P1155 & vsc
#1
Driver School Candidate
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Hi everyone. About a week after being in a Lexus dealers shop I had both the VSC and check engine light come on at the same time on my 02 RX300 AWD. I had the code read and its P1155 only. I've read on the forum a whole bunch of information and it's fantastic, but it's also led me to be a little confused. I believe when you only get a P1155 it's probably the heater fuse for B2S1 and doesn't necessarily require the replacing of the sensor, is that right? Can someone point me to the exact link of steps I should be following to check if it is the fuse before I go spending the money on the sensor?
Also can the code and the VSC lights coming on at the same time be related? I think I read somewhere that the VSC could easily be a plug undone somewhere. I had a 5k service, timing belt and full brake service done at the Lexus dealer.
Appreciate any help.
Also can the code and the VSC lights coming on at the same time be related? I think I read somewhere that the VSC could easily be a plug undone somewhere. I had a 5k service, timing belt and full brake service done at the Lexus dealer.
Appreciate any help.
#2
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Yes, the 1155 (and I believe the 1135) is the heater fuse.
I had one of those codes last year, and ended up replacing the sensor, because I got tired of seeing the CEL (and VSC), wanted to make sure that no other "legitimate" codes would be thrown, and I was due for state inspection the following month.
I forget which of the codes (1135 or 1155) I got, but it was the sensor that is easily accessible. Ordered a replacement DENSO, soaked the old sensor with Liquid Wrench overnight, then a co-worker of mine helped me change the sensor.
So to answer your question - it isn't an immediate need to change the sensor, but I would highly recommend you do so, if for no other reason, in case another more serious CEL condition arises, which you aren't aware of. (I scanned & reset my codes daily until I replaced the sensor, just to be sure that no new codes would be thrown).
I had one of those codes last year, and ended up replacing the sensor, because I got tired of seeing the CEL (and VSC), wanted to make sure that no other "legitimate" codes would be thrown, and I was due for state inspection the following month.
I forget which of the codes (1135 or 1155) I got, but it was the sensor that is easily accessible. Ordered a replacement DENSO, soaked the old sensor with Liquid Wrench overnight, then a co-worker of mine helped me change the sensor.
So to answer your question - it isn't an immediate need to change the sensor, but I would highly recommend you do so, if for no other reason, in case another more serious CEL condition arises, which you aren't aware of. (I scanned & reset my codes daily until I replaced the sensor, just to be sure that no new codes would be thrown).
#3
Lexus Champion
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Hi everyone. About a week after being in a Lexus dealers shop I had both the VSC and check engine light come on at the same time on my 02 RX300 AWD. I had the code read and its P1155 only. I've read on the forum a whole bunch of information and it's fantastic, but it's also led me to be a little confused. I believe when you only get a P1155 it's probably the heater fuse for B2S1 and doesn't necessarily require the replacing of the sensor, is that right? Can someone point me to the exact link of steps I should be following to check if it is the fuse before I go spending the money on the sensor?
Also can the code and the VSC lights coming on at the same time be related? I think I read somewhere that the VSC could easily be a plug undone somewhere. I had a 5k service, timing belt and full brake service done at the Lexus dealer.
Appreciate any help.
Also can the code and the VSC lights coming on at the same time be related? I think I read somewhere that the VSC could easily be a plug undone somewhere. I had a 5k service, timing belt and full brake service done at the Lexus dealer.
Appreciate any help.
The VSC COULD be the hose on the back of the intake air cleaner box disconnected. This happens often in servicing and the mechanic often doesn't notice it. The VSC is kind of generic and will come on for a lot of different reasons.
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