Jeep Repair: 96 jeep cherokee sport speedometer doesnt work, coolant temperature sensor, powertrain control module pcm


Question
I have replaced the speed sensor on the transmission and it still doesnt work the jeep is amanual trsmission do you know of anything else it could be thanks

Answer
VEHICLE SPEED SENSOR
Circuit K7 supplies 5 volts from the Powertrain Control Module (PCM) to the vehicle speed sensor. The K7 circuit connects to cavity B31 of the PCM.

Circuit G7 from the vehicle speed sensor provides an input signal to the PCM. The G7 circuit connects to cavity B27 of the PCM.

The PCM provides a ground for the vehicle speed sensor signal (circuit G7) through circuit K4. Circuit K4 connects to cavity A4 of the PCM.

HELPFUL INFORMATION
Circuit K4 splices to supply ground for the signals from the following:

Heated oxygen sensor
Camshaft position sensor
Crankshaft position sensor
Throttle position sensor
Manifold absolute pressure sensor
Engine coolant temperature sensor
Intake air temperature sensor