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Thread: Need help with wiring in an OBD plug for the 1JZ/2JZ VVTI JZX110/JZS171/JZS161

  1. #1
    Forum Member 1st year Apprentice
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    Question Need help with wiring in an OBD plug for the 1JZ/2JZ VVTI JZX110/JZS171/JZS161

    Does anyone know how to wire an OBD plug with the 1jz VVTI jzx110/jzs171 ECU? Same as the Aristo 2JZ VVTI.

    I've done a conversion into another car using the stock jzs171 ecu, I can see the SIL pin on wilbos 2JZ VVTI wiring page is used to output OBDII information from the ECU but I'm not sure how I would wire in a connector.

    I've found this link: [http://www.2jzgarage.com/2013/01/2jz...Kc1KQZVIfc_pk) which tells me how I can view the OBD information on my phone using a bluetooth scanner but I need a pinout or something to wire in the plug if anyone can help.

  2. #2
    C2H5OH Powered Automotive Encyclopaedia George's Avatar
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    Default Re: Need help with wiring in an OBD plug for the 1JZ/2JZ VVTI JZX110/JZS171/JZS161

    see my recent article on the topic
    https://www.lextreme.com/scan-tools-...-engine-swaps/
    USSR GAZ24 with 1UZ-FE VVTi (UCV24) http://www.toymods.org.au/forums/showthread.php?t=60301
    Engine conversion is when you drive a shitbox which costs a whole LEXUS to own

  3. #3
    Forum Member 1st year Apprentice
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    Default Re: Need help with wiring in an OBD plug for the 1JZ/2JZ VVTI JZX110/JZS171/JZS161

    Awesome, thanks for that. Just a couple of questions: on the diagram it runs 12v off the battery, this won't drain it will it? And I'm guessing TC pin goes to #5 signal ground?

  4. #4
    Forum Member 1st year Apprentice
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    Default Re: Need help with wiring in an OBD plug for the 1JZ/2JZ VVTI JZX110/JZS171/JZS161

    Looks like TC just goes to pin 13, so I guess pin 5 is just another chassis ground?

  5. #5
    RZN169R+2JZGTEVVTI+R151 Domestic Engineer madmont's Avatar
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    Default Re: Need help with wiring in an OBD plug for the 1JZ/2JZ VVTI JZX110/JZS171/JZS161

    TC goes to pin 13 SIL goes to pin 7 Earth is pin4 12v to pin16. I use a Launch Creader VI+ to read codes and an ELM327 [I use HH OBD ADVANCED unit ]with my smartphone running inCarDoc Pro to see live feed. Pay the few dollars for the Pro version.
    Last edited by madmont; 06-05-2020 at 07:42 AM.
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