MyTeslaMate App

Signal Name	Description	Condition	Impact
EPBR_a177_csmApplyRetry	Electronic Parking Brake apply was interrupted. Apply will be retried.	(unitFaultStatus == FAULT_STATUS_RETRY) && (csmRequest == apply) && (stateRequest != ESM_DYNAMIC)	Electronic Parking Brake did not apply, it will retry an apply and enter fault if retry fails
EPBR_a178_caliperStateUnknown	Electronic Parking Brake was not able to determine caliper state on boot.	Caliper state saved is unknown, corrupted, or mismatches Electronic Parking Brake Monitor	Problem with initializing Electronic Parking Brake
EPBR_a190_csmApplyDegraded	Electronic Parking Brake apply failed.	Electronic Parking Brake faulted during apply && (nonterminal == TRUE) && (stateRequest != ESM_DYNAMIC)	Electronic Parking Brake may not be applied, and caliper may be obstructed
EPBR_a191_csmReleaseDegraded	Electronic Parking Brake was unable to release fully.	Electronic Parking Brake faulted during release && (nonterminal == TRUE)	Electronic Parking Brake may not be released, and caliper may be obstructed
EPBR_a195_parkForDriverIsLeaving	The Electronic Parking Brake (EPB) reports the driver is leaving and parks the vehicle.	The EPB attempted to park due to the driver being detected as leaving.	The EPB will be applied.
EPBR_a241_diOutputLocked	A request to change the DI power state has been denied.	Electronic Parking Brake Left detects drive inverter lockout request timed out after 0.5 seconds	Drive inverter may be faulted
EPBR_a242_hvOutputLocked	A request to change the HVC or Contactor power state has been denied.	Electronic Parking Brake Right detects high voltage lockout request timed out after 0.5 seconds	High Voltage control or contactor may be faulted
EPBR_a073_BCS2C_MIA	One or more of the messages the vehicle controller receives periodically from the 2nd row center seat body controller (BCS2C) is not received, indicating the BCS2C may be unavailable (MIA).	One or more of the expected messages from the BCS2C is not received.	2nd row center seat features depending on BCS2C functionality, including seat buckle and heating pad, may be limited or unavailable.
EPBR_a105_TAS_MIA	One or more of the messages the vehicle controller receives periodically from the Tesla Air Suspension (TAS) electronic control unit (ECU) is not received, indicating the TAS ECU may be unavailable (MIA).	One or more of the expected messages from the TAS ECU is not received.	The air suspension may not function as expected.
EPBR_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.
EPBR_a106_PCS_MIA	One or more of the messages the vehicle controller receives periodically from the power conversion system (PCS) electronic control unit (ECU) is not received, indicating the PCS ECU may be unavailable (MIA).	One or more of the expected messages from the PCS ECU is not received.	The vehicle may be unable to charge.
EPBR_a107_BMS_MIA	One or more of the messages the vehicle controller receives periodically from the high voltage (HV) Battery Management System (BMS) electronic control unit (ECU) is not received, indicating the BMS ECU may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the HVBMS ECU within the expected time frame.	The vehicle may be unable to drive or charge.
EPBR_a108_DIF_MIA	One or more of the messages the vehicle controller receives periodically from the front drive inverter (DIF) electronic control unit (ECU) is not received, indicating the DIF ECU may be unavailable (MIA).	One or more of the expected messages from the DIF ECU is not received.	Vehicle speed and power may be limited. Thermal management system features depending on DIF functionality may be limited or unavailable.
EPBR_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.
EPBR_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. The GTW is considered CAN active when VCFRONT_vehGoToSleep is 0.	Vehicle functions that depend on CAN messages from the vehicle gateway (GTW) may be unavailable, or their performance may be affected.
EPBR_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.
EPBR_a139_NvmRedundancyLoss	The Electronic Parking Brake or Electronic Parking Brake Monitor took longer than expected to save caliper state in non-volatile memory.	Caliper state saved to Electronic Parking Brake and Electronic Parking Brake Monitor mismatched for more than 500ms	Non-volatile memory error due to Electronic Parking Brake and Electronic Parking Brake Monitor mismatch
EPBR_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.
EPBR_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. The ESP is considered CAN active when VCFRONT_privateGoToSleep is 0 AND VCFRONT_espLVState is LV_ON.	Stability and traction control functions may be unavailable, or their performance may be affected.
EPBR_a115_VCSEC_MIA	One or more of the messages the vehicle controller receives periodically from the vehicle security controller (VCSEC) is not received, indicating the VCSEC may be unavailable (MIA).	The vehicle controller does not receive one or more of the expected messages from the VCSEC within the expected time frame.	Features depending on VCSEC functionality, including vehicle security and communication with authentication devices, may be limited or unavailable.

EPBR_a177_csmApplyRetry

Electronic Parking Brake apply was interrupted. Apply will be retried.

(unitFaultStatus == FAULT_STATUS_RETRY) && (csmRequest == apply) && (stateRequest != ESM_DYNAMIC)

Electronic Parking Brake did not apply, it will retry an apply and enter fault if retry fails

EPBR_a178_caliperStateUnknown

Electronic Parking Brake was not able to determine caliper state on boot.

Caliper state saved is unknown, corrupted, or mismatches Electronic Parking Brake Monitor

Problem with initializing Electronic Parking Brake

EPBR_a190_csmApplyDegraded

Electronic Parking Brake apply failed.

Electronic Parking Brake faulted during apply && (nonterminal == TRUE) && (stateRequest != ESM_DYNAMIC)

Electronic Parking Brake may not be applied, and caliper may be obstructed

EPBR_a191_csmReleaseDegraded

Electronic Parking Brake was unable to release fully.

Electronic Parking Brake faulted during release && (nonterminal == TRUE)

Electronic Parking Brake may not be released, and caliper may be obstructed

EPBR_a195_parkForDriverIsLeaving

The Electronic Parking Brake (EPB) reports the driver is leaving and parks the vehicle.

The EPB attempted to park due to the driver being detected as leaving.

The EPB will be applied.

EPBR_a241_diOutputLocked

A request to change the DI power state has been denied.

Electronic Parking Brake Left detects drive inverter lockout request timed out after 0.5 seconds

Drive inverter may be faulted

EPBR_a242_hvOutputLocked

A request to change the HVC or Contactor power state has been denied.

Electronic Parking Brake Right detects high voltage lockout request timed out after 0.5 seconds

High Voltage control or contactor may be faulted

EPBR_a073_BCS2C_MIA

One or more of the messages the vehicle controller receives periodically from the 2nd row center seat body controller (BCS2C) is not received, indicating the BCS2C may be unavailable (MIA).

One or more of the expected messages from the BCS2C is not received.

2nd row center seat features depending on BCS2C functionality, including seat buckle and heating pad, may be limited or unavailable.

EPBR_a105_TAS_MIA

One or more of the messages the vehicle controller receives periodically from the Tesla Air Suspension (TAS) electronic control unit (ECU) is not received, indicating the TAS ECU may be unavailable (MIA).

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

The air suspension may not function as expected.

EPBR_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.

EPBR_a106_PCS_MIA

One or more of the messages the vehicle controller receives periodically from the power conversion system (PCS) electronic control unit (ECU) is not received, indicating the PCS ECU may be unavailable (MIA).

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

The vehicle may be unable to charge.

EPBR_a107_BMS_MIA

One or more of the messages the vehicle controller receives periodically from the high voltage (HV) Battery Management System (BMS) electronic control unit (ECU) is not received, indicating the BMS ECU may be unavailable (MIA).

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

The vehicle may be unable to drive or charge.

EPBR_a108_DIF_MIA

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

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

Vehicle speed and power may be limited. Thermal management system features depending on DIF functionality may be limited or unavailable.

EPBR_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.

EPBR_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. The GTW is considered CAN active when VCFRONT_vehGoToSleep is 0.

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

EPBR_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.

EPBR_a139_NvmRedundancyLoss

The Electronic Parking Brake or Electronic Parking Brake Monitor took longer than expected to save caliper state in non-volatile memory.

Caliper state saved to Electronic Parking Brake and Electronic Parking Brake Monitor mismatched for more than 500ms

Non-volatile memory error due to Electronic Parking Brake and Electronic Parking Brake Monitor mismatch

EPBR_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.

EPBR_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. The ESP is considered CAN active when VCFRONT_privateGoToSleep is 0 AND VCFRONT_espLVState is LV_ON.

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

EPBR_a115_VCSEC_MIA

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

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

Features depending on VCSEC functionality, including vehicle security and communication with authentication devices, may be limited or unavailable.

Alerts

Alerts