MyTeslaMate App

Signal Name	Description	Condition	Impact	Important
CP_a056_proxDisconnected	Proximity circuit was opened unexpectedly while charging. Charging may be interrupted.	The charge port (CP) detects that there is no charge cable present while the vehicle is charging.	Charging may be interrupted unexpectedly.	No
CP_a025_ledsOC	The charge port (CP) electronic control unit (ECU) detects an overcurrent condition with the CP status LEDs.	The current to the CP status LEDs is higher than expected.	The CP status LEDs may not turn on or may flicker.	No
CP_a024_ledsUC	The charge port (CP) electronic control unit (ECU) detects an undercurrent condition with the CP status LEDs.	The current to the CP status LEDs is lower than expected.	The CP status LEDs may not turn on or may flicker.	No
CP_a023_gbdcSessionFailed	The charge port (CP) electronic control unit (ECU) detects an error during a charge session with a Guobiao direct current (GB DC) charging station, causing the charge session to be aborted.	The CP ECU detects an error during a GB DC charging session.	GB DC charging may not start or may be interrupted.	No
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.	No
CP_a018_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_a017_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.	No
CP_a016_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.	No
CP_a048_lostCommsUI	Expected user interface (UI) controller area network (CAN) messages are missing. Charge port door may not open when request is made via the user interface (UI) or mobile app.	Charge port (CP) does not receive all expected controller area network (CAN) messages from the user interface (UI).	Charge port (CP) door may not open with user interface (UI) or mobile app controls.	No
CP_a046_lostCommsEVSE	Vehicle unexpectedly lost digital communications with offboard charging equipment. Charging may be interrupted.	Any message required to control a charge session via digital communications goes missing unexpectedly.	Charging may be interrupted unexpectedly.	No
CP_a045_lostCommsVCSEC	The charge port (CP) electronic control unit (ECU) loses communication with the vehicle security controller (VCSEC).	The CP ECU does not receive all of the expected controller area network (CAN) messages from the VCSEC.	The charge port does not unlock.	No
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.	No
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.	No
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.	No
CP_a049_multipleCablesDetected	The charge port (CP) electronic control unit (ECU) detects multiple charge cables at the same time.	The CP ECU detects both AC and DC GB charging cables at the same time.	Charging does not start.	No
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.	No
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.	No
CP_a057_ccs1AdapterBtnPress	The charge port (CP) detected that button was pressed on the charge cable connected to the Combined Charging System (CCS) Combo 1 Adapter.	The charge handle proximity changed to the unlatched state indicating a button press.	The Combo 1 charge cable may become unsecured or damaged.	No
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.	No
CP_a053_proxLatchedNoPilot	The charge port (CP) has detected a missing control pilot signal while a charge cable is connected, which usually indicates the charge station does not have power. Charging may not start, and it may be necessary to try a different charge station.	Proximity is detected with no control pilot signal and no digital communications, and the vehicle is not charging.	Charging may not start.	No

CP_a056_proxDisconnected

Proximity circuit was opened unexpectedly while charging. Charging may be interrupted.

The charge port (CP) detects that there is no charge cable present while the vehicle is charging.

Charging may be interrupted unexpectedly.

No

CP_a025_ledsOC

The charge port (CP) electronic control unit (ECU) detects an overcurrent condition with the CP status LEDs.

The current to the CP status LEDs is higher than expected.

The CP status LEDs may not turn on or may flicker.

No

CP_a024_ledsUC

The charge port (CP) electronic control unit (ECU) detects an undercurrent condition with the CP status LEDs.

The current to the CP status LEDs is lower than expected.

The CP status LEDs may not turn on or may flicker.

No

CP_a023_gbdcSessionFailed

The charge port (CP) electronic control unit (ECU) detects an error during a charge session with a Guobiao direct current (GB DC) charging station, causing the charge session to be aborted.

The CP ECU detects an error during a GB DC charging session.

GB DC charging may not start or may be interrupted.

No

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.

No

CP_a018_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_a017_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.

No

CP_a016_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.

No

CP_a048_lostCommsUI

Expected user interface (UI) controller area network (CAN) messages are missing. Charge port door may not open when request is made via the user interface (UI) or mobile app.

Charge port (CP) does not receive all expected controller area network (CAN) messages from the user interface (UI).

Charge port (CP) door may not open with user interface (UI) or mobile app controls.

No

CP_a046_lostCommsEVSE

Vehicle unexpectedly lost digital communications with offboard charging equipment. Charging may be interrupted.

Any message required to control a charge session via digital communications goes missing unexpectedly.

Charging may be interrupted unexpectedly.

No

CP_a045_lostCommsVCSEC

The charge port (CP) electronic control unit (ECU) loses communication with the vehicle security controller (VCSEC).

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

The charge port does not unlock.

No

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.

No

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.

No

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.

No

CP_a049_multipleCablesDetected

The charge port (CP) electronic control unit (ECU) detects multiple charge cables at the same time.

The CP ECU detects both AC and DC GB charging cables at the same time.

Charging does not start.

No

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.

No

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.

No

CP_a057_ccs1AdapterBtnPress

The charge port (CP) detected that button was pressed on the charge cable connected to the Combined Charging System (CCS) Combo 1 Adapter.

The charge handle proximity changed to the unlatched state indicating a button press.

The Combo 1 charge cable may become unsecured or damaged.

No

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.

No

CP_a053_proxLatchedNoPilot

The charge port (CP) has detected a missing control pilot signal while a charge cable is connected, which usually indicates the charge station does not have power. Charging may not start, and it may be necessary to try a different charge station.

Proximity is detected with no control pilot signal and no digital communications, and the vehicle is not charging.

Charging may not start.

No

Alerts

Alerts