MyTeslaMate App

Signal Name	Description	Condition	Impact
DIREL_a073_motorSpeed	The Drive Unit resolver (motor speed sensor) has detected the motor exceeding typical speed.	The Drive Unit resolver has detected the motor exceeding typical speed. The rotor or rotor shaft may have a condition affecting functionality.	The motor is exceeding typical speed. The motor and Drive Unit may not function as expected.
DIREL_a069_rotorTempLimit	The rotor's temperature is too hot, limiting Drive Inverter (DIx) motor torque production.	The rotor's temperature is too hot, limiting DIx motor torque production. There may be a condition affecting DIx or the motor.	The DIx motor may not produce torque as expected. The Drive Unit may not operate as expected.
DIREL_a072_gateDriveFaultCounter	The phase gate drive has detected four fault related signals from the induction motor or ten from the magnet motor.	The phase gate drive has detected four fault related signals from the induction motor or ten from the magnet motor. The induction motor or magnet motor may have a condition affecting functionality.	The phase gate drive fault counter may block any power stage from enabling. The drive unit may not function as expected.
DIREL_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.
DIREL_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.
DIREL_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.
DIREL_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.
DIREL_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.
DIREL_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
DIREL_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.
DIREL_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.
DIREL_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)
DIREL_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.
DIREL_a062_systemLimpMode	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a condition that requires it to trigger system limp mode.	The DI ECU detects abnormal operation in the powertrain system. Alert log signal data provides information on the specific condition(s) detected.	The performance (torque and power of the drive system) is severely limited.
DIREL_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.
DIREL_a061_heatsinkSensor	Drive Inverter Warning: Heatsink sensor bad.	Abnormal temperature measurements from heatsink sensor	Unable to monitor heatsink sensor temperature
DIREL_a060_heatsinkUT	Drive Inverter Warning: Heatsink under temperature.	Heatsink temperature (refer to heatsinkTemp) drops below lower temperature threshold	No direct impact. Could damage drive inverter if temperature is continuously too low.
DIREL_a059_heatsinkOT	Drive Inverter Warning: Heatsink over temperature.	Heatsink temperature (refer to heatsinkTemp) exceeds upper temperature threshold	No direct impact. Could damage drive inverter if temperature is continuously too high.
DIREL_a058_ambientSensor	Drive Inverter Warning: Ambient sensor bad.	Abnormal temperature measurements from ambient sensor	Unable to monitor ambient sensor temperature
DIREL_a057_ambientUT	Drive Inverter Warning: Ambient under temperature.	Ambient temperature (refer to pcbTemp) drops below lower temperature threshold	No direct impact. Could damage drive inverter if temperature is continuously too low.

DIREL_a073_motorSpeed

The Drive Unit resolver (motor speed sensor) has detected the motor exceeding typical speed.

The Drive Unit resolver has detected the motor exceeding typical speed. The rotor or rotor shaft may have a condition affecting functionality.

The motor is exceeding typical speed. The motor and Drive Unit may not function as expected.

DIREL_a069_rotorTempLimit

The rotor's temperature is too hot, limiting Drive Inverter (DIx) motor torque production.

The rotor's temperature is too hot, limiting DIx motor torque production. There may be a condition affecting DIx or the motor.

The DIx motor may not produce torque as expected. The Drive Unit may not operate as expected.

DIREL_a072_gateDriveFaultCounter

The phase gate drive has detected four fault related signals from the induction motor or ten from the magnet motor.

The phase gate drive has detected four fault related signals from the induction motor or ten from the magnet motor. The induction motor or magnet motor may have a condition affecting functionality.

The phase gate drive fault counter may block any power stage from enabling. The drive unit may not function as expected.

DIREL_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.

DIREL_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.

DIREL_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.

DIREL_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.

DIREL_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.

DIREL_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

DIREL_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.

DIREL_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.

DIREL_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)

DIREL_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.

DIREL_a062_systemLimpMode

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a condition that requires it to trigger system limp mode.

The DI ECU detects abnormal operation in the powertrain system. Alert log signal data provides information on the specific condition(s) detected.

The performance (torque and power of the drive system) is severely limited.

DIREL_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.

DIREL_a061_heatsinkSensor

Drive Inverter Warning: Heatsink sensor bad.

Abnormal temperature measurements from heatsink sensor

Unable to monitor heatsink sensor temperature

DIREL_a060_heatsinkUT

Drive Inverter Warning: Heatsink under temperature.

Heatsink temperature (refer to heatsinkTemp) drops below lower temperature threshold

No direct impact. Could damage drive inverter if temperature is continuously too low.

DIREL_a059_heatsinkOT

Drive Inverter Warning: Heatsink over temperature.

Heatsink temperature (refer to heatsinkTemp) exceeds upper temperature threshold

No direct impact. Could damage drive inverter if temperature is continuously too high.

DIREL_a058_ambientSensor

Drive Inverter Warning: Ambient sensor bad.

Abnormal temperature measurements from ambient sensor

Unable to monitor ambient sensor temperature

DIREL_a057_ambientUT

Drive Inverter Warning: Ambient under temperature.

Ambient temperature (refer to pcbTemp) drops below lower temperature threshold

No direct impact. Could damage drive inverter if temperature is continuously too low.

Alerts

Alerts