1st time owner. Lots of codes. Please help!

Hi and welcome to PriusChat.

I suspect the code reader your mechanic is using is too generic and can see only about 3 of your car's 11-14 ECUs.

For example, the P3000 is a code which is set meaning I heard from the HV battery ECU that it has a problem. Therefore there should be codes in that ECU that would help in the diagnosis.

I know you put a new 12 V battery in recently, but please check it and ensure it is fully charged. Prii are difficult to diagnose if the 12 V supply is not stable and reliable.

Suggest to your mechanic to update his scanner to include Prius PIDs or data files, if that is a possibility for him.

Keep us updated on how you get on.

 

All the trouble might be having, in my view, could be traced to the hybrid battery probably. As long as the dealership were a jackshit, then they could have also extend red that shit, to the HV pack.

P3000 doesn't tell you exactly what the problem is. There should be a subcode to the code he posted. Without that, we'd be beating around the bush.



PS: A failing or failed pack, may ha e triggered those codes.



Dxta

 

You might get lucky and find an Advanced Auto or Pep boys with a capable scanner.

 

Check the inverter coolant pump.

Put car in ready and open hood and take black cap off the inverter reservoir the thin white tank next to silver box . Inside is red fluid. Get flashlight and in ready look in that reservoir and the red fluid should look like it’s boiling from pump movement. If just sitting there the inverter pump has failed.

Pray it’s that if that’s ok I’m afraid based on what we see here it’s most likely a hybrid battery ground fault. In its beginning stages of failure you can cleAr it’s codes and continue driving. The ground fault is caused by leaking electrolyte coming from failed battery module conducting voltage to ground. Very intermittent than always on. You can confirm this by the picture of a turtle looking car in the upper left corner of the mfd when the codes launch. If you see that turtle along with the red master caution on the dash it’s the hybrid battery.

Go to Toyota.com/owners forum and join. You will need the cars vin to register so have your insurance card ready. The cars vin is on that card. On that forum You will see every time the car has seen an authorized Toyota dealer for service. You may see why the car was traded in or what exactly was repaired over the years.

Good luck.

 

Lady,

Dxta is from Lagos. We have folks from all over the world here.

What everyone else has said.

Give Matt a shout, he's an excellent INDEPENDENT resource for someone like you, he's over in weatherford but works the DFW area. Texas Prius Battery Replacement

GOOD LUCK!

 

There are several pumps. The one you hear at startup and shutdown is probably the one pumping coolant in and out of the thermos for storage (and that's for the engine cooling, anyway). The pump Ed's referring to is a different one that cools the electronics. It should run pretty much all the time the car is on, but it's pretty quiet, so you can't count on hearing it. Hence looking for turbulence in the coolant.

You might want to look around the forums here for information on getting Techstream set up for reading your own codes and data. It sounds like you're on a budget, and having to depend on others for checking and rechecking adds up, both in money and time.

Also, it never hurts to spend some quality time with the New Car Features manual, just so you get basically familiar with what all's in your car and why.

-Chap

p.s. Don't try to guess problems by what lights are on. There are hundreds of problem possibilities monitored by the computers, and about half a dozen dash lights. Mention that to a mathematician and she'll probably mumble something about the "pigeonhole principle"....

-Chap

 

Mention that to a mathematician and she'll probably mumble

Chap, you moved up in my estimation -- of course, you were never far down anyway.
kris

 

Make life easy. Contact Matt at Texas Prius Battery Replacement
legitimate business, knowledgeable, and a respected contributor here on PriusChat. Nearby DFW area.

Next vehicle you purchase, besides the CarFax, pay to have the vehicle inspected by someone who knows far more than you, about the vehicle you wnat to purchase.

 

@LadyLock, don't mind exstudent, his heart's in the right place and I'm sure he means well. Although he comes across abrasive, his motivation is to speak the truth, so that's alright, then. Just needs to polish up his presentation so he doesn't come across condescending and/or insulting.

 

Ignore all codes except the P3000.

Last Modified: 2-3-2017 6.6 C Doc ID: RM000001PR8005X
Model Year Start: 2008 Model: Prius Prod Date Range: [08/2007 - ]
Title: P112 HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P3000-123,P3000-125,P3000-603; HV Battery Malfunction; 2008 MY Prius [08/2007 - ]
DTC

P3000-123

HV Battery Malfunction

DTC

P3000-125

HV Battery Malfunction

DTC

P3000-603

HV Battery Malfunction

DESCRIPTION
The HV control ECU gives warning to the driver and performs the fail-safe control, according to the abnormal signal received from the battery ECU.

DTC NO.

INF CODE

DTC DETECTION CONDITION

TROUBLE AREA

P3000

123

Abnormal signal input from battery ECU (HV battery system malfunction)

• HV battery system
• Battery ECU

P3000

125

Abnormal signal input from battery ECU (High voltage fuse blown out)

• HV battery system
• Battery ECU

P3000

603

Abnormal signal input from battery ECU (HV battery cooling system malfunction)

• HV battery system
• Battery ECU

INSPECTION PROCEDURE
HINT:

After repairing the malfunction, restart the system (to turn the READY light ON) and recheck the DTCs.

PROCEDURE
1.

READ OUTPUT DTC (HV BATTERY)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch ON (IG).

(c) Enter the following menus: Powertrain / HV Battery / Trouble Codes.

(d) Check if DTCs are output.

HV battery system DTCs are output.

YES
GO TO RELEVANT DTC CHART (HV BATTERY)

NO

2.

PERFORM ACTIVE TEST USING TECHSTREAM (COOLING FAN SPD)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch ON (IG).

(c) Enter the following menus: Powertrain / HV Battery / Active Test / Cooling Fan Spd.

(d) Perform the Active Test "Cooling Fan Spd" and set it to "mode 6" to operate the cooling fan for 15 seconds.

(e) Check for HV battery system DTCs according to the prompts on the tester screen.

HINT:

After performing the Active Test, check for DTCs without turning the power switch off.

HV battery system DTCs are output.

YES
GO TO RELEVANT DTC CHART (HV BATTERY)

NO

3.

CHECK HARNESS AND CONNECTOR (BATTERY ECU, BATTERY BLOWER MOTOR CONTROLLER, BATTERY BLOWER, NO. 1 BATTERY BLOWER RELAY)

(a) Check the connection condition of the B11 battery ECU connector, B10 battery blower motor controller connector, B9 battery blower connector and B14 No. 1 battery blower relay connector.

NOTICE:

Be sure to also check the BM1 connector that connects the wire harnesses.

OK:

- The connector is connected securely.

- The terminals are not deformed and are connected securely.

- No water or foreign matter in the connector.

RESULT

PROCEED TO

OK

A

NG (The connector is not connected securely.)

B

NG (The terminals are not making secure contact or are deformed, or water or foreign matter exists in the connector.)

C

B
CONNECT SECURELY

C
REPAIR OR REPLACE HARNESS OR CONNECTOR

A
REPLACE BATTERY ECU ASSEMBLY

 

Plus check out TSB-0166-09,....you will have to have a few more codes you may not have access to but it may apply as well. Make sure you also try and get the detail or info code that codes with the DTC. If you look at Freeze Frame data on an actual decent scan tool it should give you a P3000 and three more numbers to kind of pinpoint testing.

Best case you just have a shit auxillary battery.

Also see if you can check the HV Blower motor that cools the battery. It can be clogged and causing overheating and dummy codes to populate.

 

The P3000 is still, in a way, "hearsay" though. It is a code from the HV ECU repeating that the Battery ECU told it something interesting.

To get the real low-down from the source, talk to the battery ECU.

-Chap

 

IMHO the proper phrase to avoid extremists is "Mention that to a mathematician and they'll probably mumble..."
Both gender extreme activists are equally wrong in my opinion. They want superiority not equality.

 

Car fax does not reveal as much info as the Toyota forum. And your referencing the wrong pump.
P3000 is sometimes corroded connections to and from the battery ecu. But no matter what you have hybrid battery issues which means it’s got to come out for inspection. Probably corroded and very tired,
Like the bulk of posters of late start thinking about what your going to do with it. Replace it or whack a mole module replacement.

 

Sounds like an off-topic that could be discussed in FHOP.

While your first statement maybe true, it could be many other things too. Your second statement is actually all you can certainly say from the P3000 code, because as Chap said P3000 is a code from the HV ECU repeating that the Battery ECU told it something interesting. To find out what that interesting tidbit was, just ask the Battery ECU what's up?

 

So now you have a much bigger problem, more information and potentially knowledge, than anyone who is likely to work on your car

We can only hope you don't get the dreaded "deer in the headlights" look when you question the repair facility about their test results and potential repair paths.