CHG-F103
CHG_f103_lostCommsSlave
Also written as CHG_F103 / CHG F103 / CHG_f103_lostCommsSlave / chg_f103_lostcommsslave
Why does the exact Tesla alert ID matter?
Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.
What does CHG-F103 mean?
Tesla fault code in the Charger (CHG) module. This alert indicates there is an internal communication malfunction between the charger's vehicle interface processor and the secondary charger.
Original Description
This alert indicates there is an internal communication malfunction between the charger's vehicle interface processor and the secondary charger.
Affected Tesla Models
What You May Notice
- Charger alert: This alert indicates there is an internal communication malfunction between the charger's vehicle interface processor an
- Vehicle shows charging error immediately after plugging in
- Charge port light stays red or does not respond
How to Diagnose and Resolve
- 1 Try a different outlet or charging cable
- 2 Check if your circuit breaker has tripped
- 3 Reboot the vehicle and attempt to charge again
- 4 Schedule a Tesla Service appointment — the on-board charger may need replacement
Severity Notes
CHG-F103 is classified as a Fault, indicating a critical issue in the Charger system. Do not continue driving and contact Tesla Service immediately.