CP-W004
CP_w004_proximityRationality
Also written as CP_W004 / CP W004 / CP_w004_proximityRationality / cp_w004_proximityrationality
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-W004 mean?
Tesla warning code in the Charge Port (CP) module. This alert is currently used for GB (Guobiao standard - Chinese) charge ports on Model S / X vehicles and PLCRLY electronic control units (ECU) in EU Model S / X vehicles. The alert means the proximity voltage is outside of expected range. These are the expected ranges on vehicles with a GB charge port, the AC portion of the charge port, and the IEC type 2 charge ports: 4.291V to 4.620V - No cable in the GB AC charge port. 4.280V to 4.291V - GB cable in the GB AC charge port, and the button is being held down, meaning the connector is unlatched.3.525V to 3.892V - 10A GB cable in the GB AC charge port. 2.995V to 3.275V - 16A GB cable in the GB AC charge port.1.740V to 2.035V - 32A GB cable in the GB AC charge port.1.020V to 1.220V - 63A GB cable in the GB AC charge port. These are the limits for the DC portion of the GB charge port: For pin CC2: 4.5V to 5.5V - No cable in the GB DC charge port.2.0V to 3.0V - Cable connected to the GB DC charge port.For pin CC1:0.0V to 0.5V - No cable in the GB DC charge port.5.5V to 6.5V - Cable connected to the GB DC charge port.3.5V to 4.5V - Cable latched to the GB DC charge port. Any voltage outside any of these voltage regions will cause a proximityRationality alert and prevent charging.
Original Description
This alert is currently used for GB (Guobiao standard - Chinese) charge ports on Model S / X vehicles and PLCRLY electronic control units (ECU) in EU Model S / X vehicles. The alert means the proximity voltage is outside of expected range. These are the expected ranges on vehicles with a GB charge port, the AC portion of the charge port, and the IEC type 2 charge ports: 4.291V to 4.620V - No cable in the GB AC charge port. 4.280V to 4.291V - GB cable in the GB AC charge port, and the button is being held down, meaning the connector is unlatched.3.525V to 3.892V - 10A GB cable in the GB AC charge port. 2.995V to 3.275V - 16A GB cable in the GB AC charge port.1.740V to 2.035V - 32A GB cable in the GB AC charge port.1.020V to 1.220V - 63A GB cable in the GB AC charge port. These are the limits for the DC portion of the GB charge port: For pin CC2: 4.5V to 5.5V - No cable in the GB DC charge port.2.0V to 3.0V - Cable connected to the GB DC charge port.For pin CC1:0.0V to 0.5V - No cable in the GB DC charge port.5.5V to 6.5V - Cable connected to the GB DC charge port.3.5V to 4.5V - Cable latched to the GB DC charge port. Any voltage outside any of these voltage regions will cause a proximityRationality alert and prevent charging.
Affected Tesla Models
What You May Notice
- Charge port alert: This alert is currently used for GB (Guobiao standard - Chinese) charge ports on Model S / X vehicles and PLCRLY electro
- 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 "This alert is currently used for GB (Guobiao stand" persists, contact Tesla Roadside Assistance
- 5 Schedule a Service Center visit if the problem continues
Severity Notes
CP-W004 is a Warning in the Charge Port system. Schedule service soon. Monitor your vehicle for additional warnings.