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2003 Gs300 Vsc/ Engine Light


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#1 Furnrep101

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Posted 16 September 2006 - 06:40 AM

I thought I would see if anyone can help with this issue.. I have been reading diferent threads and you've touched on some of the issues I am having but not all. Here's the issue:
Both the Engine light and the VSC lights came on at the same time. Had it tested at an auto parts store and got a reading as follows:

P057
Low heat
Bank2, Sensor2

The guy at the parts store said that on the newer cars they use a pre-heater on the oxygen sensors which may be failing. We could not find any match in his code books for the P057.

Any information would be greatly appreciated!!

Thanks.

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#2 Furnrep101

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Posted 16 September 2006 - 04:31 PM

No one know's about this issue? This seems to be a very knowlegable crowd.... I was hopeing for some advise.... :(  :cries:

#3 GuyTelefunken

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Posted 17 September 2006 - 01:04 AM

There is a code P0057, Oxygen Sensor Heater Control Circuit Low, Bank 2, Sensor 2.

You need an oxygen sensor. B2S2 is the one after the cat with the wire running up through the floor on the passenger's side. The connector is behind the carpet in the footwell.

P.S. Complaining that nobody answered your post quickly enough won't usually motivate the crowd to do so.

#4 Furnrep101

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Posted 17 September 2006 - 06:38 AM

Thanks for the info... Apologies to all those I have offended with my impatience.

I am guessing then that the VSC light which has come on along with the VSC off light has nothing to do with the engine light. Are there any checks I can make for this issue?

#5 Furnrep101

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Posted 17 September 2006 - 06:49 AM

I had some other advise from an individual who is a do-it-yourselfer mechanic...

"fill it up with Chevron high octane with the cleanser, add a bottle of injector cleaner... When you run through the tank of gas un-hook the battery for 15 minutes and re-attach. System should reset itself and engine light should be gone." His theory was that there was carbon build up on the sensor and that this would clean it up. Says he's done it on some chevy vehicles and it works.... (I have 59K on the Lexus).

Dumb luck or really works?

#6 GuyTelefunken

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Posted 17 September 2006 - 12:48 PM

Waste of time.

I had some other advise from an individual who is a do-it-yourselfer mechanic...

"fill it up with Chevron high octane with the cleanser, add a bottle of injector cleaner... When you run through the tank of gas un-hook the battery for 15 minutes and re-attach. System should reset itself and engine light should be gone." His theory was that there was carbon build up on the sensor and that this would clean it up. Says he's done it on some chevy vehicles and it works.... (I have 59K on the Lexus).

Dumb luck or really works?


The VSC Off will illuminate whenever the VSC malfunction lamp is lit. Sometimes, the Check Engine will also illuminate the the VSC depending on the particular code. When the computer is reset after the oxygen sensor is repaired, all the lamps should go out.

#7 Furnrep101

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Posted 18 September 2006 - 05:44 PM

The VSC Off will illuminate whenever the VSC malfunction lamp is lit. Sometimes, the Check Engine will also illuminate the the VSC depending on the particular code. When the computer is reset after the oxygen sensor is repaired, all the lamps should go out.



Thanks for the info.

#8 Furnrep101

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Posted 20 September 2006 - 07:54 PM

There is a code P0057, Oxygen Sensor Heater Control Circuit Low, Bank 2, Sensor 2.

You need an oxygen sensor. B2S2 is the one after the cat with the wire running up through the floor on the passenger's side. The connector is behind the carpet in the footwell.


I've checked into pricing for this unit, and they run from $90+ to $236. The $90+ is a universal o2 sensor... Any thoughts on this or maybe a website where the parts are reasonable?

#9 GuyTelefunken

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Posted 20 September 2006 - 09:48 PM

I do not recommend universals ever. The wiring attached to the sensor is made from stainless steel. Universal connectors must be crimped to the original harness. Often this joint is the source of problems down the road. Go with OEM style which includes the correct plug.

www.oxygensensors.com The Walker or Denso brand are excellent. $89.00 for the walker includes shipping.

#10 Furnrep101

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Posted 24 September 2006 - 06:51 PM

Problem Solved!! Again, thanks for the info!! :D

#11 anthonyiez

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Posted 28 September 2006 - 10:34 PM

never use an unviversal, because most lexus/toyota vehicles don't actually have oxygen sensors. they are air fuel ration sensors. yes they look like oxygen sensors, but they operate in a different manner.

#12 new big400

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Posted 29 September 2006 - 08:22 AM

never use an unviversal, because most lexus/toyota vehicles don't actually have oxygen sensors. they are air fuel ration sensors. yes they look like oxygen sensors, but they operate in a different manner.


Nonsense.Please elaborate

#13 anthonyiez

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Posted 29 September 2006 - 08:36 AM

nonsense that air fuel ratio sensors are different or nonsense that universals don't work?

#14 anthonyiez

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Posted 29 September 2006 - 08:49 AM

provided for your reading enjoyment...

www.vcertt.org/news/10-03.pdf

#15 new big400

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Posted 29 September 2006 - 10:05 AM

I agree not to go aftermarket but the 03 GS300 has o2s not AFRS.

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