The TP sensor is a rotary potentiometer sensor that provides a signal to the PCM that is linearly proportional to the throttle plate/shaft position. The sensor housing has a 3-blade electrical connector that may be gold plated. The gold plating increases the corrosion resistance on the terminals and increases the connector durability. The TP sensor is mounted on the throttle body. As the TP sensor is rotated by the throttle shaft, 4 operating conditions are determined by the PCM from the TP.
The operating conditions are:
Removal & Installation
- Throttle position (TP) sensor electrical connector
- TP screws (2 required)
- TP sensor
- Disconnect the battery ground cable.
Disconnect the throttle position (TP) sensor the throttle body electrical connector.
CAUTIONFailure to remove the TP sensor screws in the following manner will result in damage to the screws.
- First loosen the screws 1-2 full turns using a hand tool, and then use a suitable high-speed driver to complete the removal.
Remove and discard the 2 screws and the TP sensor.
CAUTIONDo not reuse the TP sensor and screws. A new TP sensor and screws must be installed.
- Position the new TP sensor and install the 2 new screws. Tighten to 27 inch lbs. (3 Nm).
- Connect the TP sensor electrical connector.
TP Sensor Pin Testing
This pinpoint test is intended to diagnose the following: