My RED Prius 2008 has the codes I took some photos any ideas? The codes are from my Mechanic. P0A80- Replace HV Battery Pack P0AC1 - Hybrid Battery Pack Current Sensor 'A' Circuit Low P3021- Battery Block 11 Becomes Weak P3000/389 - HV Battery Malfunction P0430 - Catalyst System Efficiency Below Threshold Bank 2 P0420 - Catalyst System Efficiency Below Threshold Bank 1 P0136 - Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2) P2232 - O2 Sensor Signal Circuit Shorted To Heater Circuit Bank 1 Sensor 2 C1310- Malfunction In HV System C1259- HV Control System Regenerative Malfunction C2318- Low Voltage Error Power Supply Malfunction C1242- IG2 Power Source Circuit B1424- Solar Sensor Circuit Driver Side B2796 - No Communication In Immobilizer System
Welcome to PriusChat!! Looking at the posted picture, the 12v battery could be low(?). Best to use a voltmeter and measure it under the hood at the jump points. DTC P0A80 and P3021 point towards a failed block in the HV battery assembly. You can do a search for any of your posted codes (DTCs). You might also look into buying a 'mini-vci' cable to use with techstream, that will give you the same level of diagnostic software that the dealer offers. Your mechanics OBD2 scanner may not be fully hybrid compatible, as there is only one catalytic (P0420) for this vehicle. Curious if someone may have stolen your catalytic converter from underneath the vehicle?
Here’s the voltage when the 12v is off And here’s with the it on the voltage I don’t think anyone has stolen my catalystic converter since my mechanic pulled the codes but I could be incorrect about this I mean the car was bought November Of 2008. Wouldn’t there be a code that’s it’s missing or not? Is the o2 sensor on the catalystic converter ?
It caused new codes or revealed codes that were there all along that you were not aware of? If you think it caused new codes, you may want to check the voltage on your 12V battery. In the process or running your diagnosis, you may have drained it.
Both of those values look quite low, check the date code on top of the 12v battery, and replace it if needed. You should see a resting voltage well over 12v when OFF. If you have a 12v "smart" charger rated at 3.5 amps, try recharging it before a costly replacement.
omg, the 12v battery is at 9.3 volts......................it's either been sitting idle for a few weeks and the battery has drained or the 12v battery has failed. That should be number one on the list to correct. Charge it or replace it. Then see what codes come back. If the car has been sitting unused for weeks, then the P0A80 and P3021 are likely to come back. It's pretty common for an original 2008 HV battery to have some self discharge problems with one or more of the 28 modules in the HV battery. You may get lucky though. Get the 12v battery back in good condition (or replace if needed), then try to force charge the HV battery. The problem may clear up if it's just a weak module that self discharged but is not yet in failure mode.
No my cars fine. As soon as you move the scangauge to some hv sensors like 20 codes pop up. I contacted then and they sent a new cable that should work better and they know about the issue. 9.3v is pretty low. If his car is on but not carging them the headlights and screen will drop the voltage well before 12v but 9v is pretty far. Any chace you have a scangauge? I added some hybrid sensors and it caused like a million codes. Might of Scanguage is a aftermarket tool that plugs into the OB2 port. Sounds like you didnt use one
You can always jsut clean the codes and see how soon they return and if all the same codes return. Might help narrow things down. I love my scangauge since I can clear or read codes at anytime while driving but you can buy another scanner to read them yourself. Just buy the adaptor and techstream off amazon so you can do it all yourself.
I got the 12v Replaced last night here here is what it’s like now! Codes still remain any ideas? C1242 And C2318 are gone.
the hybrid isn’t showing any Arrows still. And the battery is full green charged! i let my mechanic replace my O2 Sensor And My Catalytic converter yesterday. so the Thoses codes are gone So I have P0AC1 P0A80 C1310 C1259 P3021 P3000 B1424 B2796
Any suggestions where I can my hybrid battery and Regenerative breaking fix what’s B 2796 for understand b1424 are on 85% of Prius? If I’m wrong about b1424 let me know! I’m in lewes de
My mechanic doesn’t fix hybrid issues on prius. Also the12v is 12.77 when it’s off. Forgot to take a picture when my mechanic was doing the voltage on the 12V, ok! Car is sitting for 3 months bc of COVID 19 March 24th- June 23th! Also my friend has a 2009 Camry That Has B1421 B1422 B1424 P3000 P2511 P0AFA P0A1F P0A1D P0A0F P0AC3 C1310 C1259 P0A80 P0A7F P3021 B1820 C2318 C1242 C1241 With 222K Miles He’s In Lincoln de!
