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[Solved] Mazda MPV 2003 2.0L: PCM RF5G Replacement & DTC P1603 Error Code - Need Help!

Lang_yyyy 2907 10
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  • #1 17303322
    Lang_yyyy
    Level 8  
    Hi guys, I need help. I change pcm on Mazda 2.0 2003. Now I have an dtc P1603.
    Pcm : RF5G

    Dump in attachment. Thanks!
    Attachments:
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  • Helpful post
    #2 17303734
    seat21
    Level 29  
    old eprom and new eprom attachment and hc05b32 immo box
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  • #6 17304288
    Lang_yyyy
    Level 8  
    I wrote this bin to PCM and now I have DTCs P1621 and P1624
  • #8 17304314
    Lang_yyyy
    Level 8  
    seat21 wrote:
    immo box connected


    It is!
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  • #10 17304347
    Lang_yyyy
    Level 8  
    Love you man! It's working perfectly! Thank you a lot!
  • #11 17304349
    Lang_yyyy
    Level 8  
    Love you man! It's working perfectly! Thank you a lot!

    Dodano po 1 [minuty]:

    Special Thanks to seat21
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Topic summary

The discussion revolves around the replacement of the PCM (Powertrain Control Module) in a 2003 Mazda MPV with a 2.0L engine, specifically using the RF5G model. After the PCM replacement, the user encountered a DTC (Diagnostic Trouble Code) P1603. Various users provided assistance by sharing EEPROM dumps from both the old and new PCM, as well as from the immo box. The user initially faced additional DTCs P1621 and P1624 after attempting a new bin file but eventually resolved the issue with a suggested bin file, leading to successful operation of the vehicle. Special thanks were given to a user named seat21 for their help.
Summary generated by the language model.
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