Engine, A/T Controls - Update ECM With A/T Replacement
06-004October 22, 2011
Applies To:
2003-04 MDX - ALL
Update PCM with Transmission Replacement
(Supersedes 06-004, dated July 26, 2011, to update the information marked by the asterisks)
REVISION SUMMARY
*Under WARRANTY CLAIM INFORMATION, the flat rate time was changed.*
BACKGROUND
Updated PCM software has been developed that may improve transmission durability under certain, very specific driving conditions.
CORRECTIVE ACTION
Update the PCM when installing a remanufactured transmission.
WARRANTY CLAIM INFORMATION
In warranty:
The normal warranty applies.
Operation Number: 223517
*Flat Rate Time: 0.3 hour*
Failed Part: Use the RM part number (from the
repair order) without the RM.
Example: 06200-PY4-A00
Defect Code: 58400
Symptom Code: 01201
Skill Level: Repair Technician
REPAIR PROCEDURE
NOTE:
^ Before you update the PCM, make sure the vehicle's battery is fully charged.
^ To prevent PCM damage, do not operate anything electrical (audio system, brakes, A/C, power windows, etc.) during the update.
^ During the update process, the HDS screen may go blank. This does not mean the update is complete. Tap the screen and the display will come on showing the current condition of the update. Do not disconnect the HDS until the update is complete.
1. Install the remanufactured transmission:
^ Refer to page 14-219 of the 2003-06 MDX Service Manual, or
^ Online, enter keyword TRANSMISSION, and select Automatic Transmission Installation from the list.
2. If not already done, load the latest available software update onto the HDS.
*3. Update the PCM software. Refer to Service Bulletin 01-026, Updating Control Units/Modules.*
4. Do the idle learn procedure:
^ Make sure all electrical items (A/C, audio unit, defogger, lights, etc.) are off.
^ Start the engine, and let it warm up to its normal operating temperature (the cooling fans cycle twice).
^ Let the engine idle (throttle closed and all electrical items off) for 10 minutes.
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