Throttle Position Sensor: Testing and Inspection

Circuit K25 splices to supply 5 Volts to the manifold absolute pressure sensor, camshaft position sensor, and crankshaft position sensor.
Circuit K4 splices to supply ground for the signals from the following:
- Upstream and downstream heated oxygen sensors
- Camshaft position sensor
- Crankshaft position sensor
- Intake air temperature sensor
- Manifold absolute pressure sensor
- Engine coolant temperature sensor
- Vehicle speed sensor