DTC 73

DTC 73: MAP (Manifold Absolute Pressure) Sensor, Throttle Position Sensor, or PCM
1. Clear the DTC.
2. Test-drive the vehicle, and watch for the VTM-4 indicator.
Does the VTM-4 indicator come on?
YES-Go to step 3.
NO- The system is OK at this time.
3. Watch the MIL.
Does the MIL come on?
YES-Inspect the Fuel and Emissions system.
NO- Check for loose terminal fit in the VTM-4 control unit and the PCM connectors. If it is normal, replace the VTM-4 control united