Join Date: Mar 2014
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Same issue as everyone else
Our Rav 4 started having transmission issues. On acceleration from stop, it would shift from 1 to 2, then with the accelerator still depressed, would downshift back into 1. When I lifted up on the pedal, it would shift to 3. We took it to the dealer and they said it "might" be the ECM but they wouldnt guarantee it. They wanted to charge us 1k to fix it. Here's a copy/paste from the estimate:
Observations: HARSH SHIFTING BETWEEN 2ND AND 3RD
AS PER TSB 0156-10 RECOMMEND REPLACEMENT OF ECM/PCM , AND RECHECK, VEHICLE MAY STILL NEED TRANSMISSION IF HARSH SHIFT IS STILL PRESENT.
I immediately went to googling and found this thread. Last week I sent my ECM to the guys at Module Repair Pro and got it back on Monday. Installed it yesterday and drove it around in a stop-and-go pattern for about half an hour as they suggested.
All fixed! Works great! Thank you MRP!