What is the meaning of vgrs - 2003 Lexus LX 470

Where is nin Sensor located in 1az engine sienta

Variable Gear Ratio Steering.

(copied from 'yep it broke' in another question)
A means oil and filter change
1 means tire rotation and
2 means replace engine air filter and cabin air filter
6 means replace VTM4 rear-differential fluid

When this light is on it indicates a problem has occurred in the system, you must get it diagnosed and repaired and the light will then reset itself

Variable Gear Ratio Steering (Makes it easier to turn when stationary or moving slow)

Not knowing your model or year, I can't investigate any further with what you have provided.

Looking in other forums, the most useful comment that I can see says that a guy had this same problem after installing a Sat TV system, somehow that process fried the VGRS computer He called Lexus of Honolulu, who informed him that the car was both safe and driveable in the current state. A local dealer fixed the problem for him. The only effect of the light was that the steering did not become more sensitive for parking maneuvers. the job discussed was fixed under warranty, It is not a cheap fix.

The Lexus LS has a recall on it for VGRS issues. You can read more at:
http://lexusenthusiast.com/2010/05/19/lexus-ls-to-be-recalled-for-vgrs-issue/

Not to sure what you mean but if you mean what does 72K mean, it means 72,000 miles. Also what exactly did "they" say or tell you?

what is the transmission? is it a 4L60-e or 4L80-e or 4L65-e the 4 means 4speed The L means longated the 60 means 6000 .lbs GVW and the 80 means 8000 .lbs GVW 5 mean there is a 5 gear planetary in the transmission and e =Electronic controlled total fluid is 11 quarts of Dex-tron.

CLEAR CODES, DRIVE VEHICLE AND LIGHT WILL GO OUT .

CODE 12 MEANS BATTERY DISCONNECT.WHAT IT MEAN THE PCM WAS DISCONNECTED WITHIN LAST 50 KEY ON CYCLE. CODE 43 MEANS -CYLINDER MISFIRE.OR IGNITION COIL PRIMARY CIRCUIT.

code 71 means #1 cylinder missfire 72 Means #2 cylinder missfire 73 means #3 cylinder missfire and 74 means #4 cylinder Missfire