If you get these warning lights: CE, VSC, and VSC Trac ... (1 Viewer)

[cwmoser]

Get a OBDB2 reader and its likely the code: P0051 - malfunctioning O2 Sensor Bank2, Sensor 1.

I got this issue and the fix was to replace the O2 Sensor on the passenger side.
With my 2004 LC, I needed to purchase Denso 2344138 O2 Sensor = Napa $85,00
I drove our 2004 Land Cruiser up on Ramps and replaced the sensor from underneath.
You'll need a 12mm socket to remove 4 bolts to drop the plastic undercover, then a special O2 socket to remove the Sensor.
Harbor Freight has this tool.

Kinda weird that the VSC and VSC Trac lights light up when its an Engine sensor, I would have just thought just the CE light.

Anyway, when done clear the fault code and all 3 lights will turn off.
I use the Torque Pro app and the ELM-327 OBD2 interface as my diagnostic tool.

 

[Import Driver]

Glad it worked for you.

I had a CEL code P0430 efficiency of catalyst system is lower than limit. Changed the bank 2 downstream O2 sensor, cleared the codes, CEL hasn't returned yet (waiting) but the vsc and vgrs wouldn't clear. Bummer!

 

[2001LC]

With almost any CEL (Check Engine Light) from engine DTC's (Diagnostic Trouble Code). ABS shuts down, so we get VSC & TRAC lights.

We always want to read codes, record them and clear them. Then, see what comes back. Once repair completed, clear codes again!