Toyota Camry 2010 - P0A94 DC/DC Converter Performance

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#11

09-30-2018, 01:29 AM

Azan

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Re: Toyota Camry 2010 - P0A94 DC/DC Converter Performance

Hi Poa94 dc dc converter Performance code , if your car is giving trouble at high speeds or after driving over 20 minutes, and car goes into limp mode. Check your tranny Fliud if it’s black or purple you will need a new transaxle, I had the same problem in the car tried every bloody thing related to hv but in the end it was the transmission and it fixed th problem. I did lot of research but found no straight answer so now my car is fixed decided to leave feed back here so might be helpful for someone. My car was Toyota Estima Hybrid . Same engine etc and Camry Vellfire , Alphard, Etc

#12

10-22-2018, 04:27 AM

Phildo

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Re: Toyota Camry 2010 - P0A94 DC/DC Converter Performance

I’ve got a 2010 Camry hybrid with 147,000km on it.

It’s giving the P0A94 code, along with the 127 sub-code.

Has anyone managed to fix this error without replacing the transmission?

#13

10-22-2018, 04:34 AM

Azan

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Re: Toyota Camry 2010 - P0A94 DC/DC Converter Performance

Hey have tried everything drain your tranny oil if black or purple then u need a new tranny

#14

10-22-2018, 07:14 AM

S Keith

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Location: Mesa, AZ

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Re: Toyota Camry 2010 - P0A94 DC/DC Converter Performance

See attached. Order of likelihood:

HV relay assembly
Inverter with converter assembly
Service plug grip
Frame wire
Wire harness or connector
Hybrid vehicle transaxle assembly

Attached Files

P0A94-127.pdf (105.0 KB, 68 views)

#15

04-29-2020, 12:43 PM

Omar Ajarmaa

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Re: Toyota Camry 2010 - P0A94 DC/DC Converter Performance

I have the same problem with my car. Didi you solve it

#16

05-12-2020, 11:21 AM

Kayden Bathory

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Re: Toyota Camry 2010 - P0A94 DC/DC Converter Performance

I also am having the same problem, did replacing the transmission fix it? I got a 2nd hand inverter and changed the fluid in the transmission, which was black, same issues tho.

#17

05-12-2020, 01:55 PM

S Keith

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Location: Mesa, AZ

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Re: Toyota Camry 2010 - P0A94 DC/DC Converter Performance

Quote:

Originally Posted by Kayden Bathory

I also am having the same problem, did replacing the transmission fix it? I got a 2nd hand inverter and changed the fluid in the transmission, which was black, same issues tho.

As has been mentioned above, there are over a dozen detail codes associated with P0A94 (16 by my count). Each detail code has its own set of diagnostics. The possible sources of failure are as follows (in alphabetical order):

Battery smart unit
Cooling fan system
Engine assembly
Engine room R/B
Frame wire
Fuel level
Fuse (INV W/P)
HV relay assembly
Hybrid vehicle control ECU
Hybrid vehicle transaxle assembly
Inverter cooling system
Inverter with converter assembly
Service plug grip
Water pump with motor & bracket assembly
Wire harness or connector

The most common causes across all detail codes are 1) inverter and 2) transaxle.

You need to get the detail code associated with P0A94, or you're just taking shots in the dark.

#18

06-17-2020, 04:37 AM

Phildo

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Re: Toyota Camry 2010 - P0A94 DC/DC Converter Performance

Update on my car: I lived in denial for several months while the car was parked in my front yard.
I finally gave up and bought a replacement transmission.
Since it was fitted there hasn't been a problem with the car.