MyTeslaMate App

Signal Name	Description	Condition	Impact
DPB_a242_uCSafetyNotificationGRAM	micro controller memory guard has detected a GRAM guard violation event.	micro controller memory guard detected a GRAM access violation (e.g. blocked write due to HW fault or misconfiguration of shared RAM variables), If a guard violation is detected the information alert is set.	System will be running with full assistant for driver brake request.
DPB_a241_uCSafetyNotification	micro controller memory/peripheral guard has detected a violation event by an unauthorized busmaster.	micro controller memory guard detected an access violation by an unauthorized busmaster (e.g. blocked write to RAM, read/write to peripheral etc.), If a guard violation is detected the information alert is set.	System will be running with full assistant for driver brake request.
DPB_a240_microSafetyLogicFault	Startup safety test detected an alert of uC safety logic.	Malfunction of the micro controller safety logic, During start up the safety logic (e.g. Flash/RAM ECC) of the micro controller is tested. If one of these tests fails RBuCSafetyLogicFault is reported.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a239_microSafetyFault	micro controller safety logic has detected an alert.	micro controller safety logic detected an error (e.g. Flash/RAM ECC uncorrectable fault), If a micro controller alert is detected the ErrorPin is set by HW only reaction (no SW action) and an exception is issued.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a238_microRegisterFault	An ADC register Bit flipped or is stucked.	One of the following: Bits of a monitored register flipped or Bits of a monitored register are stucked. Reads registers cyclically and compares them with expected values.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a237_uCVoltageDividerDrift	UB_Valve to UBRD_INT plausi voltage divider drift alert (large deviation between UB_Valve to UBRD_INT voltage).	Possible voltage divider drift alert (with respect to UB_Valve and UBRD_INT measurement). Voltage difference between UB_Valve and UBRD_INT is checked every specified time. alert is set if preconditions are met (UBRD_INT below active threshold) and the voltage difference exceeds a threshold.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a236_UB6SupplyPathFault	High ohmic UB6 path detected (Large deviation between UB6 & UBB during motor actuation).	High ohmic path between UBB and UB6. During motor actuation: If UB6 is less than specified voltage and UBB minus UB6 is greater than specified voltage, then the alert shall be set.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a235_UB6PlausiMonFault	UB6 to UBB plausible voltage divider drift alert (large deviation in the UB6 to UBB ratio).	Possible voltage divider drift alert (with respect to UBB and UB6 measurement). Ratio between UBB and UB6 is checked every specified time. alert is set if the ratio is within specified range.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a234_systemTaskOverRun	Runtime overload.	Usually a task did not finish within it's cycle time (overload situation), Internal system timing error (system overload).	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a232_systemErrorHook	Internal interrupt based system error.	Invalid interrupt, unbalanced interrupt lock call or too long interrupt lock, Unsupported interrupts from hardware occurred or interrupt lock API call unbalanced or too long.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a231_stackOverUnderFlow	Stack over- or underflow.	The stack is too small for the application, Overflow: The stack is too small for the application. Underflow: Can only occur in case of SW or compiler faults.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a230_OSErrorHook	Operating System error (e.g. task overrun, invalid parameters for OS API).	Usually a task did not finish within it's cycle time (overload situation), Internal system timing error (system overload detected by operating system).	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a229_IREFOutOfRange	The ASIC internal current reference is out of range.	Problem of ASIC reset logic. The ASIC provides an internal current reference that is used for monitorings/internal checks.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a228_supplyASICInitFault	Initial test/check for ASIC supply parts failed.	Defect or deviation of ASIC configuration on software and hardware side. Test checks if the voltage regulator configuration of the ASIC matches the software configuration.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a226_U5VTestFault	U5V voltage comparator test failed.	Defect of ASIC, Test starts and evalutes the ASIC internal test of the U5V voltage regulator.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a225_U5VOutOfRange	U5V is out of range.	Problem of ASIC reset logic. Monitoring of U5V (internal 5V supply for sensors and communication) out of range bits provided by the ASIC. If U5V is out of range a reset should be issued for the ASIC.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a224_brakeBoostLost	Brake boosting capability is lost in DPB system.	Plunger Separation Valve or Plunger Overshoot Valve inoperable (aka huge leakage rate present in plunger circuit) OR no brake fluid OR wrong plunger configuration (as held in EEPROM), Fault is raised if Active System Tests (component STS) detect a latent fault that might jeopardize the hydraulic backup functionality. The first occurence of the fault may only be detected right after the start of a new OtherCycle, when in full hydraulic system and at earliest if any brake event has been absent since the start of a new OtherCycle. The system reaction to the presence of the fault is DPB Hydraulic Backup (without brake boost).	System will request Hydraulic Boost Compensation when driver pressed the brake pedal.
DPB_a223_RAMFault	RAM alert.	Uncorrectable RAM ECC fault2. Limit of RAM ECC correctable bit faults exceeded.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a222_excessiveEcuResetsDetected	An excessive number of ECU resets has occurred in a row during actuator initialization (before IPC completion).	High electric resistance in the IPB power supply. Either due to a weak battery or due to corrosion of the supply cable. The alert is set if several ECU resets in a row have occurred before the initial actuator tests could finish.	System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
DPB_a221_notShutdownRight	Plunger was not parked at its sleeping position at the previous postrun.	The alert is frequently logged during brake system and vehicle production. The alert is set if the NVM item that stores information about the plunger position at the previous shutdown is empty or indicates that the plunger was at an unknown position.	System will be running with full assistant for driver brake request.

DPB_a242_uCSafetyNotificationGRAM

micro controller memory guard has detected a GRAM guard violation event.

micro controller memory guard detected a GRAM access violation (e.g. blocked write due to HW fault or misconfiguration of shared RAM variables), If a guard violation is detected the information alert is set.

System will be running with full assistant for driver brake request.

DPB_a241_uCSafetyNotification

micro controller memory/peripheral guard has detected a violation event by an unauthorized busmaster.

micro controller memory guard detected an access violation by an unauthorized busmaster (e.g. blocked write to RAM, read/write to peripheral etc.), If a guard violation is detected the information alert is set.

System will be running with full assistant for driver brake request.

DPB_a240_microSafetyLogicFault

Startup safety test detected an alert of uC safety logic.

Malfunction of the micro controller safety logic, During start up the safety logic (e.g. Flash/RAM ECC) of the micro controller is tested. If one of these tests fails RBuCSafetyLogicFault is reported.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a239_microSafetyFault

micro controller safety logic has detected an alert.

micro controller safety logic detected an error (e.g. Flash/RAM ECC uncorrectable fault), If a micro controller alert is detected the ErrorPin is set by HW only reaction (no SW action) and an exception is issued.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a238_microRegisterFault

An ADC register Bit flipped or is stucked.

One of the following: Bits of a monitored register flipped or Bits of a monitored register are stucked. Reads registers cyclically and compares them with expected values.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a237_uCVoltageDividerDrift

UB_Valve to UBRD_INT plausi voltage divider drift alert (large deviation between UB_Valve to UBRD_INT voltage).

Possible voltage divider drift alert (with respect to UB_Valve and UBRD_INT measurement). Voltage difference between UB_Valve and UBRD_INT is checked every specified time. alert is set if preconditions are met (UBRD_INT below active threshold) and the voltage difference exceeds a threshold.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a236_UB6SupplyPathFault

High ohmic UB6 path detected (Large deviation between UB6 & UBB during motor actuation).

High ohmic path between UBB and UB6. During motor actuation: If UB6 is less than specified voltage and UBB minus UB6 is greater than specified voltage, then the alert shall be set.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a235_UB6PlausiMonFault

UB6 to UBB plausible voltage divider drift alert (large deviation in the UB6 to UBB ratio).

Possible voltage divider drift alert (with respect to UBB and UB6 measurement). Ratio between UBB and UB6 is checked every specified time. alert is set if the ratio is within specified range.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a234_systemTaskOverRun

Runtime overload.

Usually a task did not finish within it's cycle time (overload situation), Internal system timing error (system overload).

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a232_systemErrorHook

Internal interrupt based system error.

Invalid interrupt, unbalanced interrupt lock call or too long interrupt lock, Unsupported interrupts from hardware occurred or interrupt lock API call unbalanced or too long.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a231_stackOverUnderFlow

Stack over- or underflow.

The stack is too small for the application, Overflow: The stack is too small for the application. Underflow: Can only occur in case of SW or compiler faults.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a230_OSErrorHook

Operating System error (e.g. task overrun, invalid parameters for OS API).

Usually a task did not finish within it's cycle time (overload situation), Internal system timing error (system overload detected by operating system).

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a229_IREFOutOfRange

The ASIC internal current reference is out of range.

Problem of ASIC reset logic. The ASIC provides an internal current reference that is used for monitorings/internal checks.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a228_supplyASICInitFault

Initial test/check for ASIC supply parts failed.

Defect or deviation of ASIC configuration on software and hardware side. Test checks if the voltage regulator configuration of the ASIC matches the software configuration.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a226_U5VTestFault

U5V voltage comparator test failed.

Defect of ASIC, Test starts and evalutes the ASIC internal test of the U5V voltage regulator.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a225_U5VOutOfRange

U5V is out of range.

Problem of ASIC reset logic. Monitoring of U5V (internal 5V supply for sensors and communication) out of range bits provided by the ASIC. If U5V is out of range a reset should be issued for the ASIC.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a224_brakeBoostLost

Brake boosting capability is lost in DPB system.

Plunger Separation Valve or Plunger Overshoot Valve inoperable (aka huge leakage rate present in plunger circuit) OR no brake fluid OR wrong plunger configuration (as held in EEPROM), Fault is raised if Active System Tests (component STS) detect a latent fault that might jeopardize the hydraulic backup functionality. The first occurence of the fault may only be detected right after the start of a new OtherCycle, when in full hydraulic system and at earliest if any brake event has been absent since the start of a new OtherCycle. The system reaction to the presence of the fault is DPB Hydraulic Backup (without brake boost).

System will request Hydraulic Boost Compensation when driver pressed the brake pedal.

DPB_a223_RAMFault

RAM alert.

Uncorrectable RAM ECC fault2. Limit of RAM ECC correctable bit faults exceeded.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a222_excessiveEcuResetsDetected

An excessive number of ECU resets has occurred in a row during actuator initialization (before IPC completion).

High electric resistance in the IPB power supply. Either due to a weak battery or due to corrosion of the supply cable. The alert is set if several ECU resets in a row have occurred before the initial actuator tests could finish.

System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.

DPB_a221_notShutdownRight

Plunger was not parked at its sleeping position at the previous postrun.

The alert is frequently logged during brake system and vehicle production. The alert is set if the NVM item that stores information about the plunger position at the previous shutdown is empty or indicates that the plunger was at an unknown position.

System will be running with full assistant for driver brake request.

Alerts

Alerts