MyTeslaMate App

Signal Name	Description	Condition	Impact
DIR_a103_lowFlow	Drive Inverter Warning: Low flow rate of fluid.	Insufficient cooling to the drive inverter is detected	Drive unit enters unit limp mode (see DI_a126_limpMode)
DIR_a078_adcRefLow	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an analog-to-digital converter (ADC) channel reference below the lower rational bound.	Any ADC channel reference is below the minimum rational value.	The vehicle is blocked from shifting out of Park.
DIR_a116_highSpeedWearCounter	Drive Inverter Warning: High Speed Wear Counter Exceeded.	Number of qualified high speed events above allowed threshold	Silent alert to track mechanical wear
DIR_a077_lvSupplyUV	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery power supply undervoltage event.	LV supply voltage to DI (refer to lvSupply) is disconnected or drops below lower voltage threshold	Drive unit enters unit limp mode (see DI_a126_limpMode)
DIR_a076_lvSupplyOV	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery overvoltage event.	LV supply voltage to DI exceeds the set upper voltage limit.	No immediate impact. Could damage drive inverter LV hardware if LV is continuously too high.
DIR_a075_motorSpeedMismatch	The motor speed measured by the Drive Unit resolver does not match the Anti-lock Braking System (ABS) wheel speed sensors.	The motor speed measured by the Drive Unit resolver does not match the ABS wheel speed sensors. There may be a condition affecting the functionality of the Drive Unit or wiring.	The Drive Unit may not function as expected, including a reduction in vehicle power. The vehicle's drive cycle may not function as expected, or at all.
DIR_a098_intTimeTooLong	The Drive Inverter (DIx) has detected a DIx thread executing later than expected. The DIx CPU may be diverting resources towards other tasks.	The DIx has detected a DIx thread executing later than expected. The DIx CPU may be diverting resources towards other tasks.	This alert is primarily informational and is used for logging purposes. No expected impact on vehicle functionality.
DIR_a097_eepromError	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an electrically erasable programmable read-only memory (EEPROM) read/write access error. Check for other alerts that may be set as a result.	There are read/write issues to EEPROM.	The DI is not able to store any record in EEPROM where the error is located, which impacts functionality on the next boot up.
DIR_a096_memoryError	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a memory check error.	The bootloader cyclic redundancy check (CRC) or application CRC is not expected, or the RAM constants do not match with initialization segment in flash.	The DI processor may reset, and other functionality may be impacted due to memory corruption.
DIR_a092_bmsMIA	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the high voltage (HV) battery management system (BMS) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the expected CAN communication from the BMS, and considers it irrational or MIA.	The DI ECU is unable to monitor the state of the BMS.
DIR_a091_espMIA	The drive interface (DI) electronic control unit (ECU) detects that the electronic stability program (ESP, also known as traction control) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the expected CAN communication from the ESP, and considers it irrational or MIA.	The DI ECU is unable to monitor the state of the ESP.
DIR_a090_pmMIA	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the pedal monitor (PM) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the expected CAN communication from the PM, and considers it irrational or MIA.	The DI ECU is unable to monitor the state of the PM.
DIR_a087_gtwMIA	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the gateway (GTW) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the expected CAN communication from the GTW, and considers it irrational or MIA.	The DI ECU is unable to monitor the state of the GTW.
DIR_a086_activeDischargeOn	Drive Inverter Warning: Active discharge is on but bus voltage remains high.	Bus voltage is high while active discharge is ON	Potentially exposed high voltage
DIR_a079_adcRefHigh	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an analog-to-digital converter (ADC) channel reference above the upper rational bound.	Any ADC channel reference is above the maximum rational value.	The vehicle is blocked from shifting out of Park.
DIR_a115_exceptionDataAbort2	The Drive Interface (DI) processor has detected an internal exception.	The DI core detects an abort data exception. Alert log signal data provides information on the specific condition(s) detected.	This alert is primarily informational and is used for logging purposes.
DIR_a113_noFuncHeatsinkSensor	The three Drive Inverter (DIx) heat sink sensors are not functioning. The DIx heat sink sensors monitor temperature in the motor and fluid port.	The three DIx heat sink sensors are not functioning. The DIx heat sink sensors may have a condition affecting functionality.	Since it cannot detect temperature as expected, DIx may limit power output to an operational level. Drive Unit performance may be impacted.
DIR_a112_noPhaseCurrent	The Drive Inverter (DIx) Electronic Control Unit (ECU) detects no phase current.	The DIx ECU detects no phase current. The phase lugs, stator, rotor, or DIx may have a condition affecting functionality.	Without phase current, DIx cannot produce motor torque to rotate the wheels. The vehicle's drive cycle may not function as expected, or at all.
DIR_a033_phaseAcurrentSensor	The Drive Inverter (DIx) Phase A current sensor is irrational.	The DIx Phase A current sensor is irrational. An irrational current may indicate a high rate of change or current measurement out of sensing bounds. There may be a condition affecting current input and output.	If the alert asserts at the beginning of a drive cycle, DIx may not enable. If the alert asserts during a drive cycle, DIx may be disabled. DIx may not function as expected.
DIR_a041_sdcMIA	Drive Inverter Warning: The Secondary Disconnect Controller (SDC) is not communicating to the Drive Inverter (DI), or there is an interface version mismatch. Service is needed.	The Secondary Disconnect Controller (SDC) is not communicating to the Drive Inverter (DI), or there is a mismatch between their interface version.	The Secondary Disconnect Controller (SDC) may not be monitoring potential drive unit failures.

DIR_a103_lowFlow

Drive Inverter Warning: Low flow rate of fluid.

Insufficient cooling to the drive inverter is detected

Drive unit enters unit limp mode (see DI_a126_limpMode)

DIR_a078_adcRefLow

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an analog-to-digital converter (ADC) channel reference below the lower rational bound.

Any ADC channel reference is below the minimum rational value.

The vehicle is blocked from shifting out of Park.

DIR_a116_highSpeedWearCounter

Drive Inverter Warning: High Speed Wear Counter Exceeded.

Number of qualified high speed events above allowed threshold

Silent alert to track mechanical wear

DIR_a077_lvSupplyUV

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery power supply undervoltage event.

LV supply voltage to DI (refer to lvSupply) is disconnected or drops below lower voltage threshold

Drive unit enters unit limp mode (see DI_a126_limpMode)

DIR_a076_lvSupplyOV

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery overvoltage event.

LV supply voltage to DI exceeds the set upper voltage limit.

No immediate impact. Could damage drive inverter LV hardware if LV is continuously too high.

DIR_a075_motorSpeedMismatch

The motor speed measured by the Drive Unit resolver does not match the Anti-lock Braking System (ABS) wheel speed sensors.

The motor speed measured by the Drive Unit resolver does not match the ABS wheel speed sensors. There may be a condition affecting the functionality of the Drive Unit or wiring.

The Drive Unit may not function as expected, including a reduction in vehicle power. The vehicle's drive cycle may not function as expected, or at all.

DIR_a098_intTimeTooLong

The Drive Inverter (DIx) has detected a DIx thread executing later than expected. The DIx CPU may be diverting resources towards other tasks.

The DIx has detected a DIx thread executing later than expected. The DIx CPU may be diverting resources towards other tasks.

This alert is primarily informational and is used for logging purposes. No expected impact on vehicle functionality.

DIR_a097_eepromError

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an electrically erasable programmable read-only memory (EEPROM) read/write access error. Check for other alerts that may be set as a result.

There are read/write issues to EEPROM.

The DI is not able to store any record in EEPROM where the error is located, which impacts functionality on the next boot up.

DIR_a096_memoryError

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a memory check error.

The bootloader cyclic redundancy check (CRC) or application CRC is not expected, or the RAM constants do not match with initialization segment in flash.

The DI processor may reset, and other functionality may be impacted due to memory corruption.

DIR_a092_bmsMIA

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the high voltage (HV) battery management system (BMS) controller area network (CAN) node is missing (MIA).

The DI ECU is not receiving the expected CAN communication from the BMS, and considers it irrational or MIA.

The DI ECU is unable to monitor the state of the BMS.

DIR_a091_espMIA

The drive interface (DI) electronic control unit (ECU) detects that the electronic stability program (ESP, also known as traction control) controller area network (CAN) node is missing (MIA).

The DI ECU is not receiving the expected CAN communication from the ESP, and considers it irrational or MIA.

The DI ECU is unable to monitor the state of the ESP.

DIR_a090_pmMIA

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the pedal monitor (PM) controller area network (CAN) node is missing (MIA).

The DI ECU is not receiving the expected CAN communication from the PM, and considers it irrational or MIA.

The DI ECU is unable to monitor the state of the PM.

DIR_a087_gtwMIA

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the gateway (GTW) controller area network (CAN) node is missing (MIA).

The DI ECU is not receiving the expected CAN communication from the GTW, and considers it irrational or MIA.

The DI ECU is unable to monitor the state of the GTW.

DIR_a086_activeDischargeOn

Drive Inverter Warning: Active discharge is on but bus voltage remains high.

Bus voltage is high while active discharge is ON

Potentially exposed high voltage

DIR_a079_adcRefHigh

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an analog-to-digital converter (ADC) channel reference above the upper rational bound.

Any ADC channel reference is above the maximum rational value.

The vehicle is blocked from shifting out of Park.

DIR_a115_exceptionDataAbort2

The Drive Interface (DI) processor has detected an internal exception.

The DI core detects an abort data exception. Alert log signal data provides information on the specific condition(s) detected.

This alert is primarily informational and is used for logging purposes.

DIR_a113_noFuncHeatsinkSensor

The three Drive Inverter (DIx) heat sink sensors are not functioning. The DIx heat sink sensors monitor temperature in the motor and fluid port.

The three DIx heat sink sensors are not functioning. The DIx heat sink sensors may have a condition affecting functionality.

Since it cannot detect temperature as expected, DIx may limit power output to an operational level. Drive Unit performance may be impacted.

DIR_a112_noPhaseCurrent

The Drive Inverter (DIx) Electronic Control Unit (ECU) detects no phase current.

The DIx ECU detects no phase current. The phase lugs, stator, rotor, or DIx may have a condition affecting functionality.

Without phase current, DIx cannot produce motor torque to rotate the wheels. The vehicle's drive cycle may not function as expected, or at all.

DIR_a033_phaseAcurrentSensor

The Drive Inverter (DIx) Phase A current sensor is irrational.

The DIx Phase A current sensor is irrational. An irrational current may indicate a high rate of change or current measurement out of sensing bounds. There may be a condition affecting current input and output.

If the alert asserts at the beginning of a drive cycle, DIx may not enable. If the alert asserts during a drive cycle, DIx may be disabled. DIx may not function as expected.

DIR_a041_sdcMIA

Drive Inverter Warning: The Secondary Disconnect Controller (SDC) is not communicating to the Drive Inverter (DI), or there is an interface version mismatch. Service is needed.

The Secondary Disconnect Controller (SDC) is not communicating to the Drive Inverter (DI), or there is a mismatch between their interface version.

The Secondary Disconnect Controller (SDC) may not be monitoring potential drive unit failures.

Alerts

Alerts