MyTeslaMate App

Signal Name	Description	Condition	Impact
PEPS_a139_motorPositionSensorInvalid	One or more steering motor position sensor readings are invalid.	Any motor position sensor is deemed invalid, or readings from valid sensors disagree by more than allowed threshold.	Invalid sensor readings could affect systems reliant on position data.
PEPS_a145_motorPositionSensorUncalibrated	Motor position sensor is not calibrated.	On startup, Electronic Power Steering (EPS) detects motor position sensor calibration is incomplete	Motor torque may not be generated
PEPS_a146_motorUncalibrated	Motor is not calibrated.	On startup, Electronic Power Steering (EPS) detects motor calibration is incomplete	Motor torque may not be generated
PEPS_a147_phaseDisconnectFault	The power steering motor phase disconnect signaled an error.	The phase disconnect detects an error condition (e.g. voltage out of range, communication issue, FET short).	The motor is disqualified and rack control health is degraded.
PEPS_a149_MAQ473GQEFault	The secondary motor position sensor has been deemed invalid.	The motor position sensor experiences an issue affecting configuration and/or communication, or magnetic flags are set.	The motor is disqualified and handwheel feedback health is degraded.
PEPS_a159_currentContinuityFault	Steering motor current continuity is irrational. The sum of the three phase currents is not equal to 0.	Observed current into motor does not match current exiting.	The motor is disqualified and system health is degraded.
PEPS_a160_TLE5501Fault	The primary motor position sensor has been deemed invalid.	The motor position sensor signals have failed a safety check.	The motor is disqualified and rack control health is degraded.
PEPS_a161_largeCurrentOffset	A phase current offset of a steering controller is greater than the expected variance. Steering may not operate as expected.	A phase current offset greater than the expected variance is detected.	Steering may not operate as expected. Controller may be damaged.
PEPS_a169_rackUncalibrated	The Electronic Power Steering (EPS) detects front steering rack calibration data is missing.	On startup, EPS detects front steering rack calibration data is missing	Steering rack control is blocked. Steering performance may be degraded
PEPS_a173_thermalDerating	Steering system may be reducing power and functionality to prevent overheating, due to higher than nominal system temperature detected.	When part of steering system is detected to be close to its overheating limit	Torque output may be reduced, and steering system may have reduced performance
PEPS_a177_pinionAngleSensorFault	The Pinion Angle Sensor did not communicate a valid angle.	Pinion Angle Sensor communication is missing, or invalid	Electronic Power Steering (EPS) system may be limited or unavailable
PEPS_a178_rearSteerReenabled	Rear axle steering has been re-enabled at all speeds.	User request via front touchscreen (UI)	Rear axle steering will operate nominally at all vehicle speeds.
PEPS_a179_rearSteerDisabledByUser	Rear axle steering is disabled at low vehicle speeds, based on user request via front touchscreen (UI). Rear wheels will align at 0 degrees.	Low vehicle speed and user request via front touchscreen (UI)	Rear axle steering will still turn in parallel at higher speeds for vehicle stability, but turning radius will be reduced at lower speeds
PEPS_a116_VCLEFT_MIA	One or more of the messages the vehicle controller receives periodically from the left vehicle controller (VCLEFT) is not received, indicating the VCLEFT may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the VCLEFT within the expected time frame.	Vehicle functions that depend on the VCLEFT may be unavailable or may not function as expected.
PEPS_a115_VCRIGHT1_MIA	One or more of the messages the vehicle controller receives periodically from the right vehicle controller (VCRIGHT1) is not received, indicating the VCRIGHT1 may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the VCRIGHT1 within the expected time frame.	Vehicle functions that depend on the VCRIGHT1 may be unavailable or may not function as expected.
PEPS_a114_ESP_MIA	One or more expected Controller Area Network (CAN) messages from the Electronic Stability Program (ESP) electronic control unit (ECU) was not received. Stability and traction control functions may be unavailable, or their performance may be affected.	An expected CAN message from the Electronic Stability Program (ESP) electronic control unit (ECU) has not been received within the expected timeout, or the message drop rate is too high while the ESP is CAN active.	Stability and traction control functions may be unavailable, or their performance may be affected.
PEPS_a112_EPBL_MIA	One or more of the messages the vehicle controller receives periodically from the left Electronic Park Brake (EPBL) electronic control unit (ECU) is not received, indicating the EPBL ECU may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the EPBL ECU within the expected time frame.	The parking brake may be unavailable or may not function as expected.
PEPS_a111_EPBR_MIA	One or more of the messages the vehicle controller receives periodically from the right Electronic Park Brake (EPBR) electronic control unit (ECU) is not received, indicating the EPBR ECU may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the EPBR ECU within the expected time frame.	The parking brake may be unavailable or may not function as expected.
PEPS_a110_GTW_MIA	One or more expected Controller Area Network (CAN) messages from the vehicle gateway (GTW) was not received. Vehicle functions that depend on CAN messages from the GTW may be unavailable, or their performance may be affected.	An expected CAN message from the vehicle gateway (GTW) has not been received within the expected timeout, or the message drop rate is too high while the GTW is CAN active.	Vehicle functions that depend on CAN messages from the vehicle gateway (GTW) may be unavailable, or their performance may be affected.
PEPS_a109_RCM_MIA	One or more of the messages the vehicle controller receives periodically from the Restraint Control Module (RCM) is not received, indicating the RCM may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the RCM within the expected time frame.	Vehicle functions that depend on the RCM may be unavailable or may not function as expected.

PEPS_a139_motorPositionSensorInvalid

One or more steering motor position sensor readings are invalid.

Any motor position sensor is deemed invalid, or readings from valid sensors disagree by more than allowed threshold.

Invalid sensor readings could affect systems reliant on position data.

PEPS_a145_motorPositionSensorUncalibrated

Motor position sensor is not calibrated.

On startup, Electronic Power Steering (EPS) detects motor position sensor calibration is incomplete

Motor torque may not be generated

PEPS_a146_motorUncalibrated

Motor is not calibrated.

On startup, Electronic Power Steering (EPS) detects motor calibration is incomplete

Motor torque may not be generated

PEPS_a147_phaseDisconnectFault

The power steering motor phase disconnect signaled an error.

The phase disconnect detects an error condition (e.g. voltage out of range, communication issue, FET short).

The motor is disqualified and rack control health is degraded.

PEPS_a149_MAQ473GQEFault

The secondary motor position sensor has been deemed invalid.

The motor position sensor experiences an issue affecting configuration and/or communication, or magnetic flags are set.

The motor is disqualified and handwheel feedback health is degraded.

PEPS_a159_currentContinuityFault

Steering motor current continuity is irrational. The sum of the three phase currents is not equal to 0.

Observed current into motor does not match current exiting.

The motor is disqualified and system health is degraded.

PEPS_a160_TLE5501Fault

The primary motor position sensor has been deemed invalid.

The motor position sensor signals have failed a safety check.

The motor is disqualified and rack control health is degraded.

PEPS_a161_largeCurrentOffset

A phase current offset of a steering controller is greater than the expected variance. Steering may not operate as expected.

A phase current offset greater than the expected variance is detected.

Steering may not operate as expected. Controller may be damaged.

PEPS_a169_rackUncalibrated

The Electronic Power Steering (EPS) detects front steering rack calibration data is missing.

On startup, EPS detects front steering rack calibration data is missing

Steering rack control is blocked. Steering performance may be degraded

PEPS_a173_thermalDerating

Steering system may be reducing power and functionality to prevent overheating, due to higher than nominal system temperature detected.

When part of steering system is detected to be close to its overheating limit

Torque output may be reduced, and steering system may have reduced performance

PEPS_a177_pinionAngleSensorFault

The Pinion Angle Sensor did not communicate a valid angle.

Pinion Angle Sensor communication is missing, or invalid

Electronic Power Steering (EPS) system may be limited or unavailable

PEPS_a178_rearSteerReenabled

Rear axle steering has been re-enabled at all speeds.

User request via front touchscreen (UI)

Rear axle steering will operate nominally at all vehicle speeds.

PEPS_a179_rearSteerDisabledByUser

Rear axle steering is disabled at low vehicle speeds, based on user request via front touchscreen (UI). Rear wheels will align at 0 degrees.

Low vehicle speed and user request via front touchscreen (UI)

Rear axle steering will still turn in parallel at higher speeds for vehicle stability, but turning radius will be reduced at lower speeds

PEPS_a116_VCLEFT_MIA

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

The vehicle controller does not receive one or more of the expected messages from the VCLEFT within the expected time frame.

Vehicle functions that depend on the VCLEFT may be unavailable or may not function as expected.

PEPS_a115_VCRIGHT1_MIA

One or more of the messages the vehicle controller receives periodically from the right vehicle controller (VCRIGHT1) is not received, indicating the VCRIGHT1 may be unavailable (MIA).

The vehicle controller does not receive one or more of the expected messages from the VCRIGHT1 within the expected time frame.

Vehicle functions that depend on the VCRIGHT1 may be unavailable or may not function as expected.

PEPS_a114_ESP_MIA

One or more expected Controller Area Network (CAN) messages from the Electronic Stability Program (ESP) electronic control unit (ECU) was not received. Stability and traction control functions may be unavailable, or their performance may be affected.

An expected CAN message from the Electronic Stability Program (ESP) electronic control unit (ECU) has not been received within the expected timeout, or the message drop rate is too high while the ESP is CAN active.

Stability and traction control functions may be unavailable, or their performance may be affected.

PEPS_a112_EPBL_MIA

One or more of the messages the vehicle controller receives periodically from the left Electronic Park Brake (EPBL) electronic control unit (ECU) is not received, indicating the EPBL ECU may be unavailable (MIA).

The vehicle controller does not receive one or more of the expected messages from the EPBL ECU within the expected time frame.

The parking brake may be unavailable or may not function as expected.

PEPS_a111_EPBR_MIA

One or more of the messages the vehicle controller receives periodically from the right Electronic Park Brake (EPBR) electronic control unit (ECU) is not received, indicating the EPBR ECU may be unavailable (MIA).

The vehicle controller does not receive one or more of the expected messages from the EPBR ECU within the expected time frame.

The parking brake may be unavailable or may not function as expected.

PEPS_a110_GTW_MIA

One or more expected Controller Area Network (CAN) messages from the vehicle gateway (GTW) was not received. Vehicle functions that depend on CAN messages from the GTW may be unavailable, or their performance may be affected.

An expected CAN message from the vehicle gateway (GTW) has not been received within the expected timeout, or the message drop rate is too high while the GTW is CAN active.

Vehicle functions that depend on CAN messages from the vehicle gateway (GTW) may be unavailable, or their performance may be affected.

PEPS_a109_RCM_MIA

One or more of the messages the vehicle controller receives periodically from the Restraint Control Module (RCM) is not received, indicating the RCM may be unavailable (MIA).

The vehicle controller does not receive one or more of the expected messages from the RCM within the expected time frame.

Vehicle functions that depend on the RCM may be unavailable or may not function as expected.

Alerts

Alerts