CP-A100
CP_a100_inletHarnessIdIrrational
Also written as CP_A100 / CP A100 / CP_a100_inletHarnessIdIrrational / cp_a100_inletharnessidirrational
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-A100 mean?
Tesla alert code in the Charge Port (CP) module. The CP is unable to identify type of inlet harness connected Charge port (CP) latch is expected to be disengaged but remains engaged. Charge cable may become stuck, or user may be unable to insert charge cable. The charge port (CP) latch position sensor indicates the latch is still engaged or blocked after the charge port has attempted to disengage the latch. The charge port (CP) latch disengages. The charge port (CP) latch may not disengage, charge cable may become stuck, or user may be unable to insert charge cable. Charge port does not receive all expected CAN messages from the PCS Charge port receives all expected CAN messages from the PCS Invalid MAC address written to CP genealogy MAC address stored in genealogy is invalid MAC address stored in genealogy is valid
Original Description
The CP is unable to identify type of inlet harness connected Charge port (CP) latch is expected to be disengaged but remains engaged. Charge cable may become stuck, or user may be unable to insert charge cable. The charge port (CP) latch position sensor indicates the latch is still engaged or blocked after the charge port has attempted to disengage the latch. The charge port (CP) latch disengages. The charge port (CP) latch may not disengage, charge cable may become stuck, or user may be unable to insert charge cable. Charge port does not receive all expected CAN messages from the PCS Charge port receives all expected CAN messages from the PCS Invalid MAC address written to CP genealogy MAC address stored in genealogy is invalid MAC address stored in genealogy is valid
Affected Tesla Models
What You May Notice
- Charge port alert: The CP is unable to identify type of inlet harness connected Charge port (CP) latch is expected to be disengaged but rem
- 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 CP is unable to identify type of inlet harness" persists, contact Tesla Roadside Assistance
- 5 Schedule a Service Center visit if the problem continues
Severity Notes
CP-A100 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.