Diagnostic Trouble Code
P2127
Throttle Position Sensor E Circuit Low Input
Technical Description P2127
Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input
What Does This Mean P2127?
This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make/model.
A P2127 code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. On some vehicles that lower limit is 0.17 - 0.20 volts (V). The "E" refers to a particular circuit, sensor, or area of a particular circuit.
Did you adjust it when you installed it? If the signal value is less than .17V then the PCM sets this code. Could be an open or a short to ground in the signal circuit. Or you may have lost the 5 Volt reference voltage.
A P2127 code means that the the car's computer has detected that the TPS (throttle position sensor) is reporting too low a voltage. On some vehicles that lower limit is 0.17 - 0.20 volts (V). The "E" refers to a particular circuit, sensor, or area of a particular circuit.
Did you adjust it when you installed it? If the signal value is less than .17V then the PCM sets this code. Could be an open or a short to ground in the signal circuit. Or you may have lost the 5 Volt reference voltage.
Symptoms P2127
1
Rough or low idle
2
Stalling
3
Surging
4
No/little acceleration
5
other symptoms may also be present
Possible Causes P2127
1
TPS not mounted securely
2
TPS circuit short to ground or another wire
3
Faulty TPS
4
Damaged computer (PCM)
Solutions & Repair Steps P2127
Some recommended troubleshooting and repair steps are: