Kawasaki Z750 ECU Protocol??
I am trying to connect a Scantool to my 2004 Kawasaki Z750 but it doesnt appear to talk. I am using the ELM327 interpreter Chip with software from scantool.net
If I talk to it with a Terminal program and set the protocol to ISO9141 I see "INIT ... ERROR"
The Kawasaki has a Denso ECU with a 4 pin diagnostic connetor under the seat. The diagnostic connector pins are as follows: (As described in the Mantainance Handbook)
1/ +12volts
2/ Gnd
3/ Self-diagnosis Terminal. If this pin is grounded the ECU will give Blink Codes.
4/ External Diagnosis System Signal. This is connected to terminal 46 on the ECU, and when measured with a multimeter shows approx 7.5 volts at rest.
I am assuming the ECU is talking ISO9141 as it only has a "single wire" for diagnositics and is sitting at 7.5 volts at rest. (Maybe not the correct assumption). I did try VPM which is also single wire interface but had NO success.
The ELM327 has a number of programmable options for ISO/KWP. I have tried all combinations including:
- ISO,KWP slow,KWP slow
- setting ISO interface baud rate to 9600 (Default is 10400)
- Changing the int. address from 33 to 30,03 (just guessing here really)
- Disabling Keyword checking
- Bypassing Init
I have done a buffer dump of the ELM327 and it confirms that I have not received anything back from the ECU.
I know the ELM327 is working OK as I have connected it to 2 cars. a Holden Astra (CAN) and Nissan X-Trial running ISO and can get Sensor/DTC info from them.
Is the Kawasaki really ISO9141? or it running a different Baud rate?
Any Ideas.
regards Neil..