Search Results for ‘ecu’

Hello all! I hope everything is well. I currently own 2 Siennas (01 XLE 130k miles, 02 XLE 202k miles) The issue that I am having with my 01 Sienna is that about 2 months ago it started misfiring, I replaced all the spark plugs (bosch double iridium), and coils (OEM Toyota/Denso coils) I...

Hello all! I hope everything is well. I currently own 2 Siennas (01 XLE 130k miles, 02 XLE 202k miles) The issue that I am having with my 01 Sienna is that about 2 months ago it started misfiring, I replaced all the spark plugs (bosch double iridium), and coils (OEM Toyota/Denso coils) I...

It looks like a new recall just posted.

Recently my sienna has been running a little rough. Thinking it was because the transmission was low I topped it off but it still ran rough when I put it in gear. After driving for a few minutes it would run smoother but stumble a little when accelerating. One day I went to start the car and it...

Friends, I wanted to virginize the 93C56 immobilizer in my 89661-08070 ECU and so I bought the CH341A mini programmer. I later found out that it was made for Windows XP and I don't know how to get it to work in Windows 10. Also GitHub says that the software is dangerous. Do anyone know of an...

Looking for inspiration (what do I try next/anyone had anything similar?) - I've solved a lot of problems reading this forum for the last 5 years. 2004 Sienna LE with 2 long-term problems: 1. can't pass emissions because the 3 sensors (cat, evap, o2) have been "not ready" for over a year; 2...

I am needing some advice once again. I know online on several forums including this one alone there are several several threads about dead power sliding doors. I have posted a couple times myself about ours. We finally had the dealer put it on the computer and check the doors it was 49.00 at...

Does anyone know how to reset the ECU on Sienna? Please let me know if you have any ideas! Much appreciate it!

I have a 2013 Toyota Sienna LE 3.5L I wanted to connect an emergency flashing 12V device (purchased online) to my stop lights. For that, I tried to connect it to the brake pedal switch (which has 4 wires) one is constant 12V another is giving 12V when you hit a brake pedal, and the other two I...

Hello Forum Members. I have searched these forums related to the hesitation I have experienced from a standstill, clunky shifting, and wrong gear selection when climbing hills, so I was not surprised when the local transmission shop recommended that I rebuild the transmission. My 2005 XLE AWD...

The driver's side folding mirror on my 2007 Sienna XLE was damaged somehow. The retracting motor would spin any time the car was running and it was clear the gears were not engaging. Whatever limit switch tells the door CPU to stop the motor wasn't tripped. The passenger side mirror retracted...

Hello, I fried my original ECU by making a mistake during a head unit install detailed in another post. I purchased a working ECU from the same exact van, a 2009 Sienna LE, and all numbers on both EUCs match. Once I installed the new ECU, I realized it needed to be programmed since the engine...

Hello i changed the engine on my sienna 3.5 after changing the engine drive for a couple miles and engine started to rev up and now it's revved up at all time hot and cold I've heard that I have to reprogram ecu is this true. ?

Here's a good one. I recently purchased an ECU with updated logic (part number 89661-08072 to replace 89661-08070), and have installed it into my 2002 Sienna. My engine will not start, and I get the error code B2796 "No Communication in Immobilizer System" in Techstream. The problem is that...

Where is A/C ECU located for automatic A/C on a 2007 XLE?

Just purchased a new to me 2007 LE with 68k miles and the only thing I can find wrong with is the TPMS light stays on. In the service history, it notes that it needs a TPMS ECU and Antenna. Any ideas on where to pick this up or for that matter what they run? Being the ECU and not the...

Hi, I have a Toyota Sienna 2002 - check engine light is on. Dealer says I have to replace the Engine Control Unit ~ $1800. There was a recall on them if they went bad before 2008. Mine went bad this year. ??? Any suggestions? thanks, Paul

I'm trying to install an iPod interface (USA Spec PA20-TOY). There is single comment on the install instructions that newer Sienna's with navigation systems and RSE (rear seat entertainment) should make the connection at the navigation ECU, not at the back of the head unit. This is great; the...