Truck starts and runs no gauges and "no buss" in odometer

1. Check the powers and grounds at the Powertrain Control Module (PCM) on pins 2 and 22 for the power, then pins 31 and 32 for ground on the C1 connector at the PCM. 2. Next, the 5 volt power supplies for shorts to ground. The Manifold Absolute Pressure (MAP) sensor, Throttle Position Sensor (TPS), Crankshaft Position (CKP) sensor, Camshaft Position (CMP) sensor and the A/C pressure transducer are all powered by the two 5 volt supplies coming from pin 17 on the C1 connector and pin 31 of the C2 connector. 3. Backprobe into one of the 5 volt power supplies at the PCM with a Digital Volt Ohm Meter (DVOM) and start unplugging the sensors one at a time, when the offending sensor is found, the 5 volts will return to normal. Many times when this happens the vehicle will not start. Another valid test is called a tap test. Have the vehicle running and while watching the instrument cluster lightly tap on the PCM to see if the problem occurs while tapping. This is a valid test noted per ASE testing procedures. Good luck