Unleash Your Creativity with p0123 A Guide for Artists and Designers

A P0123 trouble code means that the PCM has recorded a reading from the TPS that exceeds the normal 4.5 volts for more than two seconds. A fault ... P0123 code ? Throttle position sensor NB (1999-2005) General discussion. Code P0123, which is a high TPS voltage. I used my meter and check the voltage and the car is reading at 4.8v at pin 3 and around 5.0v at pin 1 which is over ... The jeep will start fine and idle for a few seconds, then the RPMs will fluctuate and eventually stall. Not too sure what would cause this though. A quick check of youtube revealed the light was commonly attributed to a bad throttle body which seemed easy enough to replace. A P0123 code means that the car's computer has detected that the TPS (throttle position sensor) is reporting too high a voltage. P0123 is not a recognized code. The translation given on your scanner's screen hints that one of the two potentiometers in the "gas" pedal has a wiring fault. I've got a 2014 SE hatchback with a manual transmission that is throwing P0123 & P0223 codes. I've installed 2 different throttle bodies as well as a new pedal. Code P0123 TPS sensor ... Have you tried disconnecting the TPS sensor connector and checking to see if it's clean and tight? It's a quick start ... I have a code P0123 and code P0223 even after I replace the Throttle body module. Also now my car won't accelerate. Throttle Position Sensor.