Ecu part number differences?
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Ecu part number differences?
Does any know the difference between the part number 89661-24313 and 89661-2431384 or what the 84 means in general. Can’t seem to find any information on this. Thx.
#2
Lexus 89661-24313-84 Reman TCCS Computer
1993-1995 Lexus 896612431384- Part Description
Control Module - Replaces
89661-24313 - Manufacturer
Lexus
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LeX2K (02-27-24)
#3
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The "-84" addition onto any Toyota part number (usually for anything electronic such as an ECU) is just there to denote that it's a factory Toyota remanufactured part. It is exactly the same thing as the same part bearing the main number *without* "-84". Toyota just took some of these original parts, remanufactured them (via re-capping, testing of whatever chips they want to and giving them presumably some kind of final QC testing process that the reman part passes in order to be sold in inventory).
A revision part number doesn't involve the "-84" addition. A revision would be like 89661-14320 being the original ECU which is then superseded later by the revised part number 89661-14321... or a final revision of 89661-14322. A revision is always just a change to the very last number in an ECU part number. Same ECU compatibility if so listed in the Toyota/Lexus system (or our big list of SC ECU part numbers from everyone's submissions over the years) but in those cases Toyota did indeed do something or other to update a chip or something else either with a small programming or small reliability refinement.
Then even later you could see revisions of any ECU part number but usually not the very first ones. Using those same example ECU P/N's you would theoretically see in the wild:
89661-14320-84, 89661-14321-84 or 89661-14322-84.
Apply this breakdown methodology to whichever ECU P/N is specific to your SC. I hope this helps!
A revision part number doesn't involve the "-84" addition. A revision would be like 89661-14320 being the original ECU which is then superseded later by the revised part number 89661-14321... or a final revision of 89661-14322. A revision is always just a change to the very last number in an ECU part number. Same ECU compatibility if so listed in the Toyota/Lexus system (or our big list of SC ECU part numbers from everyone's submissions over the years) but in those cases Toyota did indeed do something or other to update a chip or something else either with a small programming or small reliability refinement.
Then even later you could see revisions of any ECU part number but usually not the very first ones. Using those same example ECU P/N's you would theoretically see in the wild:
89661-14320-84, 89661-14321-84 or 89661-14322-84.
Apply this breakdown methodology to whichever ECU P/N is specific to your SC. I hope this helps!
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LeX2K (02-27-24)
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KahnBB6 (02-29-24)
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