MyTeslaMate App

Signal Name	Description	Condition	Impact
CP_a066_proxLatchedIdlePilot	Control pilot signal remains in state B1, indicating the charge station is connected to the vehicle but is not ready to charge the vehicle, for too long while a charge cable is plugged into the charge port (CP). Charging may not start or may be interrupted unexpectedly.	Charge handle proximity is detected as connected to the charge port (CP) without charge handle button pressed, and control pilot signal is detected in state B1 for more than five seconds.	Charging may not start or may be interrupted unexpectedly.
CP_a064_superchargingBlocked	The charge port (CP) electronic control unit (ECU) detects that Supercharging is blocked because it is not enabled on the vehicle.	The CP ECU detects that a Supercharger cable is plugged in, but the car configuration does not allow Supercharging.	Supercharging is unavailable.
CP_a109_thermistorIrrational	Thermistor input is open or short circuit	The thermistor reports a voltage less than the open circuit threshold and, if short circuit detection is supported, greater than the short circuit threshold for at least one second.	Charging and heating functions do not work as expected.
CP_a095_thermalDcLimitActive	The charge port DC pin temperatures have entered a region where its thermal foldback limits are dynamically changing	The charge port DC pin temperature hits its active threshold	DC charge current may be limited
CP_a047_lostCommsVCFRONT	Lost comms with VCFRONT	Charge port does not receive all expected CAN messages from the VCFRONT	Charging may not start, charge port door and latch may not actuate, charge port LEDs may not turn on
CP_a059_swcanError	The charge port (CP) electronic control unit (ECU) is unable to establish single wire controller area network (SWCAN) communications.	The CP ECU cannot establish SWCAN communications after multiple attempts.	Charging does not start or is interrupted.
CP_a058_acChargeRetryPending	The charge port (CP) electronic control unit (ECU) will delay an attempt to AC charge	The CP ECU detects that the electric vehicle supply equipment (EVSE) has encountered an issue too many times while AC charging.	Charging does not start or is interrupted.
CP_a044_lostCommsHVP	The charge port (CP) electronic control unit (ECU) loses communication with the high voltage processor (HVP).	The CP ECU does not receive all of the expected controller area network (CAN) messages from the HVP.	Charging does not start.
CP_a060_lostCommsPCS	The charge port (CP) electronic control unit (ECU) loses communication with the power conversion system (PCS).	The CP ECU does not receive all expected CAN messages from the PCS.	AC charging does not start.
CP_a061_uhfReceiverMIA	The charge port (CP) electronic control unit (ECU) detects that the ultra-high frequency (UHF) receiver is missing (MIA).	The CP ECU receiver no longer receives serial peripheral interface (SPI) communications from the UHF receiver.	The CP door cannot be opened with the Tesla charge handle button.
CP_a043_doorPotIrrational	The charge port (CP) electronic control unit (ECU) detects an issue with the CP door potentiometer.	The CP ECU detects that the CP door potentiometer is behaving erratically, based on sensor readings.	The CP door does not open or close as designed.
CP_a054_cableNotSecured	Charge port (CP) expects the cable to be secured, but the charge port latch has not secured the cable in place. AC charge rate may be reduced, and DC charging may be unavailable.	A charge cable is detected. The charge port (CP) latch position sensor indicates the latch is disengaged, either after the charge port has attempted to engage the latch or when the latch is already expected to be engaged.	AC charge rate may be reduced, and DC charging may be unavailable.
CP_a042_doorAssemblyBroken	The charge port (CP) electronic control unit (CPU) detects an issue with the charge port door assembly.	The CP door potentiometer reads greater than 90% for more than 2 seconds or the potentiometer reading wraps around.	The charge port door does not actuate as expected.
CP_a041_doorSensorUnplugged	The charge port (CP) electronic control unit (ECU) detects that the charge port door sensor is unplugged.	The CP door potentiometer reads less than 1% for more than 2 seconds.	The CP door does not actuate properly.
CP_a039_latchMovement_2	The charge port (CP) electronic control unit (ECU) detects that the latch has been manually disengaged.	The CP ECU detects that the latch transitions to the disengaged state from the engaged or blocking state without actuating it.	Charging is interrupted.
CP_a038_latchNotBlocking	The charge port (CP) electronic control unit (ECU) detects that the latch is not in the blocking position when it is expected to be.	The latch position sensor indicates that the latch is disengaged after the CP attempts to engage the latch fully, or if the latch is expected to be blocking cable insertion.	The latch does not block cable insertion when it is expected to.
CP_a037_latchNotEngaged	The charge port (CP) latch is expected to be engaged but is not engaged. AC charge rate may be reduced, and DC charging may be unavailable.	The charge port (CP) latch position sensor indicates the latch is disengaged, either after the charge port has attempted to engage the latch or when the latch is already expected to be engaged.	The charge port (CP) latch may not engage as expected. AC charge rate may be reduced, and DC charging may be unavailable.
CP_a036_latchNotDisengaged	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 may not disengage, charge cable may become stuck, or user may be unable to insert charge cable.
CP_a035_latchMovement_1	The charge port (CP) electronic control unit (ECU) detects that the latch has been manually disengaged.	The CP ECU detects that the latch transitions to the disengaged state from the engaged or blocking state without actuating it.	Charging is interrupted.
CP_a034_calibrationIncomplete	Latch calibration data is unavailable.	EEPROM indicates that the latch offset is not valid for more than 1 second.	The CP ECU may not be able to detects the latch position correctly, and the latch may not engage or disengage.

CP_a066_proxLatchedIdlePilot

Control pilot signal remains in state B1, indicating the charge station is connected to the vehicle but is not ready to charge the vehicle, for too long while a charge cable is plugged into the charge port (CP). Charging may not start or may be interrupted unexpectedly.

Charge handle proximity is detected as connected to the charge port (CP) without charge handle button pressed, and control pilot signal is detected in state B1 for more than five seconds.

Charging may not start or may be interrupted unexpectedly.

CP_a064_superchargingBlocked

The charge port (CP) electronic control unit (ECU) detects that Supercharging is blocked because it is not enabled on the vehicle.

The CP ECU detects that a Supercharger cable is plugged in, but the car configuration does not allow Supercharging.

Supercharging is unavailable.

CP_a109_thermistorIrrational

Thermistor input is open or short circuit

The thermistor reports a voltage less than the open circuit threshold and, if short circuit detection is supported, greater than the short circuit threshold for at least one second.

Charging and heating functions do not work as expected.

CP_a095_thermalDcLimitActive

The charge port DC pin temperatures have entered a region where its thermal foldback limits are dynamically changing

The charge port DC pin temperature hits its active threshold

DC charge current may be limited

CP_a047_lostCommsVCFRONT

Lost comms with VCFRONT

Charge port does not receive all expected CAN messages from the VCFRONT

Charging may not start, charge port door and latch may not actuate, charge port LEDs may not turn on

CP_a059_swcanError

The charge port (CP) electronic control unit (ECU) is unable to establish single wire controller area network (SWCAN) communications.

The CP ECU cannot establish SWCAN communications after multiple attempts.

Charging does not start or is interrupted.

CP_a058_acChargeRetryPending

The charge port (CP) electronic control unit (ECU) will delay an attempt to AC charge

The CP ECU detects that the electric vehicle supply equipment (EVSE) has encountered an issue too many times while AC charging.

Charging does not start or is interrupted.

CP_a044_lostCommsHVP

The charge port (CP) electronic control unit (ECU) loses communication with the high voltage processor (HVP).

The CP ECU does not receive all of the expected controller area network (CAN) messages from the HVP.

Charging does not start.

CP_a060_lostCommsPCS

The charge port (CP) electronic control unit (ECU) loses communication with the power conversion system (PCS).

The CP ECU does not receive all expected CAN messages from the PCS.

AC charging does not start.

CP_a061_uhfReceiverMIA

The charge port (CP) electronic control unit (ECU) detects that the ultra-high frequency (UHF) receiver is missing (MIA).

The CP ECU receiver no longer receives serial peripheral interface (SPI) communications from the UHF receiver.

The CP door cannot be opened with the Tesla charge handle button.

CP_a043_doorPotIrrational

The charge port (CP) electronic control unit (ECU) detects an issue with the CP door potentiometer.

The CP ECU detects that the CP door potentiometer is behaving erratically, based on sensor readings.

The CP door does not open or close as designed.

CP_a054_cableNotSecured

Charge port (CP) expects the cable to be secured, but the charge port latch has not secured the cable in place. AC charge rate may be reduced, and DC charging may be unavailable.

A charge cable is detected. The charge port (CP) latch position sensor indicates the latch is disengaged, either after the charge port has attempted to engage the latch or when the latch is already expected to be engaged.

AC charge rate may be reduced, and DC charging may be unavailable.

CP_a042_doorAssemblyBroken

The charge port (CP) electronic control unit (CPU) detects an issue with the charge port door assembly.

The CP door potentiometer reads greater than 90% for more than 2 seconds or the potentiometer reading wraps around.

The charge port door does not actuate as expected.

CP_a041_doorSensorUnplugged

The charge port (CP) electronic control unit (ECU) detects that the charge port door sensor is unplugged.

The CP door potentiometer reads less than 1% for more than 2 seconds.

The CP door does not actuate properly.

CP_a039_latchMovement_2

The charge port (CP) electronic control unit (ECU) detects that the latch has been manually disengaged.

The CP ECU detects that the latch transitions to the disengaged state from the engaged or blocking state without actuating it.

Charging is interrupted.

CP_a038_latchNotBlocking

The charge port (CP) electronic control unit (ECU) detects that the latch is not in the blocking position when it is expected to be.

The latch position sensor indicates that the latch is disengaged after the CP attempts to engage the latch fully, or if the latch is expected to be blocking cable insertion.

The latch does not block cable insertion when it is expected to.

CP_a037_latchNotEngaged

The charge port (CP) latch is expected to be engaged but is not engaged. AC charge rate may be reduced, and DC charging may be unavailable.

The charge port (CP) latch position sensor indicates the latch is disengaged, either after the charge port has attempted to engage the latch or when the latch is already expected to be engaged.

The charge port (CP) latch may not engage as expected. AC charge rate may be reduced, and DC charging may be unavailable.

CP_a036_latchNotDisengaged

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 may not disengage, charge cable may become stuck, or user may be unable to insert charge cable.

CP_a035_latchMovement_1

The charge port (CP) electronic control unit (ECU) detects that the latch has been manually disengaged.

The CP ECU detects that the latch transitions to the disengaged state from the engaged or blocking state without actuating it.

Charging is interrupted.

CP_a034_calibrationIncomplete

Latch calibration data is unavailable.

EEPROM indicates that the latch offset is not valid for more than 1 second.

The CP ECU may not be able to detects the latch position correctly, and the latch may not engage or disengage.

Alerts

Alerts