Guys,what does this mistake mean? When it light ,the car has no reaction on acceleration

 

Many problems can cause the "CHECK VSC" warning but your symptoms seem to indicate that the Throttle Position Sensor is defective. Check it and also the Pedal Position Sensor. I had a similar problem on a 2000 LS400 in 2009 where pressing the accelerator pedal had little effect. I posted instructions on how to test the TPS and PPS in https://www.clublexus.com/forums/ls4...rror-code.html

 

Thanks. today will looking for a mistake and give conclusion here

 

P1121.... where shpuld i looking for??

 

Didn't you read what Kansas kindly wrote at the post #2?
Check the Throttle Position Sensor and also the Pedal Position Sensor.

 

ma i need buy only sensor or throttle motor with sensor???

 

Replace the part or parts that are defective per the testing procedures here: https://www.clublexus.com/forums/6754667-post5.html

 

The throttle body is covered under the toyota settlement customer support program. I just took my car in to lexus today, I got code p1120 and they are replacing the throttle body under the support program. Visit www.toyotaelsettlement.com

D. Customer Support Program

Since the Court has finally approved the settlement, for Class Members who still possess their Subject Vehicles, Toyota is implementing a Customer Support Program that will stand by the reliability of the vehicles by providing provide prospective coverage for repairs and adjustments needed to correct defects in materials or workmanship in certain parts associated with the vehicle’s operation at no cost to the owner or lessee if any of those parts fail, break, or malfunction. The Customer Support Program will last for ten (10) years after the expiration of any existing warranty for each of the covered parts, subject to a maximum limit of 150,000 miles, except that each eligible vehicle will receive no less than three (3) years of coverage from the date of final settlement approval (regardless of when the underlying warranty expires and your vehicle’s mileage), if the Court finally approves the settlement. The covered parts are the: (i) engine control module; (ii) cruise control switch; (iii) accelerator pedal assembly; (iv) stop lamp switch; and (v) throttle body assembly. The Customer Support Program is transferable with the Subject Vehicle. Inoperable vehicles and vehicles with a salvaged, rebuilt or flood-damaged title are not eligible for the Customer Support Program.

If you are a Class Member who is eligible for the Customer Support Program, you need not take any action in order to be eligible to participate in the Customer Support Program. If a covered part fails, breaks, or malfunctions due to a defect in materials or workmanship from the date of final approval through the end of the Customer Service Program, you should take your vehicle to a Toyota/Lexus/Scion authorized dealer for repair or adjustment under the Customer Support Program.

 

Very interesting information. Had to scroll through 292 pages to find my 99 LS, but it seems we are covered for quite a few issues for the next three years. Have to read the fine print to see what they will actually pay for.

 

The FAQ outlines everything. They will cover the components listed under the Customer support program that I posted . Just bring it to the dealer, the will contact toyota to approve. They ordered me a new throttle body yesterday.

 

Guys, yesterday i changed sensor on throttle 8945230140 . but i do not notice any changes. Mistake does not light but acceleration has problems.... what should i do??