MyTeslaMate App

Signal Name	Description	Condition	Impact	Important
CP_a189_resistivePresenceRationality	The Charge Port (CP) Electronic Control Unit (ECU) is reading irrational values from resistive divider located in the CP door, which may prevent the CP door from opening when pressed.	The values from the resistive divider in the CP door are outside of the expected range.	The CP may not be able to determine the state of the manual door.	No
CP_a185_pncAuthRejection	The charging station reports a payment authorization failure.	The charging station reports a payment authorization failure.	Charging may stop and not restart.	No
CP_a162_pilotEdgeDetectionFailedCN	The Charge Port (CP) Electronic Control Unit (ECU) is unable to detect the control pilot signal due to an internal condition on the CP ECU. AC charging may be unavailable.	The CP ECU is unable to receive the expected control pilot signal waveform due to an internal condition on the CP ECU.	AC charging may not be operational on the next attempt. DC fast charging should remain functional.	No
CP_a161_badPilotDiodeDetectedCN	The charge port (CP) electronic control unit (ECU) detects that the control pilot voltage is not within its nominal range indicating a possible issue with the ECU.	The CP ECU detects that the voltage of the control pilot never goes below -10V.	AC charging may not be operational on the next attempt. DC fast charging should remain functional.	No
CP_w018_fiveVuv	The charge port (CP) electronic control unit (ECU) detects an under voltage condition on the internal 5V power supply.	The internal 5V power supply voltage measured by the CP ECU is below 4.5V.	The charge port may not function as expected.	No
CP_a156_gbdcPrechargingConcern	The vehicle controller detects that precharging the high voltage (HV) DC bus may be unsuccessful, which may lead to the inability to close the HV contactors and a complete loss of vehicle power. Charging vehicles with GB (charging standard used in China) charge ports requires opening and closing the HV contactors.	The vehicle controller detects that precharging the HV DC bus may be unsuccessful.	If GB DC charging is attempted, the charge session may fail, the HV contactors may not close again, and there may be a complete loss of LV power.	No
CP_a155_hallPresenceRationality	The charge port (CP) electronic control unit (ECU) is reading irrational values from the CP door hall effect sensor located in the CP door, which may prevent the CP door from opening when pressed.	The CP ECU detects irrational values from the hall effect sensor in the CP door that are outside of the expected range.	The CP door may not open when it is pressed.	No
CP_a154_acChargingStoppedOT	The charge port inlet pin temperature has reached an unacceptable level (greatly exceeds normal operating range), causing AC charging to stop.	The charge port inlet pin temperature reaches a level where it is unacceptable to continue AC charging (temperature detected greatly exceeds normal operating range).	AC charging will be interrupted and remain unavailable until a charge cable cycle occurs (disconnect and reconnect) and the charge port inlet pin temperature returns to normal operating range.	No
CP_a153_thermalAcLimitActive	The charge port inlet pin temperature has reached a level where limiting AC charge current is necessary until temperature returns to normal operating range.	The charge port inlet pin temperature reaches an unexpected level (temperature detected exceeds normal operating range).	AC charge current is limited.	No
CP_a152_pilotEdgeDetectionFailed	The Charge Port (CP) Electronic Control Unit (ECU) is unable to detect the control pilot signal due to an internal condition on the CP ECU. Charging may be unavailable.	The CP ECU is unable to receive the expected control pilot signal waveform due to an internal condition on the CP ECU.	Charging may be unavailable during the next charge attempt.	No
CP_a151_badPilotDiodeDetected	The charge port (CP) electronic control unit (ECU) detects the control pilot voltage is outside of the nominal range while using Tesla electric vehicle supply equipment (EVSE), indicating an internal condition on the CP ECU.	The CP ECU detects the control pilot voltage did not go below -10V while using Tesla EVSE.	AC charging may be unavailable during the next charging session. No expected impact on Supercharging functionality.	No
CP_a146_ccsEvseMalfunction	The Combined Charging System (CCS) charge station reports that it has experienced an unrecoverable error. Charging may not start or may be interrupted, with a charge cable cycle (disconnect, then reconnect to vehicle) required before charging can start or resume.	The Combined Charging System (CCS) charge station sends a message indicating it has experienced an unrecoverable error.	Charging may not start or may be unexpectedly interrupted. A charge cable cycle (disconnect, then reconnect to vehicle) is required before charging can start or resume.	No
CP_a145_modemAppLoadFailedNA	The Power Line Communication (PLC) modem application for the Charge Port (CP) electronic control unit (ECU) does not load after a maximum number of automatic retries. DC fast charging will be unavailable at Combined Charging System (CCS) charge stations.	The Power Line Communication (PLC) modem application does not load after multiple consecutive attempts / maximum number of retries.	DC fast charging will be unavailable at Combined Charging System (CCS) charge stations.	No
CP_a142_gbdcScConnFault	A GB (Charging standard used in China) DC Supercharger reports an issue with the connector.	The GB DC Supercharger reports via the communication channel that it has detected an issue with the connector.	GB DC charging does not start or is interrupted.	No
CP_a164_latchRedisengageRequested	The charge port (CP) receives multiple consecutive user requests to disengage the CP latch and still detects a charge cable connected, possibly indicating a condition affecting latch functionality. Using the charge port manual release cable may be required.	The CP detects a charge cable connected after receiving multiple consecutive user requests to disengage the CP latch.	Using the charge port manual release cable may be required to remove the charge cable.	No
CP_a171_bedOutletDoorIrrational	The charge port (CP) detects that the bed outlet door sensor is irrational, resulting in the bed outlets being permanently turned off.	The CP detects the bed outlet door sensor is reporting values outside the nominal range.	The bed outlets will not be functional.	No
CP_a141_chademoAdapterFault	A CHAdeMO adapter communicating over single wire controller area network (SWCAN) reports that it has encountered an issue.	The CHAdeMO adapter reports via SWCAN that it has entered the faulted state.	Charging does not start or is interrupted.	No
CP_a140_superchargerFaulted	A Supercharger post communicating over single wire controller area network (SWCAN) reports that it has encountered an issue.	The Supercharger reports via SWCAN that it has entered the faulted state.	Charging does not start or is interrupted.	No
CP_a139_pilotFaulted	An electric vehicle supply equipment (EVSE) using pulse width modulation (PWM) pilot reports that it has encountered an issue.	The EVSE sets the legacy pilot to the faulted state.	Charging does not start or is interrupted.	No
CP_a138_swcanCommsAcEvseFaulted	AC electric vehicle supply equipment (EVSE) communicating over single wire controller area network (SWCAN) reports that it has encountered an issue.	The EVSE reports via SWCAN that it has entered the faulted state.	Charging does not start or is interrupted.	No

CP_a189_resistivePresenceRationality

The Charge Port (CP) Electronic Control Unit (ECU) is reading irrational values from resistive divider located in the CP door, which may prevent the CP door from opening when pressed.

The values from the resistive divider in the CP door are outside of the expected range.

The CP may not be able to determine the state of the manual door.

No

CP_a185_pncAuthRejection

The charging station reports a payment authorization failure.

Charging may stop and not restart.

No

CP_a162_pilotEdgeDetectionFailedCN

The Charge Port (CP) Electronic Control Unit (ECU) is unable to detect the control pilot signal due to an internal condition on the CP ECU. AC charging may be unavailable.

The CP ECU is unable to receive the expected control pilot signal waveform due to an internal condition on the CP ECU.

AC charging may not be operational on the next attempt. DC fast charging should remain functional.

No

CP_a161_badPilotDiodeDetectedCN

The charge port (CP) electronic control unit (ECU) detects that the control pilot voltage is not within its nominal range indicating a possible issue with the ECU.

The CP ECU detects that the voltage of the control pilot never goes below -10V.

AC charging may not be operational on the next attempt. DC fast charging should remain functional.

No

CP_w018_fiveVuv

The charge port (CP) electronic control unit (ECU) detects an under voltage condition on the internal 5V power supply.

The internal 5V power supply voltage measured by the CP ECU is below 4.5V.

The charge port may not function as expected.

No

CP_a156_gbdcPrechargingConcern

The vehicle controller detects that precharging the high voltage (HV) DC bus may be unsuccessful, which may lead to the inability to close the HV contactors and a complete loss of vehicle power. Charging vehicles with GB (charging standard used in China) charge ports requires opening and closing the HV contactors.

The vehicle controller detects that precharging the HV DC bus may be unsuccessful.

If GB DC charging is attempted, the charge session may fail, the HV contactors may not close again, and there may be a complete loss of LV power.

No

CP_a155_hallPresenceRationality

The charge port (CP) electronic control unit (ECU) is reading irrational values from the CP door hall effect sensor located in the CP door, which may prevent the CP door from opening when pressed.

The CP ECU detects irrational values from the hall effect sensor in the CP door that are outside of the expected range.

The CP door may not open when it is pressed.

No

CP_a154_acChargingStoppedOT

The charge port inlet pin temperature has reached an unacceptable level (greatly exceeds normal operating range), causing AC charging to stop.

The charge port inlet pin temperature reaches a level where it is unacceptable to continue AC charging (temperature detected greatly exceeds normal operating range).

AC charging will be interrupted and remain unavailable until a charge cable cycle occurs (disconnect and reconnect) and the charge port inlet pin temperature returns to normal operating range.

No

CP_a153_thermalAcLimitActive

The charge port inlet pin temperature has reached a level where limiting AC charge current is necessary until temperature returns to normal operating range.

The charge port inlet pin temperature reaches an unexpected level (temperature detected exceeds normal operating range).

AC charge current is limited.

No

CP_a152_pilotEdgeDetectionFailed

The Charge Port (CP) Electronic Control Unit (ECU) is unable to detect the control pilot signal due to an internal condition on the CP ECU. Charging may be unavailable.

The CP ECU is unable to receive the expected control pilot signal waveform due to an internal condition on the CP ECU.

Charging may be unavailable during the next charge attempt.

No

CP_a151_badPilotDiodeDetected

The charge port (CP) electronic control unit (ECU) detects the control pilot voltage is outside of the nominal range while using Tesla electric vehicle supply equipment (EVSE), indicating an internal condition on the CP ECU.

The CP ECU detects the control pilot voltage did not go below -10V while using Tesla EVSE.

AC charging may be unavailable during the next charging session. No expected impact on Supercharging functionality.

No

CP_a146_ccsEvseMalfunction

The Combined Charging System (CCS) charge station reports that it has experienced an unrecoverable error. Charging may not start or may be interrupted, with a charge cable cycle (disconnect, then reconnect to vehicle) required before charging can start or resume.

The Combined Charging System (CCS) charge station sends a message indicating it has experienced an unrecoverable error.

Charging may not start or may be unexpectedly interrupted. A charge cable cycle (disconnect, then reconnect to vehicle) is required before charging can start or resume.

No

CP_a145_modemAppLoadFailedNA

The Power Line Communication (PLC) modem application for the Charge Port (CP) electronic control unit (ECU) does not load after a maximum number of automatic retries. DC fast charging will be unavailable at Combined Charging System (CCS) charge stations.

The Power Line Communication (PLC) modem application does not load after multiple consecutive attempts / maximum number of retries.

DC fast charging will be unavailable at Combined Charging System (CCS) charge stations.

No

CP_a142_gbdcScConnFault

A GB (Charging standard used in China) DC Supercharger reports an issue with the connector.

The GB DC Supercharger reports via the communication channel that it has detected an issue with the connector.

GB DC charging does not start or is interrupted.

No

CP_a164_latchRedisengageRequested

The charge port (CP) receives multiple consecutive user requests to disengage the CP latch and still detects a charge cable connected, possibly indicating a condition affecting latch functionality. Using the charge port manual release cable may be required.

The CP detects a charge cable connected after receiving multiple consecutive user requests to disengage the CP latch.

Using the charge port manual release cable may be required to remove the charge cable.

No

CP_a171_bedOutletDoorIrrational

The charge port (CP) detects that the bed outlet door sensor is irrational, resulting in the bed outlets being permanently turned off.

The CP detects the bed outlet door sensor is reporting values outside the nominal range.

The bed outlets will not be functional.

No

CP_a141_chademoAdapterFault

A CHAdeMO adapter communicating over single wire controller area network (SWCAN) reports that it has encountered an issue.

The CHAdeMO adapter reports via SWCAN that it has entered the faulted state.

Charging does not start or is interrupted.

No

CP_a140_superchargerFaulted

A Supercharger post communicating over single wire controller area network (SWCAN) reports that it has encountered an issue.

The Supercharger reports via SWCAN that it has entered the faulted state.

Charging does not start or is interrupted.

No

CP_a139_pilotFaulted

An electric vehicle supply equipment (EVSE) using pulse width modulation (PWM) pilot reports that it has encountered an issue.

The EVSE sets the legacy pilot to the faulted state.

Charging does not start or is interrupted.

No

CP_a138_swcanCommsAcEvseFaulted

AC electric vehicle supply equipment (EVSE) communicating over single wire controller area network (SWCAN) reports that it has encountered an issue.

The EVSE reports via SWCAN that it has entered the faulted state.

Charging does not start or is interrupted.

No

Alerts

Alerts