P1120 - Throttle Position (TP) Sensor Out Of Range Low (RATCH Too Low)

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P1120 - THROTTLE POSITION (TP) SENSOR OUT OF RANGE LOW (RATCH TOO LOW)

Description:	The TP sensor circuit is monitored by the PCM for a low TP rotation angle (or voltage) input below the closed throttle position through the comprehensive component monitor (CCM). If during key ON, engine OFF or key ON, engine running, the TP rotation angle (or voltage) remains within the calibrated self-test range but falls between 3.42 and 9.85% (0.17 and 0.49 volt), the test fails.
Possible Causes:	TP circuit with frayed wires. Corrosion on the TP circuit connectors. VREF open to TP sensor. VREF short to SIG RTN. TP sensor loose pins.
Diagnostic Aids:	A TP PID (TP V PID) between 3.42 and 9.85% (0.17 and 0.49 volt) in key ON engine OFF, continuous memory or key ON engine running indicates a hard fault.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to DH: Throttle Position (TP) Sensor STEP 3