Engine light and VSC
Thread Starter
Driver School Candidate
Joined: Feb 2018
Posts: 11
Likes: 0
From: CA
Engine light and VSC
Hi, recently I've seen that on my 2007 Lexus RX350, there's the engine check light as well as the VSC light that comes up on the dashboard. What do I do or need to get changed in order to fix that problem?
Pole Position
Joined: May 2017
Posts: 215
Likes: 32
From: Ohio
Have you also checked for any leaks in your exhaust manifold or engine intake manifold? A leak in the engine intake or exhaust manifold can allow extra air which causes faulty readings with the O2 or MAF sensors. You'll also notice a drop in MPG
Driver School Candidate
Joined: Jan 2018
Posts: 33
Likes: 2
From: Texas
It is most probably a leak in one of your intake manifold vacuum lines. Check and see if there is one which is loose, cracked, or disconnected. This generally will cause engine and VSCmlights to come on.
Racer
Joined: Mar 2011
Posts: 1,817
Likes: 229
From: wa
VSC is Vehicle Stability Control. Hence, you have some issues related to ABS/VSC module. Sometimes it's as easy fix as cleaning ABS sensor heads. Better off, obtain ABS CAN BUS capable scanner and read error codes associated with VSC MIL. That will be good starting point. Go to HFT, buy one, read codes, return it. Or keep it. They come handy.
Driver
Joined: Mar 2016
Posts: 91
Likes: 14
From: TX
The VSC light normally comes on with the check engine light. It doesn't mean there's necessarily an issue with the VSC system. For example, a cylinder misfire code will trigger both the check engine light and VSC light.
Pole Position
Joined: May 2017
Posts: 215
Likes: 32
From: Ohio
When the VSC and CEL BOTH come on, it's a general fault indicating a problem with the engine, power train, or with the sensors (commonly the O2 sensors).
I had this problem as well on a late 90s Toyota and that turned out to have been a bad oxygen sensor.
If you have an OBD II scanner, you can plug it into the port on the driver side and take a reading to determine what the issue is.
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