Just got a "Check hybrid system" message

No recent work on it? Especially electrical?

I got that error several times after doing some wiring behind the dash and probing around the fuse box checking which fuses were hot on Standby and in Ready Mode.

Scared the cr@p out of me. Especially because it is the Mrs' car.

Took several attempts to get the car into Ready mode by pressing the Start button several times to clear the fault. Whew.

SCH-I535

 

Weird, the date on your post is 1970. Yet you have a 2010... Lol. Better check out the Flux capacitors too.

SCH-I535

 

The SGII cannot read the Prius specific DTC's from the different ECU's without special XGauge programming. Search on here for SGII and find where Vincent sent me the coding for this. This will give you the DTC but not the sub codes that narrow down the possibilities.

 

i interested in that.....any more clues....i searched sg11..vincent but nothing came up

 

Please follow up with where you take it. Hopefully I won't need a good hybrid mechanic for a long time, but I'm curious where one would be. It doesn't seem like the DC area has a good indy shop like they have out west. With all the hybrids here, you think there would be.

With that said, dealers are hit or miss too. I've only had experience with Leesburg Toyota for a non hybrid repair for a family member. Not impressed with that service department.

 

SGII Rev. 4.02 Upgrade | PriusChat

The above is the thread. Vincent emailed me the DTC coding. I am out of town this week and need access to my home PC. You may try adding a post to this thread and ask Vincent if he can email you the DTC coding. He is in Singapore and usually responds during late evenings our time.

 

I bet SG produced the problem. We had that reported here many times how OBD2 devices interfere with CAN communication. I had that myself.

 

sooo what was the exact solution for walter Lee's problem.

 

I would like to know that as well. I have a 2010 Prius and my Check hybrid system message came on and it will not drive.

 

First thing: Turn the engine off and on three times. That sometimes work. Second thing: Pull the 12V battery ground and then reattach. That sometimes work.

If those don't work:
Step 1: Curse
Step 2: Attach an ODB-II tool to the ODB port under the steering wheel and read the diagnostic fault codes. Post them here.

 

One evening I was driving my Toyota Prius, 2013 (i-e Generation 3 – 1.8 Prius) and I saw a check light on by dash board display. While I was taking it to a workshop the display gave another sign “Check Hybrid System Stop the vehicle in a safe place”. The yellow triangle was also displaying at that time and off and on I could see the heatup sign as well. While I was parking in a safe place the vehicle stopped.

After a while I started it and the same signs came again yet I was close to home and I was able to park it there. Since it was winters I noted that my heating system which I fixed at 28 C was not working. I raised the temperature to highest level but the heater was absolutely not working.

The other day I started it and I could see the check light only but again while driving it to work shop I started receiving the same sign again and the vehicle stopped but since the workshop was not far away I was able to reach to workshop by stopping for a while and then restarting the vehicle. When the scanner was attached at the workshop it showed “Code P261b - Engine Coolant Pump “B” Control Malfunction”

The workshop admin advised that the main coolant pump needs to be checked as it has electric motor which usually gets overheated and finally gets dysfunctional and the coolant circulation towards the engine stops ultimately causing the vehicle to be over heated and the indication comes up with these signs. It must be noted that prius has two coolant pumps – one for cooling down the hybrid system while the other is for cooling the engine. The Engine Coolant Pump “B” as is clear from its name is for cooling the engine. It is placed on opposite side of inverter while the inverter coolant pump is placed almost below the inverter. The workshop men opened the Engine Coolant Pump and when checked it was jammed which was not moving freely. On mere rotating the motor by hand one can tell it is jammed. The motor in the new Engine Coolant Pump is very free in movement. We replaced the same and the vehicle was all set. If its fixed the very obvious indication is that in a while the heater inside the prius will start working – obviously in a few minutes once the engine fully functions. For easy reference I am posting the Engine Coolant Pump replacement link.

 

welcome and thank you for the helpful info! all the best.

 

Check the bus bars their corroded. Be careful and use insulated rubber gloves. To clear the codes on a 2013 Prius C . Turn key on, turn headlights on and off 3 times turn key off. Repeat until all codes are cleared off display.

 

It's too bad the Prius Dash can't display coolant temp, both engine and inverter would be nice.