Codes were checked with a Aeroforce II gauge. The gauge also is showing my battery voltage at a steady 13.2 to 13.4.
Sounds like a trip to the dealer may be your best bet.
Before you go, there are some things you can look at.
From the factory service manual:
To perform a complete test of the charging system, refer to a diagnostic scan tool. Perform the following inspections before attaching the scan tool.
1. Inspect the battery condition. Refer to 8, Battery for procedures.
2. Inspect condition of battery cable terminals, battery posts, connections at engine block, starter solenoid and relay. They should be clean and tight. Repair as required.
3. Inspect all fuses in both the fuseblock and Power Distribution Center (PDC) for tightness in receptacles. They should be properly installed and tight. Repair or replace as required.
4. Inspect generator mounting bolts for tightness. Replace or tighten bolts if required. Refer to the Generator Removal/Installation section of this group for torque specifications.
5. Inspect generator drive belt condition and tension. Tighten or replace belt as required. Refer to Belt Tension Specifications in 7, Cooling System.
6. Inspect automatic belt tensioner (if equipped). Refer to 7, Cooling System for information.
7. Inspect generator electrical connections at generator field, battery output, and ground terminal (if equipped). Also check generator ground wire connection at engine (if equipped). They should all be clean and tight. Repair as required.