Charging system troubleshooting
Diagnostics
If your Tesla has trouble charging or doesn’t charge, finding the cause and solution can be complex. It requires conducting complete diagnostics of the Tesla charging system that covers all components involved in charging, from the charging port to the battery.
Supercharge troubleshooting
The inability to supercharge or slow changing speed not connected with external causes signals an issue in the HV system. Troubleshooting includes computer checks for error codes, visual inspection of HV components, and specialized testing using diagnostic equipment.
Onboard charger replacement & programming
If Tesla doesn’t charge from home sockets but charges at supercharging stations, it often indicates a problem with the onboard charger. Repairing it is generally not possible. It must be replaced and correctly programmed for compatibility with the vehicle.
Charge port & charge port door replacement
If your Tesla has trouble charging or doesn’t charge, it may be due to the charging port or charging port door having been damaged due to an accident, wear and tear, or malfunction. Damaged components must be replaced to ensure proper operation of the charging port.
HVIL troubleshooting
If HVIL sends an alert or trouble code, it means that it detects that some HV components become loose, disconnected, or damaged. Troubleshooting HVIL involves computer diagnostics, visual inspection, and specific diagnostics to test components and wiring.
Charge port red light troubleshooting
A red light on the charging port means charging has stopped. A fault message may also appear on the touchscreen. The fault may be caused by a power outage or various electronics or software issues. Charging system diagnostics helps to find the cause of the problem.