Throttle Position Sensor

WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.

For Throttle Position (TP) sensor testing, perform appropriate TP sensor diagnostic test. See the following:

On 3.9L and 5.9L, see DIAGNOSTIC TROUBLE CODE DEFINITIONS in SELF-DIAGNOSTICS - DAKOTA - 3.9L & 5.9L article.
On 4.7L, perform DTC P0121: THROTTLE POSITION SENSOR #1 PERFORMANCE under DIAGNOSTIC TEST in SELF-DIAGNOSTICS - DAKOTA - 4.7L article.