MyTeslaMate App

Signal Name	Description	Condition	Impact	Important
EPAS3P_a106_vcFrontTempMia	VCFRONT_sensors message not received	VCFRONT_sensors message is not received	Leads to Loss of EPS at init	No
EPAS3P_a117_ecuStatCrcError	The Electronic Power Assist Steering (EPAS) electronic control unit (ECU) receives invalid controller area network (CAN) messages from the car computer on the CAN bus.	The Electronic Power Assist Steering (EPAS) ECU receives invalid CAN messages from the car computer on the CAN bus.	Steering assist may be reduced or may not function as expected.	No
EPAS3P_a120_pvtEcuStatCntError	The electric power assist steering (EPAS) internal private bus is receiving an unexpected status counter value, resulting in the chassis bus electric power assist steering (EPAS3S) Electronic Control Unit (ECU) to lose functionality.	The status counter does not increment as expected.	The power steering function is operational, but steering assist will likely be reduced. A customer facing alert describing a reduced level of assist for power steering may be present. Autopilot may be disabled in some cases.	No
EPAS3P_a109_uiTuneReqCsError	Invalid UI_chassisControlChecksum value received	Unexpected UI_chassisControlChecksum value received	Reduced steering assist	No
EPAS3P_a110_sasMia	SCCM_steeringAngleSensor message not received	SCCM_steeringAngleSensor message is not received by EPAS	Reduced steering assist and SASQF = UNDEFINABLE_ACCURACY	No
EPAS3P_a112_sasCsError	Invalid SCCM_steeringAngleSensorCrc value received	Unexpected SCCM_steeringAngleSensorCrc value received by EPAS	Reduced steering assist and SASQF = UNDEFINABLE_ACCURACY	No
EPAS3P_a113_sasStatusError	Invalid SCCM_steeringAngleSensorStatus value received	Invalid SCCM_steeringAngleSensorStatus value received by EPAS	Reduced steering assist and SASQF = UNDEFINABLE_ACCURACY	No
EPAS3P_a114_gtwConfigMia	GTW_carConfig message not received	GTW_carConfig message is not received by EPAS	Reduced steering assist	No
EPAS3P_a115_ecuStatMia	EPAS3P/S_status message not received	EPAS3P/S_status message is not received by EPAS	Incorrect EPS status on bus	No
EPAS3P_a116_ecuStatCntError	Invalid EPAS3P/S_statusCounter value received	EPAS3P/S_statusCounter is not incrementing correctly	Incorrect EPS status on bus	No
EPAS3P_a118_privateBusOff	Internal private bus off	CAN transmit error counter is above 255	Incorrect EPS status on bus	No
EPAS3P_a119_pvtEcuStatMia	EPAS3P/S_status message not received on internal private bus	EPAS3P/S_status message is not received on internal private bus	Incorrect EPS status on bus	No
EPAS3P_a121_pvtEcuStatCrcError	Invalid EPAS3P/S_statusCrc value received on internal private bus	Unexpected EPAS3P/S_statusCrc value received on internal private bus	Incorrect EPS status on bus	No
EPAS3P_a122_olpActive	Overload protection active	Due to sustained torque, output torque is limited	Reduced steering assist and EAC inhibited	No
EPAS3P_a123_combEcu2StatFail	EPAS3S_status message not received on internal private bus nor vehicle bus	EPAS3S_status message not received on private bus nor vehicle bus	Reduced steering assist and EAC inhibited	No
EPAS3P_a124_tempSensStuckInRange	ECU temperature sensor signal stuck in range	ECU temperature sensor signal stuck in range	Reduced steering assist	No
EPAS3P_a125_trqSensTrimOutRange	Torque sensor zero point calibration out of range	Motor Angle trim service not performed or incorrect value stored	Reduced steering assist, EAC inhibited, SASQF = UNDEFINABLE_ACCURACY	No
EPAS3P_a138_difMia	The primary Electric Power Assist Steering (EPAS3P) electronic control unit (ECU) is not receiving the expected messages from the front drive inverter (DIF) ECU on the Party controller area network (CAN) bus.	The EPAS3P ECU does not receive the expected messages from the DIF ECU on the Party CAN bus.	Steering assist may be reduced or may not function as expected.	No
EPAS3P_a139_difCntError	The primary Electronic Power Assist Steering (EPAS3P) electronic control unit (ECU) receives invalid controller area network (CAN) messages from the front drive inverter (DIF) ECU on the Party CAN bus.	The EPAS3P ECU receives invalid CAN messages from the DIF ECU on the Party CAN bus.	Steering assist may be reduced or may not function as expected.	No
EPAS3P_a140_difCsError	The primary Electronic Power Assist Steering (EPAS3P) electronic control unit (ECU) receives invalid controller area network (CAN) messages from the front drive inverter (DIF) ECU on the Party CAN bus.	The EPAS3P ECU receives invalid CAN messages from the DIF ECU on the Party CAN bus.	Steering assist may be reduced or may not function as expected.	No

EPAS3P_a106_vcFrontTempMia

VCFRONT_sensors message not received

VCFRONT_sensors message is not received

Leads to Loss of EPS at init

No

EPAS3P_a117_ecuStatCrcError

The Electronic Power Assist Steering (EPAS) electronic control unit (ECU) receives invalid controller area network (CAN) messages from the car computer on the CAN bus.

The Electronic Power Assist Steering (EPAS) ECU receives invalid CAN messages from the car computer on the CAN bus.

Steering assist may be reduced or may not function as expected.

No

EPAS3P_a120_pvtEcuStatCntError

The electric power assist steering (EPAS) internal private bus is receiving an unexpected status counter value, resulting in the chassis bus electric power assist steering (EPAS3S) Electronic Control Unit (ECU) to lose functionality.

The status counter does not increment as expected.

The power steering function is operational, but steering assist will likely be reduced. A customer facing alert describing a reduced level of assist for power steering may be present. Autopilot may be disabled in some cases.

No

EPAS3P_a109_uiTuneReqCsError

Invalid UI_chassisControlChecksum value received

Unexpected UI_chassisControlChecksum value received

Reduced steering assist

No

EPAS3P_a110_sasMia

SCCM_steeringAngleSensor message not received

SCCM_steeringAngleSensor message is not received by EPAS

Reduced steering assist and SASQF = UNDEFINABLE_ACCURACY

No

EPAS3P_a112_sasCsError

Invalid SCCM_steeringAngleSensorCrc value received

Unexpected SCCM_steeringAngleSensorCrc value received by EPAS

Reduced steering assist and SASQF = UNDEFINABLE_ACCURACY

No

EPAS3P_a113_sasStatusError

Invalid SCCM_steeringAngleSensorStatus value received

Invalid SCCM_steeringAngleSensorStatus value received by EPAS

Reduced steering assist and SASQF = UNDEFINABLE_ACCURACY

No

EPAS3P_a114_gtwConfigMia

GTW_carConfig message not received

GTW_carConfig message is not received by EPAS

Reduced steering assist

No

EPAS3P_a115_ecuStatMia

EPAS3P/S_status message not received

EPAS3P/S_status message is not received by EPAS

Incorrect EPS status on bus

No

EPAS3P_a116_ecuStatCntError

Invalid EPAS3P/S_statusCounter value received

EPAS3P/S_statusCounter is not incrementing correctly

Incorrect EPS status on bus

No

EPAS3P_a118_privateBusOff

Internal private bus off

CAN transmit error counter is above 255

Incorrect EPS status on bus

No

EPAS3P_a119_pvtEcuStatMia

EPAS3P/S_status message not received on internal private bus

EPAS3P/S_status message is not received on internal private bus

Incorrect EPS status on bus

No

EPAS3P_a121_pvtEcuStatCrcError

Invalid EPAS3P/S_statusCrc value received on internal private bus

Unexpected EPAS3P/S_statusCrc value received on internal private bus

Incorrect EPS status on bus

No

EPAS3P_a122_olpActive

Overload protection active

Due to sustained torque, output torque is limited

Reduced steering assist and EAC inhibited

No

EPAS3P_a123_combEcu2StatFail

EPAS3S_status message not received on internal private bus nor vehicle bus

EPAS3S_status message not received on private bus nor vehicle bus

Reduced steering assist and EAC inhibited

No

EPAS3P_a124_tempSensStuckInRange

ECU temperature sensor signal stuck in range

Reduced steering assist

No

EPAS3P_a125_trqSensTrimOutRange

Torque sensor zero point calibration out of range

Motor Angle trim service not performed or incorrect value stored

Reduced steering assist, EAC inhibited, SASQF = UNDEFINABLE_ACCURACY

No

EPAS3P_a138_difMia

The primary Electric Power Assist Steering (EPAS3P) electronic control unit (ECU) is not receiving the expected messages from the front drive inverter (DIF) ECU on the Party controller area network (CAN) bus.

The EPAS3P ECU does not receive the expected messages from the DIF ECU on the Party CAN bus.

Steering assist may be reduced or may not function as expected.

No

EPAS3P_a139_difCntError

The primary Electronic Power Assist Steering (EPAS3P) electronic control unit (ECU) receives invalid controller area network (CAN) messages from the front drive inverter (DIF) ECU on the Party CAN bus.

The EPAS3P ECU receives invalid CAN messages from the DIF ECU on the Party CAN bus.

Steering assist may be reduced or may not function as expected.

No

EPAS3P_a140_difCsError

The primary Electronic Power Assist Steering (EPAS3P) electronic control unit (ECU) receives invalid controller area network (CAN) messages from the front drive inverter (DIF) ECU on the Party CAN bus.

The EPAS3P ECU receives invalid CAN messages from the DIF ECU on the Party CAN bus.

Steering assist may be reduced or may not function as expected.

No

Alerts

Alerts