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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 ... Your TPS itself is bad or the wiring and connection are bad. If you are going to replace the TPS, check the wiring and connector to the current one first. 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. The common causes of TPS errors (apart from aftermarket throttle bodies and aftermarket TPS sensors): - TPS sensors go bad, especially in ... The TPS sensor should produce around .5v at full closed throttle plate and around 4.5v with the pedal all the way down. I am getting P0123 Throttle/pedal position sensor/switch A circuit high. I have been told first thing to do is clean electrical connections at either end. I have error code P0123-Tps Circuit High. Tried to look and see the connector, saw that one of the pins was disconnected, re wired it, was running fine until I ... Dodge/Ram Diesel Tech - DTC P0123 Throttle/Pedal Position Sensor A Circuit High Input - Can anyone explain what might be the cause DTC P0123 ... 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 ODBII code P0123 indicates that the Throttle Position Sensor (TPS) is sending a high voltage signal to the engine control module (ECM), ...