Prius (2004-09) :: 2006 - P1121 Error Code Pulled Over
Jul 19, 2013
I have a 2006 prius whose check engine light just came on 1 hour ago. I had it diagnosed and it is giving me the p1121 code, or the coolant flow control valve. I checked the coolant level and it was very low. I added fluid, but the CEL is still on. I have to make an 11 hour trip tomorrow.
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I took my 2006 in for its 50,000 mile oil change today, and I was told I had the following codes related to the transmission and the park/neutral switch:
P0852 (System: Hybrid Control; shown as "hist," presumably historical)
C2315 (System: Transmission Control; shown as "curr," presumably current)
My car is running fine, and none of the dashboard lights have indicated any problem.
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So I bought a used 2005 Prius back in August it had 88,000 miles on it and was out of warranty. But I had a full inspection on it and the car was in great shape. Well, after a few months of driving, I got the P0420 error. I took it into my mechanic who cleared the code and told me to call him if it came back on. It came back on, then I cleared it myself, and it came back on again. So it was confirmed that I had a bad catalytic converter.
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So I received the P1121 and took it to the dealer. They told me I also had a P3000. I called another dealer and they said the P3000 could be caused by the P1121 not giving it enough coolant. So I brought it back to the house, bought the valve listed in the forums, and I spent all day changing that + the coolant. I drained the coolant and between the reservoir and the radiator cap itself I refilled about 4 QT, and I saw that my inverter coolant was just below the low line, so I filled it up to the full line. Afterwards, I tried to get the coolant to flow, and it seems like I won't flow. The check engine light immediately came back on and the car said, "Problem." So I immediately shut it off and let it set for a few days. How do I get it so that the coolant starts flowing again. I haven't seen any of the levels move whatsoever on the radiator.
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Two weeks ago my CEL came on and the code was P1121. I checked the coolant level and everything seemed fine, so I figured I'd take it in soon.
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2005 Prius, 105K miles when the check engine light came on.
Scanner report: P1121 accelerator pedal position sensor range/performance problem.
Fix: Coolant flow control valve. (Even though it was still working)
Part number: 16670-21010
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What is the to cause to check engine light go off. I will take my car to auto zone tomorrow morning to hopefully get a code and see if I can fix it myself... if not, then I am going to have to go to the dealership.
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About once a week my check engine light comes on. The code is P1121, which is about coolant valve sticking. In about one or one and a half days it times out and i dont get the warning light for another week or so. Do you think I should have something done right away or wait and see what happens?
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On my 05 Prius (65K miles) I recently had my local Toyota dealer replace both the inverter water pump (for free per recall) and main engine water pump (~$500 based on their recommendation because of some coolant leakage). 1 week later, I got the P1121 code coming off and on intermittently.
My dealer says that the work they did is not related to P1121.
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i have a 2005 Toyota Prius that the air conditioner wont work in. it has Freon in it the compressor wont kick so I did some research and my cooling fans aren't kicking on so I did a by pass test and the cooling fans motor is good they just wont kick on. I just replaced my 2 cooling fan relays and they still wont kick on. the check engine light was on in the car when I got it. it throws the code P1121 coolant valve control. I got the part just got to get it put on. Could this part stop my cooling fans from kicking on or my ac compressor from coming on.
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My cousin's B5 wagon automatic 1.8T ('00) was shaking and vibrating intermittently. I took it down to Autozone and borrowed an OBD2 scanner. This is what it said (only one code, and the CL was off, although it comes on intermittently):
P0741 - Torque Converter Performance or Stuck Off
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I threw a code and I have it but I am unsure what to do.
The code is P0353
"Ignition Coil C Primary/Secondary Circuit"
I saw that this might be the coil, the wiring or the ground? I had my coils go on my 1.8t Jetta and that was pretty distinct as the car ran like crap.
The car seems to run fine, I have had the code for 2 days. It went off this morning and it came on again this afternoon.
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I was driving home the other day and my CEL came on... I checked the gas cap and waited a few days to see if it cleared. When it didn't clear I had the codes read and it came back with 3 instances of P0505.
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Installed Rebuilt Hybrid Battery AND New 12v Yesterday. Worked great until just now. Got the cool Red Triangle and VSC... hooked up to that Cool code machine and got the P0AAC (Hybrid Battery Pack Air Temperature Sensor "A" Circuit).
What is this exactly and what should I do? If it's a simple fix, I'm sure I can do it with my dad ... after all, I did take and reinstall the battery myself. Also, is it going to hurt my car if I drive on it with this issue?
Car is 06 and has 211K miles.
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My daughters 2000 explorer has a PO172 code, tune it up,Replaced filters plugs & wires and rear O2 sensors that were damaged. Has 65 psi on fuel rail. Can not find any vacuum leaks. Not sure maybe injectors are dirty.
Also I replaced MAF, now it idles, But it's a rough Idle,Gets worse in gear. She say's on cold start up she can smell a whiff of gas ..
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Code says P1121 Accelerator Pedal Position Sensor Range/Performance Problem. I heard that was wrong and its really coolant control valve? The battery drains fast and the can runs like crap. Would this code be doing that to the car?
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The check engine light on my '05 Prius has gone on and off a couple of times and is giving me a P1121 code, which I found out means "Coolant Flow Control Valve Position Sensor Stuck". Does this have anything to do with the hybrid electric coolant pump that was replaced under recall a while back?
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My check engine light was throwing the code P1121 for the coolant flow valve. Toyota replaced it under a warranty enhancement (I have 134k on it), and since then my mpgs have gone from 46 to 50.
My AC is working much better now, too. My theory is that the valve can be in a semi-failure mode for a long time before throwing a code. Now that My coolant is flowing the way that it should, heat is being dissipated more efficiently.
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It's been a long week for me and my 2007 Prius. Brought it to the dealer after receiving my first ever CEL. I have 222,000 miles on the vehicle. The a/c was also blowing warm when the CEL came on. They checked that and told me that the compressor was "breaking up." Then they call me back to tell me that my 12V battery died. They asked me if I had problems with starting the vehicle. I said never. Never had any issues with the car in 222,000 miles.
Well, told them to replace the battery (no choice) and the car is 5.5 years old in Florida heat so it was ready to die. Very suspicious that it died while they had the vehicle, but what can I say. Told them to not repair the coolant flow valve or the a/c until I could investigate further on my own. CEL is now off. The a/c is blowing cool again.
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I took my car in for an oil change and the mechanic said I needed to have my water valve replaced. Based on everything I've read, this is too much. I said I'd have it done later as I had no real symptoms. Well, today I'm on the road and I get the check engine light to come on, pull into an AutoZone and the reading is a P1121 code. No other codes.
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My car has been fine with no changes besides tires last week, its a 2006 Prius and yesterday I got lights on my dash, went to auto zone for a read out and got an HV error code. I was wondering what is the most affordable route for my car to get repaired. I don't notice any mpg differences and everything still charges and recharges as if the errors don't exist.
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