Quote:
Originally Posted by 06sport
I am impressed with your knowledge. 
I was not aware the limited smart key had a separate system which acts as the receiver for the remote keyless entry. Ive had many Toyotas over the years. (currently 91 Supra turbo, 97 Tacoma ext cab 4x4, and just got the 13 4runner limited last fall, so I'm still learning about it). Makes sense that a replacement MPX from a limited would be plug and play.
What is your opinion on the feasibility of having the orig MPX repaired? It appeared to burn the diodes D022 and D024. |
Thanks, and hold on to that Supra and Tacoma.
I don't think it's possible to have the original MPX repaired. When those two Diodes burn out (I am assuming you have seen the thread on the other site?) It destroys the traces on the circuit board and or melts the layers effectively making the chance of repair 0%. Plus, I don't know what else might have been damaged. Best option is to replace the MPX with a used limited MPX, and remove whatever bulb(s) you have been using. Put the OEM ones back in, or some good quality LEDs. Like others have said, there is no fuse protection between the MPX ECU and those lights, so a short effectively cooks it (Poor design by Toyota).
On the Limited Smart Key system, you have multiple ECUs (5) in the direct smart key system beyond the MPX and ECM. It's a lot just for push button start, but still a cool system nonetheless.
