Trottle Control Moter Lock Malfuntion

Martin Gillespie · January 31, 2014

After putting in a new TPS , I was told I have the above problem, any ideas

steve2006 · January 31, 2014

Was the TPS correctly set up/aligned using the factory proceedure?

If the throttle pedal is pressed during fitment of the TPS it can throw the whole system out.

Titch LS · January 31, 2014

Martin, look very carefully to see if any vacuum lines are uncoupled or damaged. You will need to remove the engine cover. On U.S. cars your problem throws up the code P1128 which refers to the throttle control motor lock. (Our cars are not as strictly OBD2 compliant as the U.S. cars, so harder to read, and expensive at Lexus). An owner there had this code and it turned out to be just a damaged vacuum line. If it is, it's an easy fix.

black400 · February 1, 2014

will check that out , the mechanic is a polish lad and is good , he said the motor moves 2 mm either way,if any one here can direct me to a second hand one i would to extremly happy.wifes car my one if fine and that does not go down well.