MyTeslaMate App

Signal Name	Description	Condition	Impact
SSFA_a098_DIR_MIA	One or more of the messages the vehicle controller receives periodically from the rear drive inverter (DIR) electronic control unit (ECU) is not received, indicating the DIR ECU may be unavailable (MIA).	One or more of the expected messages from the DIR ECU is not received.	Vehicle speed and power may be limited.
SSFA_a088_DIRER_MIA	One or more of the messages the vehicle controller receives periodically from the rear right drive inverter (DIRER) is not received, indicating the DIRER may be unavailable (MIA).	One or more of the expected messages from the DIRER is not received.	Vehicle speed and power may be limited.
SSFA_a087_DIREL_MIA	One or more of the messages the vehicle controller receives periodically from the rear left drive inverter (DIREL) is not received, indicating the DIREL may be unavailable (MIA).	One or more of the expected messages from the DIREL is not received.	Vehicle speed and power may be limited.
SSFA_a072_PEPS_MIA	One or more of the messages the vehicle controller receives periodically from the Primary Electric Power Steering (PEPS) electronic control unit (ECU) is not received, indicating the PEPS ECU may be unavailable (MIA).	One or more of the expected messages from the PEPS ECU is not received.	Power steering may be limited or unavailable.
SEPSM_a139_handwheelUncalibrated	The monitor is missing calibration data for the handwheel.	Uncalibrated handwheel detected	Steering control from this node is disabled
SSFAM_a098_DIR_MIA	One or more of the messages the vehicle controller receives periodically from the rear drive inverter (DIR) electronic control unit (ECU) is not received, indicating the DIR ECU may be unavailable (MIA).	One or more of the expected messages from the DIR ECU is not received.	Vehicle speed and power may be limited.
SSFAM_a088_DIRER_MIA	One or more of the messages the vehicle controller receives periodically from the rear right drive inverter (DIRER) is not received, indicating the DIRER may be unavailable (MIA).	One or more of the expected messages from the DIRER is not received.	Vehicle speed and power may be limited.
SSFAM_a087_DIREL_MIA	One or more of the messages the vehicle controller receives periodically from the rear left drive inverter (DIREL) is not received, indicating the DIREL may be unavailable (MIA).	One or more of the expected messages from the DIREL is not received.	Vehicle speed and power may be limited.
SSFAM_a072_PEPS_MIA	One or more of the messages the vehicle controller receives periodically from the Primary Electric Power Steering (PEPS) electronic control unit (ECU) is not received, indicating the PEPS ECU may be unavailable (MIA).	One or more of the expected messages from the PEPS ECU is not received.	Power steering may be limited or unavailable.
SSFAM_a071_SEPS_MIA	One or more of the messages the vehicle controller receives periodically from the Secondary Electric Power Steering (SEPS) electronic control unit (ECU) is not received, indicating the SEPS ECU may be unavailable (MIA).	One or more of the expected messages from the SEPS ECU is not received.	Power steering may be limited or unavailable.
SSFAM_a070_SSFA_MIA	One or more of the messages the vehicle controller receives periodically from the Secondary Steering Feedback Actuator (SSFA) electronic control unit (ECU) is not received, indicating the SSFA ECU may be unavailable (MIA).	One or more of the expected messages from the SSFA ECU is not received.	Steering wheel feedback functionality may be limited or unavailable.
SSFAM_a069_PSFA_MIA	One or more of the messages the vehicle controller receives periodically from the Primary Steering Feedback Actuator (PSFA) electronic control unit (ECU) is not received, indicating the PSFA ECU may be unavailable (MIA).	One or more of the expected messages from the PSFA ECU is not received.	Steering wheel feedback functionality may be limited or unavailable.
SSFAM_a063_SwitchFault	A condition affecting switch functionality has been detected.	A condition is detected affecting switch functionality. Alert log signal data should provide more information on the switch affected and specific condition.	The switch may not function or may not function as expected.
SSFAM_a059_inputResistanceHigh	A large voltage drop is detected in the input power to the vehicle controller, indicating the resistance on the input power feed to the vehicle controller is higher than expected.	Estimated resistance on the input power feed to the vehicle controller is higher than expected.	The vehicle controller may be unavailable due to lack of adequate input power, limiting vehicle functionality or making the vehicle inoperable, with at least one other alert specific to that condition present.
SSFAM_a054_APP_MIA	One or more of the expected controller area network (CAN) messages from the Autopilot Primary (APP) were not received.	A message the local ECU expects to receive from the APP ECU is not received within the expected timeout, or the drop rate is too high while the APP is CAN active.	Autopilot does not operate as expected.
SSFAM_a015_NVMMError	An issue is indicated from the non-volatile memory manager.	Non-volatile memory misconfiguration or underlying flash/filesystem error.	Non-volatile memory records may be incorrect or missing.
SEPS_a299_shortTravelRack	The front axle steering rack is detected to be the short travel version, and should be replaced at earliest convenience with the long travel front axle steering rack instead.	The short travel variant of the front axle steering rack is detected installed on the vehicle.	Turning radius will be reduced.
SEPS_a298_rackSlipWarning	During the previous drive cycle, rack angle sensors detected deviations that may indicate a slip in the rack mechanism.	A continuously performed rack position check, the rack angle sensor median vote check, during the previous drive cycle returned a result indicating a possible slip in the rack mechanism.	Reported rack position and actual rack position may not match.
SEPS_a297_rackPreloadAbort	The rack moved unexpectedly during preload for calibration or position detection.	Rack sensors report rack movement of more than 0.5mm during a single preload cycle.	Calibration or position detection cannot complete successfully.
SEPS_a296_calibrationVersion	Calibration in use does not match firmware expectation.	Saved calibration does not match firmware expectation	System may block steering if position can not be determined

SSFA_a098_DIR_MIA

One or more of the messages the vehicle controller receives periodically from the rear drive inverter (DIR) electronic control unit (ECU) is not received, indicating the DIR ECU may be unavailable (MIA).

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

Vehicle speed and power may be limited.

SSFA_a088_DIRER_MIA

One or more of the messages the vehicle controller receives periodically from the rear right drive inverter (DIRER) is not received, indicating the DIRER may be unavailable (MIA).

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

Vehicle speed and power may be limited.

SSFA_a087_DIREL_MIA

One or more of the messages the vehicle controller receives periodically from the rear left drive inverter (DIREL) is not received, indicating the DIREL may be unavailable (MIA).

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

Vehicle speed and power may be limited.

SSFA_a072_PEPS_MIA

One or more of the messages the vehicle controller receives periodically from the Primary Electric Power Steering (PEPS) electronic control unit (ECU) is not received, indicating the PEPS ECU may be unavailable (MIA).

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

Power steering may be limited or unavailable.

SEPSM_a139_handwheelUncalibrated

The monitor is missing calibration data for the handwheel.

Uncalibrated handwheel detected

Steering control from this node is disabled

SSFAM_a098_DIR_MIA

One or more of the messages the vehicle controller receives periodically from the rear drive inverter (DIR) electronic control unit (ECU) is not received, indicating the DIR ECU may be unavailable (MIA).

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

Vehicle speed and power may be limited.

SSFAM_a088_DIRER_MIA

One or more of the messages the vehicle controller receives periodically from the rear right drive inverter (DIRER) is not received, indicating the DIRER may be unavailable (MIA).

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

Vehicle speed and power may be limited.

SSFAM_a087_DIREL_MIA

One or more of the messages the vehicle controller receives periodically from the rear left drive inverter (DIREL) is not received, indicating the DIREL may be unavailable (MIA).

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

Vehicle speed and power may be limited.

SSFAM_a072_PEPS_MIA

One or more of the messages the vehicle controller receives periodically from the Primary Electric Power Steering (PEPS) electronic control unit (ECU) is not received, indicating the PEPS ECU may be unavailable (MIA).

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

Power steering may be limited or unavailable.

SSFAM_a071_SEPS_MIA

One or more of the messages the vehicle controller receives periodically from the Secondary Electric Power Steering (SEPS) electronic control unit (ECU) is not received, indicating the SEPS ECU may be unavailable (MIA).

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

Power steering may be limited or unavailable.

SSFAM_a070_SSFA_MIA

One or more of the messages the vehicle controller receives periodically from the Secondary Steering Feedback Actuator (SSFA) electronic control unit (ECU) is not received, indicating the SSFA ECU may be unavailable (MIA).

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

Steering wheel feedback functionality may be limited or unavailable.

SSFAM_a069_PSFA_MIA

One or more of the messages the vehicle controller receives periodically from the Primary Steering Feedback Actuator (PSFA) electronic control unit (ECU) is not received, indicating the PSFA ECU may be unavailable (MIA).

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

Steering wheel feedback functionality may be limited or unavailable.

SSFAM_a063_SwitchFault

A condition affecting switch functionality has been detected.

A condition is detected affecting switch functionality. Alert log signal data should provide more information on the switch affected and specific condition.

The switch may not function or may not function as expected.

SSFAM_a059_inputResistanceHigh

A large voltage drop is detected in the input power to the vehicle controller, indicating the resistance on the input power feed to the vehicle controller is higher than expected.

Estimated resistance on the input power feed to the vehicle controller is higher than expected.

The vehicle controller may be unavailable due to lack of adequate input power, limiting vehicle functionality or making the vehicle inoperable, with at least one other alert specific to that condition present.

SSFAM_a054_APP_MIA

One or more of the expected controller area network (CAN) messages from the Autopilot Primary (APP) were not received.

A message the local ECU expects to receive from the APP ECU is not received within the expected timeout, or the drop rate is too high while the APP is CAN active.

Autopilot does not operate as expected.

SSFAM_a015_NVMMError

An issue is indicated from the non-volatile memory manager.

Non-volatile memory misconfiguration or underlying flash/filesystem error.

Non-volatile memory records may be incorrect or missing.

SEPS_a299_shortTravelRack

The front axle steering rack is detected to be the short travel version, and should be replaced at earliest convenience with the long travel front axle steering rack instead.

The short travel variant of the front axle steering rack is detected installed on the vehicle.

Turning radius will be reduced.

SEPS_a298_rackSlipWarning

During the previous drive cycle, rack angle sensors detected deviations that may indicate a slip in the rack mechanism.

A continuously performed rack position check, the rack angle sensor median vote check, during the previous drive cycle returned a result indicating a possible slip in the rack mechanism.

Reported rack position and actual rack position may not match.

SEPS_a297_rackPreloadAbort

The rack moved unexpectedly during preload for calibration or position detection.

Rack sensors report rack movement of more than 0.5mm during a single preload cycle.

Calibration or position detection cannot complete successfully.

SEPS_a296_calibrationVersion

Calibration in use does not match firmware expectation.

Saved calibration does not match firmware expectation

System may block steering if position can not be determined

Alerts

Alerts