I got a Tranny issue P0761 code
Pit Crew
Joined: Nov 2019
Posts: 120
Likes: 63
From: texas
2. Check the ecu for a repair sticker. SIA adds a sealing sticker for warranty purposes. Most ecu repair places do the same. If no ecu repair sticker ON YOUR CORRECT ECU, you have a choice. 1. Chance the ecu is good abd rebuild tranny or 2. Send the ecu to confirm YOUR CORRECT ECU was repaired.
Unless you have records about which ecu was fixed you only know there are two differwnt ecus and the mechanic statement. For the $115 SIA charges, id sure do that first before rebuilding a trans or valve body.
Pit Crew
Joined: Nov 2019
Posts: 120
Likes: 63
From: texas
But sure, the sticker isnt the warranty.
Thread Starter
Intermediate
Joined: Mar 2022
Posts: 453
Likes: 173
From: CA
1. take your VIN and ask the dealer which ecu part number you have. Make sure you have the right part number in the car.
2. Check the ecu for a repair sticker. SIA adds a sealing sticker for warranty purposes. Most ecu repair places do the same. If no ecu repair sticker ON YOUR CORRECT ECU, you have a choice. 1. Chance the ecu is good abd rebuild tranny or 2. Send the ecu to confirm YOUR CORRECT ECU was repaired.
Unless you have records about which ecu was fixed you only know there are two differwnt ecus and the mechanic statement. For the $115 SIA charges, id sure do that first before rebuilding a trans or valve body.
2. Check the ecu for a repair sticker. SIA adds a sealing sticker for warranty purposes. Most ecu repair places do the same. If no ecu repair sticker ON YOUR CORRECT ECU, you have a choice. 1. Chance the ecu is good abd rebuild tranny or 2. Send the ecu to confirm YOUR CORRECT ECU was repaired.
Unless you have records about which ecu was fixed you only know there are two differwnt ecus and the mechanic statement. For the $115 SIA charges, id sure do that first before rebuilding a trans or valve body.
Thanks for that @Bovineplan . I’ll hit up the dealer tomorrow and ask what the serial number is, good to know.
Thread Starter
Intermediate
Joined: Mar 2022
Posts: 453
Likes: 173
From: CA
I called the dealer and the ECU that’s installed in my car is the correct one, but it’s not the one that was repaired.
Took the car for a 30 mile drive on the freeway and it shifted perfectly fine with no CEL, it just says that the code is still pending. Very weird, so I plan on sending out the ECU for repair and or check to make sure that it’s ok.
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Thread Starter
Intermediate
Joined: Mar 2022
Posts: 453
Likes: 173
From: CA
SIA since they do seem very reputable. If the ECU is ok, then they will send the ECU back to you and just charge a fee for inspecting it. That’s my plan at least for now.
Pit Crew
Joined: Nov 2019
Posts: 120
Likes: 63
From: texas
I called the dealer and the ECU that’s installed in my car is the correct one, but it’s not the one that was repaired.
Took the car for a 30 mile drive on the freeway and it shifted perfectly fine with no CEL, it just says that the code is still pending. Very weird, so I plan on sending out the ECU for repair and or check to make sure that it’s ok.
Took the car for a 30 mile drive on the freeway and it shifted perfectly fine with no CEL, it just says that the code is still pending. Very weird, so I plan on sending out the ECU for repair and or check to make sure that it’s ok.
Keep us updated.
Thread Starter
Intermediate
Joined: Mar 2022
Posts: 453
Likes: 173
From: CA
Racer
Joined: Jan 2004
Posts: 1,950
Likes: 476
From: North Carolina
A repair shop will find cold solder joints in ageing equipment even if it hasn't caused any problems yet. For every piece of equipment there are known areas to look at and solder to prevent future problems. Also hopefully common known suspected capacitors will be replaced at same time even if they are good. Repair shops generally have kits with all the parts in a bag to replace per equipment and they replace them all. This is a cheap repair that you want to future proof.
Thread Starter
Intermediate
Joined: Mar 2022
Posts: 453
Likes: 173
From: CA
A repair shop will find cold solder joints in ageing equipment even if it hasn't caused any problems yet. For every piece of equipment there are known areas to look at and solder to prevent future problems. Also hopefully common known suspected capacitors will be replaced at same time even if they are good. Repair shops generally have kits with all the parts in a bag to replace per equipment and they replace them all. This is a cheap repair that you want to future proof.
Do you think something else related to the ECU, such as other ECU engine component commands inside the circuit board can trigger a transmission code?
What is the other connectors that are off to the side below the ECU?. Is this another module?
Instructor
Joined: Feb 2009
Posts: 1,199
Likes: 215
From: Ontario, Canada
I spoke with the technician that worked on my transmission today and he thinks that the valve body needs to be replaced as everything else checked out ok including all the solenoids and ECU. So now I plan on buying a nicely reconditioned valve body.
Thats crazy, $4,600? Did you consider going to a transmission shop vs the dealer? I would never go to the dealer for anything unless I absolutely had to or it was a last resort.
Try the ECU fix first, and possibly ask about the valve body having issues if the transmission is shifting fine and it’s not having any other problems instead of going for a full on rebuild.
Thats crazy, $4,600? Did you consider going to a transmission shop vs the dealer? I would never go to the dealer for anything unless I absolutely had to or it was a last resort.
Try the ECU fix first, and possibly ask about the valve body having issues if the transmission is shifting fine and it’s not having any other problems instead of going for a full on rebuild.
Step 4 is inspect/replace the torque converter clutch, and if that doesn't solve it, step 5 is to replace the transmission, although I would say send your ECU to be repaired (not exchanged with a different one) before replacing the transmission.