MyTeslaMate App

Signal Name	Description	Condition	Impact
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.
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.
CP_a132_contractAuthTimeout	The charge port (CP) electronic control unit (ECU) detects that the electric vehicle supply equipment (EVSE) is still in an authentication state.	The EVSE spends longer than expected in the authentication state.	Charging does not start.
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.
CP_a131_evseCommTimeout	Communication times out between the charge port (CP) electronic control unit (ECU) and the electric vehicle supply equipment (EVSE).	The EVSE and the CP ECU cannot establish communication within the set timeframe between being connected and starting to charge.	Charging does not start.
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.
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.
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.
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.
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.
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.
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.
CP_w017_fiveVov	The charge port (CP) electronic control unit (ECU) detects an over voltage condition on the internal 5V power supply.	The internal 5V power supply voltage measured by the CP ECU is above 5.5V.	The charge port may not function as expected.
CP_w009_coverOpenAllChgBlocked	The charge port (CP) electronic control unit (ECU) does not sense the presence of the high voltage (HV) charge port cover.	The CP ECU does not detect the HV cover.	Charging does not start.
CP_w016_apsVuv	The charge port (CP) electronic control unit (ECU) detects lower than expected voltage from the low voltage (LV) battery.	The CP ECU detects LV supply less than 8V.	Charging does not start.
CP_w015_apsVov	The charge port (CP) electronic control unit (ECU) detects an over voltage condition on the external low voltage (LV) power supply.	The external LV power supply voltage measured by the CP ECU is above 16.5V.	Charging may not start or may be interrupted. If the voltage is too high, the CP ECU may become damaged.
CP_w012_ledDriver	The charge port (CP) electronic control unit (ECU) detects an issue with the LED driver.	The LED driver reports a fault.	The charge port LED may not display colors properly or at all.
CP_w011_eeprom	The charge port (CP) electronic control unit (ECU) detects an internal memory condition on the electrically erasable programmable read-only memory (EEPROM).	The CP ECU detects an internal EEPROM condition.	Charging may not start or may be interrupted.
CP_w010_pilotRationality	The charge port (CP) electronic control unit (ECU) receives pilot sensor readings that are outside of the expected range.	The CP ECU senses pilot voltage, period, or a duty cycle outside of the expected range that cannot be categorized into a valid pilot state.	Charging does not start.
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.

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.

CP_a185_pncAuthRejection

The charging station reports a payment authorization failure.

Charging may stop and not restart.

CP_a132_contractAuthTimeout

The charge port (CP) electronic control unit (ECU) detects that the electric vehicle supply equipment (EVSE) is still in an authentication state.

The EVSE spends longer than expected in the authentication state.

Charging does not start.

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.

CP_a131_evseCommTimeout

Communication times out between the charge port (CP) electronic control unit (ECU) and the electric vehicle supply equipment (EVSE).

The EVSE and the CP ECU cannot establish communication within the set timeframe between being connected and starting to charge.

Charging does not start.

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.

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.

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.

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.

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.

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.

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.

CP_w017_fiveVov

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

The internal 5V power supply voltage measured by the CP ECU is above 5.5V.

The charge port may not function as expected.

CP_w009_coverOpenAllChgBlocked

The charge port (CP) electronic control unit (ECU) does not sense the presence of the high voltage (HV) charge port cover.

The CP ECU does not detect the HV cover.

Charging does not start.

CP_w016_apsVuv

The charge port (CP) electronic control unit (ECU) detects lower than expected voltage from the low voltage (LV) battery.

The CP ECU detects LV supply less than 8V.

Charging does not start.

CP_w015_apsVov

The charge port (CP) electronic control unit (ECU) detects an over voltage condition on the external low voltage (LV) power supply.

The external LV power supply voltage measured by the CP ECU is above 16.5V.

Charging may not start or may be interrupted. If the voltage is too high, the CP ECU may become damaged.

CP_w012_ledDriver

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

The LED driver reports a fault.

The charge port LED may not display colors properly or at all.

CP_w011_eeprom

The charge port (CP) electronic control unit (ECU) detects an internal memory condition on the electrically erasable programmable read-only memory (EEPROM).

The CP ECU detects an internal EEPROM condition.

Charging may not start or may be interrupted.

CP_w010_pilotRationality

The charge port (CP) electronic control unit (ECU) receives pilot sensor readings that are outside of the expected range.

The CP ECU senses pilot voltage, period, or a duty cycle outside of the expected range that cannot be categorized into a valid pilot state.

Charging does not start.

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.

Alerts

Alerts