TESLA Warning
CHG_w120
CHG_w120_HVJB_powerFault
What does CHG_w120 mean?
Tesla warning code in the Charger (CHG) module. The high voltage junction box (HVJB) 12V power supply is below 11.54V.
Original Description
The high voltage junction box (HVJB) 12V power supply is below 11.54V.
Severity Notes
CHG_w120 is a Warning in the Charger system. Schedule service soon. Monitor your vehicle for additional warnings.
Other CHG Codes
CHG_d001 The alert indicates a potential internal hardware issue with... CHG_d011 CHG_f001 The charger reports a fault at the buck stage due to a detec... CHG_f002 This alert indicates the charger boost voltage is not at the... CHG_f009 The charger's Complex Programmable Logic Device (CPLD) has d... CHG_f010 This alert is set when the charger's Complex Programmable Lo... CHG_f011 The charging hardware detected that the input voltage was to... CHG_f012 The Fast Charger (FC) contactor drive circuit has shorted to...
View all CHG codes → Tesla alert codes sourced from the community-maintained Tesla Alerts Dictionary. This information is for educational purposes only. Always consult Tesla Service for official diagnosis and repairs.