CP-A125
CP_a125_unexpectedLVJuiceState
Also written as CP_A125 / CP A125 / CP_a125_unexpectedLVJuiceState / cp_a125_unexpectedlvjuicestate
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 CP-A125 mean?
Tesla alert code in the Charge Port (CP) module. The charge port is unexpectedly not allowed to use high power from LV bus Charge port is not allowed to use high power from the LV bus Charge port is granted permission to use high power from LV bus Charge port latch, door, and inlet heater will not behave as expected The charge port either timed out during a mode request or failed to enter the requested mode Charge port detected a unexpected fast rise in temperature Charge port thermal velocity (calculated each minute) exceeds the expected rise in temperature. Once the charge cable is connected Thermistor is greater than the open circuit threshold and, if short circuit detection is supported, less than the short circuit threshold for at least one second Continued charging may result in damage to the vehicle The CP has detected a hardware condition that would prevent the microcontroller from going to sleep The CP has detected that the Gen 2 Wall Connector has measured a temperature at which AC charging should begin to fold back info from manualCP_A101 The Gen 2 Wall Connector reports a temperature greater than 80C Charge Port door potentiometer damaged info from manualCP_A043 The CP door potentiometer behaves erratically The CP door behaves rationally through several door cycles Charge port door may not open or close as designed Cable proximity did not latch within the expected timeframe Cable proximity remains unlatched for an unexpected long duration Cleared when proximity changes from unlatched The CP is unable to confirm the state of the charge cable
Original Description
The charge port is unexpectedly not allowed to use high power from LV bus Charge port is not allowed to use high power from the LV bus Charge port is granted permission to use high power from LV bus Charge port latch, door, and inlet heater will not behave as expected The charge port either timed out during a mode request or failed to enter the requested mode Charge port detected a unexpected fast rise in temperature Charge port thermal velocity (calculated each minute) exceeds the expected rise in temperature. Once the charge cable is connected Thermistor is greater than the open circuit threshold and, if short circuit detection is supported, less than the short circuit threshold for at least one second Continued charging may result in damage to the vehicle The CP has detected a hardware condition that would prevent the microcontroller from going to sleep The CP has detected that the Gen 2 Wall Connector has measured a temperature at which AC charging should begin to fold back info from manualCP_A101 The Gen 2 Wall Connector reports a temperature greater than 80C Charge Port door potentiometer damaged info from manualCP_A043 The CP door potentiometer behaves erratically The CP door behaves rationally through several door cycles Charge port door may not open or close as designed Cable proximity did not latch within the expected timeframe Cable proximity remains unlatched for an unexpected long duration Cleared when proximity changes from unlatched The CP is unable to confirm the state of the charge cable
Affected Tesla Models
What You May Notice
- Charge port alert: The charge port is unexpectedly not allowed to use high power from LV bus Charge port is not allowed to use high power f
- Charging session may be interrupted or not starting as expected
- Charge port light flashing amber or red
How to Diagnose and Resolve
- 1 Unplug and re-plug the charge cable
- 2 Try a different charging cable or Supercharger stall
- 3 Reboot the vehicle and attempt to charge again
- 4 If "The charge port is unexpectedly not allowed to use" persists, contact Tesla Roadside Assistance
- 5 Schedule a Service Center visit if the problem continues
Severity Notes
CP-A125 is an Alert in the Charge Port system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.