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Symptom: P0122-THROTTLE POSITION SENSOR VOLTAGE LOW When Monitored and Set Condition: P0122-THROTTLE POSITION SENSOR VOLTAGE LOW When Monitored: With the ignition on. Battery voltage greater than 10.4 volts. Set Condition: Throttle Position Sensor voltage at the PCM is less than 0.16 volt for 0.7 seconds. POSSIBLE CAUSES TP SENSOR VOLTAGE BELOW 0.2 (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO (K900) SENSOR GROUND CIRCUIT (F855) 5-VOLT SUPPLY CIRCUIT OPEN TP SENSOR INTERNAL FAILURE (K22) TP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND (K22) TP SENSOR SIGNAL CIRCUIT SHORTED TO (K900) SENSOR GROUND CIRCUIT TCM INTERNALLY SHORTED TP SIGNAL CIRCUIT PCM TEST ACTION APPLICABILITY 1 Turn the ignition on. t, read the TP Sensor voltage. Is the voltage below 0.2 of a volt? All Yes → Go To 2 No → Refer to the INTERMITTENT CONDITION symptom in the Driveability category. 2 Turn the ignition off. All Yes → Go To 3 No → Go To 7 55 DRIVEABILITY - SBEC |