Pontiac G5 A/C failure and starting issues with starter wire connection problem on Pontiac G5

Some Pontiac G5 owners report experiencing A/C failure due to common electrical problems such as switch failure, blown AC system fuses, faulty control modules, and harness damage at the AC compressor. These issues can lead to the A/C blowing hot air continuously, indicating a potential need for control unit replacement. Additionally, some owners encounter starting issues, often attributed to a bad starter, battery, or alternator. Troubleshooting these starting problems may involve checking the engine wiring harness and connections from the firewall to the fuse box, as these can affect the vehicle's ability to start. Corrosion and poor contact in crucial connections, such as those between the battery and motor, can also contribute to starting difficulties. Owners are advised to inspect, clean, and re-install these connections to resolve starting issues effectively.