Unlock the Secrets of p0123 A Comprehensive Overview

It sounds like the spot check is OK, Try wiggling and moving the wires. The computer only has to see the high voltage for .5 seconds to set the code. A quick check of youtube revealed the light was commonly attributed to a bad throttle body which seemed easy enough to replace. The P0123 code means the PCM sees the voltage as too high in the TPS circuitry. The TPS uses the 5 volt reference circuit to provide it's signal to the PCM. Used parts? Could be a failed TPS, but double check any wiring you spliced. *rolls into ... The reference voltage should be 5V. The reading at idle should be .6V. The WOT reading should be above 4.0V, but when it goes above 4.75V, the DTC gets set. I got the code P0123 so I figured I'd check the Tps sensor voltage and it was reading fine (has power, signal, ground) also checked it with throttle open and ... P0123 is TPS1 (throttle position sensor) shorted high. P0222 is TPS2 shorted low. Considering that they're 'shorted' in opposite directions I'd ... The problem is with the throttle or pedal position sensor high input. Is it possible to find the correct repair with just a multimeter since I can't afford a ... The quick and dirty way to make that code go away is to leave the key off and pump the gas pedal all the way up or down 50 times to clean the ... P0123 TPS Voltage Higher than max limit - Jeep ... This was the first time I have ever seen 12v on a potentiometer style throttle position sensor. The spec for ...