MyTeslaMate App

Signal Name	Description	Condition	Impact
DIR_a046_statorOT	Drive Inverter Warning: Stator over temperature	Stator temperature exceeds upper temperature threshold	No direct impact. Could damage drive unit if temperature is continuously too high.
DIR_a036_busOV	Drive Inverter Warning: Battery over voltage detected in software	HV bus voltage (refer to busVoltage) exceeds upper voltage theshold (refer to busHighLimit)	Unable to produce torque/power from drive unit
DIR_a031_phaseAcurrentOffset	The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor offset has exceeded the threshold on Phase A.	The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase A. Phase A hardware may need investigation.	This alert is intended for logging purposes. Phase A hardware may need investigation.
DIR_a050_noStatorSensor	Drive Inverter Warning: No Stator sensor available	All stator sensors are giving abnormal measurements	Drive unit enters unit limp mode (see DI_a126_limpMode)
DIR_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.
DIR_a061_heatsinkSensor	Drive Inverter Warning: Heatsink sensor bad	Abnormal temperature measurements from heatsink sensor	Unable to monitor heatsink sensor temperature
DIR_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.
DIR_a058_ambientSensor	Drive Inverter Warning: Ambient sensor bad	Abnormal temperature measurements from ambient sensor	Unable to monitor ambient sensor temperature
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_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.
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_a032_phaseBcurrentOffset	The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor offset has exceeded the threshold on Phase B.	The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase B. Phase B hardware may need investigation.	This alert is intended for logging purposes. Phase B hardware may need investigation.
DIR_a052_dirMIA	The drive interface (DI) electronic control unit (ECU) detects that the rear drive interface (DIR) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the required feedback CAN messages from the DIR.	The DI ECU is unable to monitor the state of the DIR.
DIR_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.
DIR_a064_torqueIntervention	The torque production safety monitor has detected excess torque production and inhibited Drive Inverter (DIx) torque production for the remainder of the drive cycle.	The torque production safety monitor has detected excess torque production and inhibited DIx torque production for the remainder of the drive cycle.	The torque production safety monitor will inhibit torque and excess heat production for the remainder of the drive cycle.
DIR_a063_bbMIA	One or more of the messages the Drive Inverter Rear (DIR) Electronic Control Unit (ECU) receives periodically from the Decoupled Brake Booster (BB) ECU is not received, indicating the BB ECU may be unavailable (MIA).	One or more of the expected messages from the BB ECU is not received.	Drive system may not function as expected.
DIR_a040_difMIA	The drive interface (DI) electronic control unit (ECU) detects that the front drive interface (DIF) controller area network (CAN) node is missing (MIA).	The DI ECU is not receiving the required feedback CAN messages from the DIF.	The DI ECU is unable to monitor the state of the DIF.
DIR_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.
DIR_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.
DIR_a055_trqCrossCheck	The Drive Inverter (DIx) and Pedal Monitor (PM) estimate different amounts of torque production, causing a Cross Check mismatch.	The DIx and PM estimate different amounts of torque production, causing a Cross Check mismatch. There may be a condition affecting DIx's or PM's ability to measure torque.	The vehicle may not accurately measure the level of torque being produced by the Drive Unit.

DIR_a046_statorOT

Drive Inverter Warning: Stator over temperature

Stator temperature exceeds upper temperature threshold

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

DIR_a036_busOV

Drive Inverter Warning: Battery over voltage detected in software

HV bus voltage (refer to busVoltage) exceeds upper voltage theshold (refer to busHighLimit)

Unable to produce torque/power from drive unit

DIR_a031_phaseAcurrentOffset

The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor offset has exceeded the threshold on Phase A.

The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase A. Phase A hardware may need investigation.

This alert is intended for logging purposes. Phase A hardware may need investigation.

DIR_a050_noStatorSensor

Drive Inverter Warning: No Stator sensor available

All stator sensors are giving abnormal measurements

Drive unit enters unit limp mode (see DI_a126_limpMode)

DIR_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.

DIR_a061_heatsinkSensor

Drive Inverter Warning: Heatsink sensor bad

Abnormal temperature measurements from heatsink sensor

Unable to monitor heatsink sensor temperature

DIR_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.

DIR_a058_ambientSensor

Drive Inverter Warning: Ambient sensor bad

Abnormal temperature measurements from ambient sensor

Unable to monitor ambient sensor temperature

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_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.

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_a032_phaseBcurrentOffset

The Drive Inverter (DIx) Electronic Control Unit (ECU) has detected the current sensor offset has exceeded the threshold on Phase B.

The DIx ECU has detected the current sensor offset has exceeded the threshold on Phase B. Phase B hardware may need investigation.

This alert is intended for logging purposes. Phase B hardware may need investigation.

DIR_a052_dirMIA

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

The DI ECU is not receiving the required feedback CAN messages from the DIR.

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

DIR_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.

DIR_a064_torqueIntervention

The torque production safety monitor has detected excess torque production and inhibited Drive Inverter (DIx) torque production for the remainder of the drive cycle.

The torque production safety monitor has detected excess torque production and inhibited DIx torque production for the remainder of the drive cycle.

The torque production safety monitor will inhibit torque and excess heat production for the remainder of the drive cycle.

DIR_a063_bbMIA

One or more of the messages the Drive Inverter Rear (DIR) Electronic Control Unit (ECU) receives periodically from the Decoupled Brake Booster (BB) ECU is not received, indicating the BB ECU may be unavailable (MIA).

One or more of the expected messages from the BB ECU is not received.

Drive system may not function as expected.

DIR_a040_difMIA

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

The DI ECU is not receiving the required feedback CAN messages from the DIF.

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

DIR_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.

DIR_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.

DIR_a055_trqCrossCheck

The Drive Inverter (DIx) and Pedal Monitor (PM) estimate different amounts of torque production, causing a Cross Check mismatch.

The DIx and PM estimate different amounts of torque production, causing a Cross Check mismatch. There may be a condition affecting DIx's or PM's ability to measure torque.

The vehicle may not accurately measure the level of torque being produced by the Drive Unit.

Alerts

Alerts