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Need help on 2007 Nissan 14230-4

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  • Need help on 2007 Nissan 14230-4

    Hello,
    I have a Nissan Tiida 2007 and im trying to make a hobby project with OBD2. I tried many apps for any OS and no one can communicate with it. I tried serial terminal too and the response was always BUS ERROR/NO DATA.
    So i found some dumps from unknown app which i tested on my car and they work but i dont know how to interpred them:
    Code:
    REQUEST:  ATZ
    RESPONSE:  ATZ
    RESPONSE:  
    RESPONSE:  ELM327 v1.5>
    
    REQUEST:  ATSP5
    RESPONSE:  ATSP5OK>
    
    REQUEST:  ATE0
    RESPONSE:  ATE0OK>
    
    REQUEST:  ATS0
    RESPONSE:  OK>
    
    REQUEST:  ATH1
    RESPONSE:  OK>
    
    REQUEST:  ATAT1
    RESPONSE:  OK>
    
    REQUEST:  ATST3A
    RESPONSE:  OK>
    
    REQUEST:  ATAL
    RESPONSE:  OK>
    
    REQUEST:  ATSH8110FC
    RESPONSE:  OK>
    
    REQUEST:  ATWM8110FC81
    RESPONSE:  OK>
    
    REQUEST:  3F
    RESPONSE:  BUS INIT: ERROR>
    
    REQUEST:  3F
    RESPONSE:  BUS INIT: OK
    RESPONSE:  83FC107F3F115E
    RESPONSE:  >
    
    REQUEST:  2211000401
    RESPONSE:  87FC10621100E4010001EC
    RESPONSE:  >
    
    REQUEST:  2211200401
    RESPONSE:  87FC10621120000C09114C
    RESPONSE:  >
    
    REQUEST:  1A81
    RESPONSE:  87FC105A3145553430415D
    RESPONSE:  >
    
    REQUEST:  3E
    RESPONSE:  81FC107E0B
    RESPONSE:  >
    
    REQUEST:  3106FFFF
    RESPONSE:  82FC10710605
    RESPONSE:  >
    
    REQUEST:  3206
    RESPONSE:  83FC107F3278B8
    RESPONSE:  
    RESPONSE:  >
    So my understanding is that he uses physical addressing but i am not sure how the pids are encoded in it. Also, the ECU gives BUS ERROR until it receives 3F which i dont know what it means? And why are there some commands without prefix "22": 3206, 3106FFFF, 3E?

    Some identified commands here:
    The following command corresponds to "injector fuel"
    request: 2212060401, ex. responses: 85FC1062120600EBF6, 85FC1062120600E7F2

    The following command corresponds to "Base fuel schedule"
    req: 2212080401, ex. responses: 85FC106212080FCCE8, 85FC106212080FE804

    The following command corresponds to RPM (im not 100% sure about this):
    req: 2212010401, ex. response: 85FC10621201003D43

    Command for Speed: 2211020401, response where the first char is missing: %4FC1062110200 (this is at 0km/h)

    I tested all of the above on the car and they work. ECU gives BUS ERROR on pid 0100 and only gives "BUS INIT: OK" after few "3F" commands.

    Please give me any direction.
    Thanks!

  • #2
    Re: Nissan

    Hi, Have you made it work?

    Have you tried the torque custom init string for nissan?

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