Check Engine, VSC with P0606 error code - Toyota RAV4 Forums
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#1 (permalink) Old 01-12-2013, 07:27 PM
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Check Engine, VSC with P0606 error code

Hello,
My 07 Rav4 V6 recently started having the check engine light with VSC and traction control light come on. It has 110,000 miles. After resetting the ECU by disconnecting the battery, it comes back on after an hour to a couple of days.

I bought a obd2 reader, and see that the error code P0606 is in the history. This indicates a problem with the ECU / PCM, or something related to it.
In the Mode $06 monitors the following show errors (possible errors?)
TID (test ID) $D0, reported value 9.0008
$FF, reported value 54525
$FF again, reported value 54781
$FF again, reported value 55293
Does anyone have an idea what this could mean? There is a TSB regarding the ECU, so maybe that could fix it.
I really do not want to take it to the dealer.
Thanks!
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#2 (permalink) Old 01-13-2013, 12:49 PM
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I really do not want to take it to the dealer.
Thanks!
I don't blame you. The specific code indicates a processor fault in the ECU and the following codes are the stored values at the time of the fault occurrence. You most likely cannot interpret them yourself. It is very likely you need a new ECU. If it were me I would ignore the lights knowing the cost of turning them off.

I would suggest taking it to a non-dealer shop that works on toyotas that can tell you more. Good luck.

2012 V6 4WD Ltd.

if you're not part of the solution, you're part of the precipitate.
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#3 (permalink) Old 01-13-2013, 03:18 PM
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I had an idea that might help. The error codes that follow may have nothing to do with external conditions and be a bad memory location in the ECU or something like that. If you reset the system several times and see if the codes are the same when the problem recurs it might be related to some external condition. If they change it is probably the ECU CPU having a small stroke once in awhile. There are people on-line who repair them but I know nothing about that.

I followed my own post in case you read the first one and never looked back.

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if you're not part of the solution, you're part of the precipitate.
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#4 (permalink) Old 01-13-2013, 03:45 PM
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Thank you, I'll reset it a couple of times and see how I can avoid the dealer to fix this. Thanks!
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#5 (permalink) Old 01-13-2013, 07:21 PM
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Your ECU might be under warranty still as part of the emission control system. ecu warranty - Camry Forums - Toyota Camry Enthusiast Forum

2012 V6 4WD Ltd.

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#6 (permalink) Old 01-19-2013, 11:57 AM
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Hello,
The $d0 code is now 8.832, in inH20
the three $ff codes are the same.
I'll have to take it in somewhere, and hold on to my wallet.

Thanks!
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#7 (permalink) Old 03-10-2013, 03:28 PM
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After having a dealer take a look at the system, they reported that from their scan they show that the indicated problem is high resistance from the o2 sensor. Bank 1 Sensor 2. My scan of the vehicle does not show issues with the sensors, but perhaps they get more info than my scanner does.

Now I bought the replacement sensor, but the cable leads to the floor pan and passes through. Does anyone have an idea how to get to the connector end to replace this sensor?

Not sure if I have to take apart the center console, or what. I found the same question asked elsewhere on this forum, but no answer.
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#8 (permalink) Old 03-12-2013, 09:44 PM
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I just replaced that sensor. It actually is very easy. Remove the plastic trim piece that is right next to the accelerator pedal. Pull out from the rearward end and it comes off easily. Then, right under the end of the console corner is the connector. I had to pull the side of the console out just a little to see better. The Denso 234-4501 sensor was an exact replacement down to the rubber boot for sealing the hole through the floor. Unfortunately, it didn't solve my problem. I have codes P0138 and P2159. I haven't figured out what to do yet. Good luck.
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#9 (permalink) Old 03-13-2013, 12:11 AM
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Quote:
Originally Posted by chaz View Post
After having a dealer take a look at the system, they reported that from their scan they show that the indicated problem is high resistance from the o2 sensor. Bank 1 Sensor 2. My scan of the vehicle does not show issues with the sensors, but perhaps they get more info than my scanner does.

Now I bought the replacement sensor, but the cable leads to the floor pan and passes through. Does anyone have an idea how to get to the connector end to replace this sensor?

Not sure if I have to take apart the center console, or what. I found the same question asked elsewhere on this forum, but no answer.
check
Oxygen Sensor (Rear) changed for 2.4L I4
Edit: I found you have V6 engine. I don't know how to delete this reply..
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#10 (permalink) Old 03-15-2013, 10:35 PM
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Thank you both for the help. I will try this fix tomorrow. I also fear that it will not fix the problem, but maybe I'll be lucky. It is odd that all I get is the computer code p0606, but none of the O2 sensor codes, but the print out from the dealer does show that the resistance of the sensor spiked, triggering the dashboard Christmas lights.
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