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No COMMS Recovery Procedure For Blanked Module (5876)

Publication date: 2009-01-01
Reference number: 5876

NO COMMS RECOVERY PROCEDURE FOR BLANKED MODULE

NO COMMS RECOVERY PROCEDURE FOR BLANKED MODULE

TECHNICAL SERVICE BULLETIN

Reference Number(s): 5876
MAZDA: 2004-2004 Mazda3, RX-8; 2005-2008 Mazda6; 2006-2008 Mazda5; 2007-2008 CX-7
SECTION: MTOL

APPLICABLE MODELS

APPLICABLE MODELS

Model Starting S/N Ending S/N Model Spec
CX7 2007-2008 000000 ZZZZZZ
Mazda3 2004-2008 000000 ZZZZZZ
Mazda5 2006-2008 000000 ZZZZZZ
Mazda6 2005-2008 000000 ZZZZZZ
RX8 2004-2008 000000 ZZZZZZ

RELATED CATEGORY/SUBCATEGORY/SYMPTOMS

Engine / On-Board Diagnostics / Improper Operation

Engine / Symptom Troubleshooting / Engine No Start

MTOL - 5876 DEALER REPAIR INFORMATION

Symptom and Conditions

During PCM reprogramming, occasionally, due to software inconsistencies, PTU battery failures, DLC cables being accidentally disconnected, the PCM module may be come blanked/erased and the vehicle may not start. In this case, follow the below procedure to try to recover the MODULE, reprogram the as-built data and/or calibration data back into the MODULE. This procedure is known as "The NO COMM's Recovery Method".

Repair Procedure

NOTE: Please refer to SSB #01-030/08 for additional details regarding Module Reprogramming Precautions.

YOU MUST FOLLOW THESE INSTRUCTIONS EXACTLY OR THE PCM MAY NOT RECOVER!

  • Battery charger should be connected to vehicle battery and set to less than 20 AMPS charge rate.
  • IDS laptop should be connected to 110V-115V.
  • RE-START THE IDS LAPTOP BEFORE STARTING THE PROCEDURE.
  1. Connect M-MDS via DLC cable to vehicle.
  2. MAKE SURE THE IGNITION KEY IS IN THE OFF POSITION!
  3. ID the vehicle normally. DO NOT TURN ON THE KEY AS M-MDS ASKS YOU TO DO! WAIT UNTIL YOU ARE INSTRUCTED TO DO SO.
  4. The Blue Progress Bar will go across and sit idle for 2 min.
  5. The screen will change and will say "No communication can be established would you like to re-try"?
  6. Select "NO".
  7. Screen shows "Set ignition switch to the off position", it is already off. Press tick.
  8. Screen shows "Set ignition switch to the on position", DO NOT turn on just press tick.
  9. Screen shows "Set ignition switch to the off position", it is already off. Press tick.
  10. Screen shows "Set ignition switch to the on position", DO NOT turn on just press tick.
  11. Screen shows "The diagnostic tester is unable to communicate with this vehicle. You will be prompted to select a vehicle from the list. Press tick.
  12. Select "All Other" at top of the list. Press Tick.
  13. Screen shows "To enable diagnostic tester to identify the PCM, please enter one of the following on the next screen, PCM part number, Calibration number or Tear tag number. Press tick.
  14. Enter the PCM part number PRINTED ON THE PCM. Press tick.
    NOTE: Use the first 4 characters and last letter (Example: N3H4*****B)
  15. Screen shows Vehicle specification screen, if all is correct, select YES.
  16. Select tool box icon at top of the screen.
  17. Select module programming. Press tick.
  18. Select module reprogramming, PCM, press tick.
  19. Screen shows "A later calibration is available. Do you want to program the PCM with it". Select "YES".
  20. Screen shows "Ensure vehicle battery is in good condition and all accessories are turned off". Press tick.
  21. Screen shows "It is recommended that you carry out Self Test to identify any DTC that may be present". Select "NO".
  22. Screen shows a list of reprogramming issues related to the vehicle. Press tick
  23. Screen shows "set ignition switch to off position" it is already off. Press tick.
  24. Screen shows "Please read the following information carefully.
    NOTE: Start a reprogramming session with a low battery in the vehicle and or programming tool. The fuel pump and the cooling fan's may run during the following procedure". Press tick.
  25. Screen shows "Set ignition switch to the ON (Position 2)". Do this and press tick.
  26. Screen shows "Downloading data, PCM programming please wait".
  27. Screen shows "Set ignition switch to OFF (Position O)". Do this and press tick.
  28. Screen shows "Module programming, operation in progress".
  29. Screen shows "Set ignition switch to on position". Do this and press tick.
  30. Screen shows "Set ignition switch to off position". Do this and press tick.
  31. Screen shows "Calibration has been loaded and checked". Press tick.
  32. Screen shows "If required obtain a PCM reprogramming label and complete with the following data "Date""Part#". Press tick.
  33. Screen shows "Operation success, Programming complete". Press tick.
  34. Screen shows "Set ignition switch to the ON (Position 2)". Do this and press tick.
  35. Screen shows "Clearing fault codes".
  36. Screen shows "Set ignition switch to OFF (Position O)". Do this and press tick.
  37. Module recovery is now complete.
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