What does the code P0123 mean?
P0123 is the generic OBD-II code which indicates that the Engine Control Module (ECM) has seen the TPS circuit A output voltage go above the sensor’s expected voltage specification range.
What does high voltage mean on O2 sensor?
If the sensor voltage signal is between 100 mV-900 mV (0.10 to 0.90V), it indicates that the O2 oxygen sensor is functioning properly. If the reading is outside the specified range, the sensor is defective.
What is the voltage of the TPS sensor?
Set conditions, the TPS 1 sensor input voltage is above 4.65 volts for 0.07 seconds. Default actions, ETC light will flash, MIL light will illuminate, the Throttle input and vehicle speed are limited. 5-Volt supply circuit shorted to voltage. TPS signal 1 circuit shorted to voltage. TPS signal 1 circuit shorted to the 5-Volt supply circuit.
What is the TPS code for the throttle position sensor?
The most common throttle position sensor code is the P0122 – Throttle Position Sensor/Switch A Circuit Low Input. It’s triggered when the ECU detects that the TPS circuit A is outputting a lower voltage than expected. The other TPS codes are: P0120 – Throttle Position Sensor/Switch A Circuit Malfunction
How is the p0123 Throttle Position Sensor 1 circuit high?
P0123 Throttle Position Sensor 1 circuit high – With the ignition on, battery voltage greater than 6.98 volts. Set conditions, the TPS 1 sensor input voltage is above 4.65 volts for 0.07 seconds. Default actions, ETC light will flash, MIL light will illuminate, the Throttle input and vehicle speed are limited.
What is the diagnostic code for O2 sensor circuit high voltage?
P0138 is a diagnostic trouble code (DTC) for “O2 Sensor Circuit High Voltage (Bank 1, Sensor 2)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
The most common throttle position sensor code is the P0122 – Throttle Position Sensor/Switch A Circuit Low Input. It’s triggered when the ECU detects that the TPS circuit A is outputting a lower voltage than expected. The other TPS codes are: P0120 – Throttle Position Sensor/Switch A Circuit Malfunction
Set conditions, the TPS 1 sensor input voltage is above 4.65 volts for 0.07 seconds. Default actions, ETC light will flash, MIL light will illuminate, the Throttle input and vehicle speed are limited. 5-Volt supply circuit shorted to voltage. TPS signal 1 circuit shorted to voltage. TPS signal 1 circuit shorted to the 5-Volt supply circuit.
What should I do if my O2 sensor is high?
Monitors O2 sensor data to see if the voltage is switching back and forth between low and high at a fast rate compared to other sensors. Checks the O2 sensor wiring and the harness connections for any corrosion in the connections. Checks the O2 sensor for any physical damage or fluid contamination. Checks for exhaust leaks before the sensor.