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Old 07-30-2011, 11:25 PM   #141 (permalink)
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The car would have to be built and or come into australia on 2006 onwards to be OBDII complient.

I have checked the Suzuki GV it is KWP2000 but has the OBDII part filtered or in otherwords disabled to generic scan tools.

EG any scan tool will not connect, you can get the ELM327 to connect forcing it to KWP2000 5Kbaud, but you wont get data back.

There is a way but suzuki's info is very limited on commands etc.

Me and James AKA Rhino power have been looking at this for many years, it comes down to how much time we have to try and figure out the data streams / supported commands etc etc.

There seems to be a way of turning of the filter on the ECU as I did get data from it once from entering commands from the SDL/KWP2000 information, but I still have to try and make sense of it.

Ausi's have the same emision standards as Europe for differnt Weight class's. and most cars mainly GM ( Holden ) used ALDL untill 2006 where most switched to the CAN protocol.

James cable can work on the SDL protocol but have to figure out the data, and also if i manage we should be able to get data on pin 7 under the KWP2000 protocol as well.
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Old 08-01-2011, 03:34 AM   #142 (permalink)
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james in data viewer in RV set to ECU 0000 i just get 0 in everything. I read on your forrum foredem managed to get something with this RAW ECU ID and ECU ID1901

It seems i can only get the ECU ID and a Echo back, but no other data.

On KWP2000 some requests go through but sometimes get no response most times i get NO DATA.

I sent the start communication sequence which started ok but then i got NO DATA..

The XL-7 ECU seems to be a hard one.

I see the SDT/TIS tool online for under a grand, comes with a Toyota, Suzuki and Memory card, Seems to be for the ISO9141 protocol though so not sure if it will work on KWP2000. Its made by DENSO.
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Old 08-01-2011, 03:59 AM   #143 (permalink)
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That is similar to the Euro ECUs, the OBD1 port is used for programming and for actuator testing but there is no support for live data on that port. I had a hard drive failure last week and I'm still operating on limited back up systems. I will get the Swift ECU back up and running on the bench and run some tests on that, I also have access to an Alto with KWP2000 as well. I'm sure that we will be able to get the data from the OBD2 port using the ELM tool, we just need to determine the correct commands to send.
The SDT tool is Chinese clone - I'm tempted to buy one but I'm concerned about the reliabilty of it and how much support it has for non-US markets.
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Old 08-01-2011, 04:22 AM   #144 (permalink)
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Bummer on the hard drive crash. I have raid and at least one had drive has to crash once a week so they rebuild themselves quite offten.


I think the ELM has issues communicating as its not standard OBDII, it uses the KWP2000 Handshake but then uses Specific suzuki commands.

I managed to bypass all the ELM stuff and talk directly to the ECU, i then got back data but I dont have the brain capacity or time to work it all out at the moment.

I found this info on people who are hacking the HyBUssa ECU which seems to be very similar, eg OBDII but only on connection they found these commands.

10 Start comunication
11 ECU Reset
12 Read Freeze frame data
13 Read Diag Trouble codes
17 read status of diag info
18 read diag trouble codes by status
1A read ECU ID
20 Stop Diag Sesion
21 Read Data by local ID
27 Security Access
34 Request Download
35 Request upload
36 transfer data
37 transfer exit
3E Tester Present
81 Start Communication
83 Get Timing Parameters
85 Get Timing mode.
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Old 08-01-2011, 04:35 AM   #145 (permalink)
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That looks plausible, a number of the functions correspond with the Suzuki specific commands used on the North American KWP2000 ECUs. What did you send and receive?
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2006 Jimny, 1.3 VVT, stock
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1986 SJ413K pick-up with G16B conversion
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Old 08-01-2011, 06:40 AM   #146 (permalink)
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I assume that you are looking at this protocol:

SDS protocol - ECU hacking

I am a member on that board but I don't visit too often, I was working with Psyche on developing the tools for reflashing the 16-bit bike and car ECUs so I didn't take much notice of the serial link stuff once it was ascertained that it was different to the car stuff I was working with. It looks to be a definite possibility and the era is right too.
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2006 Jimny, 1.3 VVT, stock
2000 Vitara 1.6 8V, Calmini 3+3, 33 MTs, 5:83R&Ps, remapped ECU
1986 SJ413K pick-up with G16B conversion
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Old 08-01-2011, 06:52 AM   #147 (permalink)
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yep thats the website.

I didnt write down what i got from my ecu apart from what i sent you earlier.

I will have to attempt it again. Being a chinese nock of elm327 it doesnt support all its features so its a bit limited. from memory i sent the start communication sequence and got back data which was simalar to what i was ment to get back acording to the Suzuki SDL/KWP document.
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Old 08-01-2011, 07:28 AM   #148 (permalink)
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I'm looking over their logs now, what I do see is that they are using the length byte in their comms, I don't think that the ELM tool supports that, also the ECU address they are using is 12, not 01 or 11, those seem to be the main differences.
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2006 Jimny, 1.3 VVT, stock
2000 Vitara 1.6 8V, Calmini 3+3, 33 MTs, 5:83R&Ps, remapped ECU
1986 SJ413K pick-up with G16B conversion
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Old 08-01-2011, 10:43 AM   #149 (permalink)
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You can use ATSH to force the ELM tool to use the length byte.
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2006 Jimny, 1.3 VVT, stock
2000 Vitara 1.6 8V, Calmini 3+3, 33 MTs, 5:83R&Ps, remapped ECU
1986 SJ413K pick-up with G16B conversion
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Old 08-01-2011, 01:44 PM   #150 (permalink)
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OK I have the Swift ECU hooked up on the bench.

The ELM327 with Palmer Software comes back with:

Quote:
Error 104: Error detecting OBD-II protocol.
Cheapo eBay code reader (T40)




connects straight away KWP fast init
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ECU repairs and modifications for Suzukis http://www.rhinopower.org

2006 Jimny, 1.3 VVT, stock
2000 Vitara 1.6 8V, Calmini 3+3, 33 MTs, 5:83R&Ps, remapped ECU
1986 SJ413K pick-up with G16B conversion

Last edited by Rhinoman; 08-01-2011 at 01:47 PM.
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