W203 2002 Mileage
Register
Results 1 to 7 of 7
  1. #1
    DK Veteran

    Join Date
    Jun 2017
    Location
    Pretoria, South Africa
    Posts
    373
    Thanks Thanks Given 
    125
    Thanks Thanks Received 
    29
    Thanked in
    18 Posts

    Default W203 2002 Mileage

    Good day

    I have w203 to correct mileage
    Tried to read incircuit woth orange but failed want to know witch mcu I must read
    And asking for incircuit pinout please..

    Thank you

    Sent from my HUAWEI CAN-L01 using Tapatalk

  2. #2
    DK Veteran
    dominik.m's Avatar
    Join Date
    Jun 2009
    Location
    POLAND
    Posts
    3,427
    Thanks Thanks Given 
    409
    Thanks Thanks Received 
    2,635
    Thanked in
    1,461 Posts

    Default

    In ezs module are 2 MCUs HC908.The MCu on optocoupler side(two gray optocouplers) is the right one.
    See picture in Image for more details.
    Attached Images Attached Images

  3. The Following User Says Thank You to dominik.m For This Useful Post:

    BraLaas (17th January, 2019)

  4. #3
    DK Veteran

    Join Date
    Jun 2017
    Location
    Pretoria, South Africa
    Posts
    373
    Thanks Thanks Given 
    125
    Thanks Thanks Received 
    29
    Thanked in
    18 Posts

    Default

    Quote Originally Posted by dominik.m View Post
    In ezs module are 2 MCUs HC908.The MCu on optocoupler side(two gray optocouplers) is the right one.
    See picture in Image for more details.
    Do you mabe have connection for me friend have tried connection but failed

    Sent from my HUAWEI CAN-L01 using Tapatalk

  5. #4
    DK Veteran
    dominik.m's Avatar
    Join Date
    Jun 2009
    Location
    POLAND
    Posts
    3,427
    Thanks Thanks Given 
    409
    Thanks Thanks Received 
    2,635
    Thanked in
    1,461 Posts

    Default

    MCU connection.
    Attached Images Attached Images
    Last edited by dominik.m; 17th January, 2019 at 04:25 PM.

  6. The Following User Says Thank You to dominik.m For This Useful Post:

    BraLaas (17th January, 2019)

  7. #5
    DK Veteran

    Join Date
    Jun 2017
    Location
    Pretoria, South Africa
    Posts
    373
    Thanks Thanks Given 
    125
    Thanks Thanks Received 
    29
    Thanked in
    18 Posts

    Default

    Quote Originally Posted by dominik.m View Post
    MCU connection.
    Power and ground where they are and the others on mcu legs..??
    Need to remove components..??

    Sent from my HUAWEI CAN-L01 using Tapatalk

  8. #6
    DK Veteran
    dominik.m's Avatar
    Join Date
    Jun 2009
    Location
    POLAND
    Posts
    3,427
    Thanks Thanks Given 
    409
    Thanks Thanks Received 
    2,635
    Thanked in
    1,461 Posts

    Default

    It is best to read on board. Because this MCU is secured. Like this one:
    $8F-$7E-$7A-$5C-$B3-$87-$B6-$7B=MC68HC908AZ60 (2J74Y)

  9. #7
    DK Veteran

    Join Date
    Jun 2017
    Location
    Pretoria, South Africa
    Posts
    373
    Thanks Thanks Given 
    125
    Thanks Thanks Received 
    29
    Thanked in
    18 Posts

    Default

    Quote Originally Posted by dominik.m View Post
    It is best to read on board. Because this MCU is secured. Like this one:
    $8F-$7E-$7A-$5C-$B3-$87-$B6-$7B=MC68HC908AZ60 (2J74Y)
    Do u have mcu connection

    Sent from my HUAWEI CAN-L01 using Tapatalk

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
This website uses cookies
We use cookies to store session information to facilitate remembering your login information, to allow you to save website preferences, to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.