MyTeslaMate App

Signal Name	Description	Condition	Impact
DIR_a161_epas3pMIA	The drive interface (DI) electronic control unit (ECU) detects that the electronic power assisted steering, gen 3 (EPAS3) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the expected CAN communication from the EPAS3, and considers it irrational or MIA.	The DI ECU is unable to monitor the state of the EPAS3.
DIR_a160_busVoltageAnomaly	The High Voltage (HV) bus has detected a voltage anomaly in the HV battery pack. The Drive Inverter (DIx) may not operate as expected.	The HV bus has measured a voltage anomaly in the HV battery pack. DIx may not operate as expected.	DIx may not operate as expected. Drive torque may be restricted.
DIR_a158_ibstMIA	The drive interface (DI) electronic control unit (ECU) detects that the iBooster (IBST, or brake assist) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the expected CAN communication from the IBST, and considers it irrational or MIA.	The DI ECU is unable to monitor the state of the IBST.
DIR_a157_rcmMIA	The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects that the restraints control module (RCM) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the expected CAN communication from the RCM, and considers it irrational or MIA.	The DI ECU is unable to monitor the state of the RCM.
DIR_a155_vcsuperMIA	The drive inverter (DIx) electronic control unit (ECU) detects that the Supermanifold Vehicle Controller (VCSUPER) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the expected CAN communication from the VCSUPER, and considers it irrational or MIA.	The DI ECU is unable to monitor the state of the VCSUPER.
DIR_a155_vcfrontMIA	The drive interface (DI) electronic control unit (ECU) detects that the front vehicle controller (VCFRONT) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the expected CAN communication from the VCFRONT, and considers it irrational or MIA.	The DI ECU is unable to monitor the state of the VCFRONT.
DIR_a154_resolver	The Drive Unit resolver (motor speed sensor) is not operating as expected. The resolver may have a condition affecting functionality.	The Drive Unit resolver is not operating as expected. The resolver may have a condition affecting functionality.	The resolver is not operating as expected. The DIx invertor control board may be unable to correctly detect the angle and speed of the rotor.
DIR_a123_lossMotorControl	Drive Inverter Warning: Loss of motor control	Motors are not responding to DI commands	Unable to produce torque/power from drive unit
DIR_a153_oilPumpDiagnostics	The Drive Inverter (DIx) has detected unexpected oil pressure from the oil pump.	DIx has detected unexpected oil pressure from the oil pump. The oil pump may have a condition affecting functionality.	Drive Unit thermal estimation and limits may be impacted and not function as expected. Torque production could be limited.
DIR_a152_linError	The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected an error communicating with the Local Interconnect Network (LIN).	The DIx ECU has detected an error communicating with LIN. The DIx LIN node(s) or LIN signal-carrying wire may have a condition affecting functionality.	DIx and the oil pump communicate through LIN. DIx may not communicate with the oil pump as expected.
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_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_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_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.
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_a111_badPhaseSensorCalib	The Drive Inverter (DIx) Electrically Erasable Programmable Read-Only Memory (EEPROM) has reported phase sensor calibration is outside valid range.	The DIx EEPROM has reported phase sensor calibration is outside valid range.	This alert is primarily for logging purposes and appears in conjunction with other alerts.

DIR_a161_epas3pMIA

The drive interface (DI) electronic control unit (ECU) detects that the electronic power assisted steering, gen 3 (EPAS3) controller area network (CAN) node is missing (MIA).

The DI ECU is not receiving the expected CAN communication from the EPAS3, and considers it irrational or MIA.

The DI ECU is unable to monitor the state of the EPAS3.

DIR_a160_busVoltageAnomaly

The High Voltage (HV) bus has detected a voltage anomaly in the HV battery pack. The Drive Inverter (DIx) may not operate as expected.

The HV bus has measured a voltage anomaly in the HV battery pack. DIx may not operate as expected.

DIx may not operate as expected. Drive torque may be restricted.

DIR_a158_ibstMIA

The drive interface (DI) electronic control unit (ECU) detects that the iBooster (IBST, or brake assist) controller area network (CAN) node is missing (MIA).

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

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

DIR_a157_rcmMIA

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

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

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

DIR_a155_vcsuperMIA

The drive inverter (DIx) electronic control unit (ECU) detects that the Supermanifold Vehicle Controller (VCSUPER) controller area network (CAN) node is missing (MIA).

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

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

DIR_a155_vcfrontMIA

The drive interface (DI) electronic control unit (ECU) detects that the front vehicle controller (VCFRONT) controller area network (CAN) node is missing (MIA).

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

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

DIR_a154_resolver

The Drive Unit resolver (motor speed sensor) is not operating as expected. The resolver may have a condition affecting functionality.

The Drive Unit resolver is not operating as expected. The resolver may have a condition affecting functionality.

The resolver is not operating as expected. The DIx invertor control board may be unable to correctly detect the angle and speed of the rotor.

DIR_a123_lossMotorControl

Drive Inverter Warning: Loss of motor control

Motors are not responding to DI commands

Unable to produce torque/power from drive unit

DIR_a153_oilPumpDiagnostics

The Drive Inverter (DIx) has detected unexpected oil pressure from the oil pump.

DIx has detected unexpected oil pressure from the oil pump. The oil pump may have a condition affecting functionality.

Drive Unit thermal estimation and limits may be impacted and not function as expected. Torque production could be limited.

DIR_a152_linError

The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected an error communicating with the Local Interconnect Network (LIN).

The DIx ECU has detected an error communicating with LIN. The DIx LIN node(s) or LIN signal-carrying wire may have a condition affecting functionality.

DIx and the oil pump communicate through LIN. DIx may not communicate with the oil pump as expected.

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_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_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_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.

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_a111_badPhaseSensorCalib

The Drive Inverter (DIx) Electrically Erasable Programmable Read-Only Memory (EEPROM) has reported phase sensor calibration is outside valid range.

The DIx EEPROM has reported phase sensor calibration is outside valid range.

This alert is primarily for logging purposes and appears in conjunction with other alerts.

Alerts

Alerts