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Symptom: P0120-THROTTLE POSITION SENSOR SIGNAL CIRCUIT When Monitored and Set Condition: P0120-THROTTLE POSITION SENSOR SIGNAL CIRCUIT When Monitored: Whenever the engine is running. Set Condition: This code is set if the throttle angle goes out of range or if throttle angle changes abruptly (i.e.: faster than the throttle body motion could occur). POSSIBLE CAUSES RELATED TPS PCM DTC’S PRESENT INTERMITTENT WIRING & CONNECTORS CONDITIONS TPS VOLTAGE CHANGE NOT SMOOTH SENSOR GROUND CIRCUIT OPEN TO TCM TPS SIGNAL CIRCUIT OPEN TO TCM TCM - THROTTLE POSITION CIRCUIT TEST ACTION APPLICABILITY 1 NOTE: Low fluid level can be the cause of many transmission problems. If t, read the engine DTC’s. Check and repair all engine DTC’s prior to performing transmission symptom diagnostics. t, read Transmission DTC’s. Record all DTC’s and 1 Trip Failures. NOTE: Diagnose 1 Trip Failures as a fully matured DTC. 45RFE AUTO TRANS Continue 27 TRANSMISSION |