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RhinoPower EFI -> RhinoPower Forum -> Suzuki ECUs -> ECU k-line pin7 no voltage, Flashing checkengine code 17???
Post Info TOPIC: ECU k-line pin7 no voltage, Flashing checkengine code 17???
TechSupport


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RE: ECU k-line pin7 no voltage, Flashing checkengine code 17???
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The SDL cable only works with the older profile. Its not just Suzuki, Mazda use a similar protocol, there is no reason to use OBD2 unless you have to its slow and limited in its capabilities.



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1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine
2000 Suzuki Vitara 1.6 8V, many mods
2004 Suzuki Ignis 1.5VVT 4Grip
2006 Suzuki Jimny 1.3VVT JLX+
and many more.
kabani


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What about the usb cable and rhinopower software? Those suzuki guys cant be that evil.. I just want to read some basic stuff. not write....



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TechSupport


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KWP2000 has two different addressing schemes each with 255 modes, OBD2 only uses one addressing scheme and 10 modes - OBD2 scanners only support those ten modes. Only Suzuki tools work.



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1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine
2000 Suzuki Vitara 1.6 8V, many mods
2004 Suzuki Ignis 1.5VVT 4Grip
2006 Suzuki Jimny 1.3VVT JLX+
and many more.
kabani


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Posts: 6
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damn, so my port knows when the correct tool is connected..? like a handshake.... I have tried with at least 4 scanners...all of them supporting KWP..
What are my options? suzuki scan tool is not an option. Too expensive.



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TechSupport


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If you are not in the EU then you probably don't have support for OBD2. The standard communication protocol is KWP2000 but not using OBD2 standard modes because OBD2 is very limited in its capabilities, OBD2 ECUs have both methods of communication but OBD2 tools won't work with other modes.

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1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine
2000 Suzuki Vitara 1.6 8V, many mods
2004 Suzuki Ignis 1.5VVT 4Grip
2006 Suzuki Jimny 1.3VVT JLX+
and many more.
kabani


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Posts: 6
Date:
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Thanks again TechSupport!!!

I found that the sensor was just disconnected. I just started the engine and the light did not turn on..

It was tricky to get it done without removing anything else. 
I hope I feel a difference when I go out later.

If anybody has an idea about the K-line pin voltage I am all hears...



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kabani


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Wow.. I was slipping on ice.. 

Thanks for getting me back on track.. I'll get to checking/fixing that. It makes total sense.. The light came on after throttle body removal for cleaning purposes. Maybe the connection was damaged then. After that I was so happy about the result in throttle response that I "ignored" the checkengine light for a whole year.. Shame. 

 

There's the thing with the k-line for obd2 readings. I did more testing. It has 0Volt in off and acc position but 12V in IGN and On position. That should tell me that the aftermarket radio might not be related as it turns on in Acc position. Is it true that the voltage should be like no more than 9V.? I've also read that the line might shorted or grounded.. Still haven't found a source.. 

I have two multiprotocol obd2 readers. They turn on cannot communicate with the Ecu. They worked on other old vehicles. 

 

 



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TechSupport


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The codes are a little different for those Jimnys - code 17 is a knock sensor circuit malfunction. The FSM can be downloaded here:
www.rhinoman.org


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1984 Suzuki SJ413K pick up, 1.6 16V Baleno engine
2000 Suzuki Vitara 1.6 8V, many mods
2004 Suzuki Ignis 1.5VVT 4Grip
2006 Suzuki Jimny 1.3VVT JLX+
and many more.
kabani


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Posts: 6
Date:
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I have 2003 Jimny JLX.

I have been trying to communicate with the ECU. There is continuity between DLC and ECU pins. But something caught my attention. There is no voltage in the k-line pin 7. I have read in someplaces that there should be some voltage and that aftermarket radios might be cause (actually dlc and radio are one same fuse circuit so it made some sense.)

Have anybody had a similiar problem...??

I already disconnected the radio. I am running out of ideas.

 

On the other hand, I tried to get a code read using the jumper to get the check engine light flashing..

From what I saw. 1 blink, then 7. In any manual have I found that code.

ECU  33921-81AU / 081AS

Please Help!



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