I'm also at a bit of a loss!

cambelt: Good to hear bit arrived, hope they are of some use you Don't worry about the postage, tis OK


I'll see if I can pull codes from the JZS161 engine ECU in the same fashion as the JZA80 engine ECU when I get a chance...

The codes I got were...I didn't move the car... so that could be the 7 solenoids Dave
46, 62, 63, 65, 68, 76, 77

Cheers
Wilbo

[wilbo666]

Today I pulled some codes from the JZS161 ECU via connecting Tc to E1...

Codes 21 (O2 sensor on pre-ODBII, which is correct as it was unplugged) and code 82...

What say you to that Mos?

Perhaps code 82 is "where is my Body ECU?"

Cheers
Wilbo

[skiddz]

perhaps code 82 "is oh god please finish the ra60 trailer"

thats enough from me, although i am intrigued the 2gayzee's have a bit of my interest of late

[wilbo666]

perhaps code 82 "is oh god please finish the ra60 trailer"

Alas that project went the way of the Dodo due to time pressures

Cheers
Wilbo

[thechuckster]

maybe code 82 is "my JZA80 boot contains 5 bananas and as such is full"

[madmont]

Wilbo there are a few transmission codes listed on this site which match some of the numbers you mentioned
http://www.lexls.com/tutorials/intro/codereading.html

[Mos]

I have read some methods involving using the Tc pin instead of the Te1 pin.

Sorry, you're right. Tc is the test pin for a multitude of systems (ABS, TRC, Cruise, etc) and on the newer systems it takes care of Te as well. Some older systems had both Te and Tc.

I do have a Tc pin in my engine bay loom, but shorting it to earth didn't seem to make the light blink. Perhaps I'm doing it wrong.

Is the Tc pin populated? There are many situations where a pin is only populated in one of the two diagnostic connectors, and sometimes when covered with grease it's hard to tell if the pin is there or not.
There are also a number of conditions (ie A/C off, Neutral, operating temp) that in theory you need to fulfil to enter diagnostic mode (it also drops timing to a static 10 degrees). [I say in theory, because I haven't checked it, but I've had problems in the past with other engines not entering diagnostic mode if things like the TPS wasn't set correctly and wasn't closing the IDL contact.]

According to the Tacoma manual I have (closest thing to a hilux I could find) the ODBII protocol is supported by my scan-tool. But I am yet to find out which pin on the ECU is the signal line. Seeings I don't have the body-loom for my engine. But also Hilux's don't have a body ECU that I am aware of.

Try the SIL pin

Is there another thread for this? I feel bad for highjacking wilbo's thread.

That's not a problem - your discussion is constructive and brings information to the thread, so while strictly not solving wilbo's problem it increases the wealth of knowledge, so it's all good

If it is ISO protocol Should be the SIL pin on the ECU which goes to number 7 pin on the 16 pin OBD2 connector

The Engine ECU has a pin marked SIL, which as Madmont rightly points out goes to the ECU and the standard OBDII connector

Sorry guys - on both the IS200 and 97-00 LS400 the SIL pin on the ECU goes to pin 7 of the OBD2 connector, however it also goes to Body ECU (and ABS/TRC/VSC ECU and Airbag ECU).....
My apologies for misinformation .. I guess I made the mental shortcut as I didn't need to worry about running SIL to any diagnostic connector (coz it was on both ECUs..)

THIS TSRM only mention OBD2 style DTCs. It also used the DLC3 connector in cabin to connect the the IT2 to pull codes. I don't know what the codes you got mean, becuase on the newer cars you can't pull codes manually. This manual only mentions connecting Tc and E1 on the DLC1 connector in the engine bay to check base timing.

Hmm when you say "newer cars" how newer do you mean? My RM684E1-2 for the 99- GXE10 (not sure when it stops - guessing 01 or 02) mentions the Tc pin as well as the toyota scan tool, and it does the base timing check in one section, however the "short Tc to E1 and read blinks" procedure applies to pretty much all the systems.
It has the Pxxxx/yy, Bxxxx/yy, Cxxxx/yy, etc scantool (xxxx) codes, as well as the blink (yy) codes listed, with sometimes yy codes applying to 6 or more xxxx codes (ie misfires, ignitors, etc - one yy code for 6 xxxx codes). Euro spec codes don't seem to list the yy blinks...

The codes I got were...I didn't move the car... so that could be the 7 solenoids Dave
46, 62, 63, 65, 68, 76, 77

From GXE10 manual:
46 - not listed (it has P0500/42 - SP2)
P0753/62 - S1
P0758/63 - S2
P1755/68 - SLU (lockup solenoid)
76 - not listed (could be accumulator pressure solenoid)
P1760/77 - SLT (line pressure solenoid)[The Euro version lists this P1760 code as the accumulator pressure solenoid....]

There is also P0715/67 which is NE speed sensor, but I'm not sure if that produces an output when stationary.

Codes 21 (O2 sensor on pre-ODBII, which is correct as it was unplugged)

P0130/21 - Ox circuit malfunction, Bank 1, Sensor 1
P0133/21 - Ox circuit slow, Bank 1, Sensor 1 (Euro spec)
P0135/21 - Ox heater circuit malfunction, Bank 1, Sensor 1
P0141/21 - Ox heater circuit malfunction, Bank 1, Sensor 2
There's also a bunch of 27 and 28 codes which correspond to these but different sensor/bank, though I'm not sure if some of them are misprints (they don't fit the patterns).
Anyway, Ox

and code 82...
What say you to that Mos?

You mean other than "BWHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA"

Perhaps code 82 is "where is my Body ECU?"

HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHBHAHAHAIHAHAHANAHAHAHGHAHAHAHOHAHAHA
P1645/82 - Body ECU malfunction



Mos.

PS. This post took way way way too long to write....

[Gavatron]

Hmm when you say "newer cars" how newer do you mean?

Basically anything that is only a CD based manual at work. So sometime after 2000ish.

[Mos]

Basically anything that is only a CD based manual at work. So sometime after 2000ish.

Just to clarify, do the manuals not mention it, or do they specifically say it doesn't work?

[Gavatron]

They just don't mention it. I wouldn't be surprised if you can bridge a pin in the DLC3 connector to earth and get it to flash something. But there are no 'flash codes' listed in the manuals, as far as I have found.

Much easier to use the IT2 at work anyway

[wilbo666]

Thanks Mos, madmont... that info does help...

My suspicion of code 82 being body ECU was right it seems... doh! lol

Cheers
Wilbo

[madmont]

here is a nice list of auto codes for you
http://home.exetel.com.au/monty/auto codes.pdf