TESLA ADAS

Tesla RADC Alert Codes

Radar Controller reference page with 78 Tesla alert codes, 40 detailed descriptions, severity counts, and diagnostic context.

0
Critical
23
Warning
55
Caution
0
Info

What the RADC system covers

Radar Controller alerts belong to Tesla's proprietary diagnostic alert system and are grouped under the adas category.

Read all active alerts together instead of diagnosing a single code in isolation.
Check recent service, firmware updates, and low-voltage battery condition.
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Alert type breakdown

Alert 55 Warning 23

Tesla RADC code list

Rows with a linked code have a dedicated detail page.

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Code Severity Type Description
RADC_a001
RADC_a001_can1BusOff
Caution Alert
RADC_a001 - can1Bus Off

Tesla alert code in the Radar Controller (RADC) module. Secondary CAN Bus Off

RADC_a002
RADC_a002_ecuAdcError
Caution Alert
RADC_a002 - ECU ADC Error

Tesla alert code in the Radar Controller (RADC) module. ADC Issue

RADC_a003
RADC_a003_ecuBistDisabled
Caution Alert
RADC_a003 - ECU Bist Disabled

Tesla alert code in the Radar Controller (RADC) module related to ecu bist disabled.

RADC_a004
RADC_a004_ecuCrcHwError
Caution Alert
RADC_a004 - ECU Crc HW Error

Tesla alert code in the Radar Controller (RADC) module related to ecu crc hw error.

RADC_a005
RADC_a005_ecuEcuMError
Caution Alert
RADC_a005 - ECU ECU M Error

Tesla alert code in the Radar Controller (RADC) module related to ecu ecu m error.

RADC_a006
RADC_a006_ecuFimError
Caution Alert
RADC_a006 - ECU Fim Error

Tesla alert code in the Radar Controller (RADC) module related to ecu fim error.

RADC_a007
RADC_a007_ecuGptCheckError
Caution Alert
RADC_a007 - ECU Gpt Check Error

Tesla alert code in the Radar Controller (RADC) module related to ecu gpt check error.

RADC_a008
RADC_a008_ecuHwSwInterlock
Caution Alert
RADC_a008 - ECU HW SW Interlock

Tesla alert code in the Radar Controller (RADC) module related to ecu hw sw interlock.

RADC_a009
RADC_a009_plantModeActive
Caution Alert
RADC_a009 - plant Mode Active

Tesla alert code in the Radar Controller (RADC) module related to plant mode active.

RADC_a010
RADC_a010_ecuIoHwAbError
Caution Alert
RADC_a010 - ECU Io HW Ab Error

Tesla alert code in the Radar Controller (RADC) module related to ecu io hw ab error.

RADC_a011
RADC_a011_ecuMcemError
Caution Alert
RADC_a011 - ECU Mcem Error

Tesla alert code in the Radar Controller (RADC) module related to ecu mcem error.

RADC_a012
RADC_a012_ecuSpiError
Caution Alert
RADC_a012 - ECU SPI Error

Tesla alert code in the Radar Controller (RADC) module related to ecu spi error.

RADC_a013
RADC_a013_ecuWdgError
Caution Alert
RADC_a013 - ECU Wdg Error

Tesla alert code in the Radar Controller (RADC) module related to ecu wdg error.

RADC_a014
RADC_a014_fctSelfTestNotDone
Caution Alert
RADC_a014 - fct Self Test Not Done

Tesla alert code in the Radar Controller (RADC) module related to fct self test not done.

RADC_a015
RADC_a015_fctSenInterference
Caution Alert
RADC_a015 - fct Sen Interference

Tesla alert code in the Radar Controller (RADC) module related to fct sen interference.

RADC_a016
RADC_a016_adcOverVolt
Caution Alert
RADC_a016 - ADC Over Volt

Tesla alert code in the Radar Controller (RADC) module related to adc over volt.

RADC_a017
RADC_a017_adcUnderVolt
Caution Alert
RADC_a017 - ADC Under Volt

Tesla alert code in the Radar Controller (RADC) module related to adc under volt.

RADC_a018
RADC_a018_internalHardwareFault
Caution Alert
RADC_a018 - internal Hardware Fault

Tesla alert code in the Radar Controller (RADC) module related to internal hardware fault.

RADC_a019
RADC_a019_internalSoftwareFault
Caution Alert
RADC_a019 - internal Software Fault

Tesla alert code in the Radar Controller (RADC) module. DAS_vehicleState message not received

RADC_a020
RADC_a020_overTemp
Caution Alert
RADC_a020 - over Temp

Tesla alert code in the Radar Controller (RADC) module related to over temp.

RADC_a021
RADC_a021_overTempCrit
Caution Alert
RADC_a021 - over Temp Crit

Tesla alert code in the Radar Controller (RADC) module related to over temp crit.

RADC_a022
RADC_a022_tempImplausible
Caution Alert
RADC_a022 - temp Implausible

Tesla alert code in the Radar Controller (RADC) module related to temp implausible.

RADC_a023
RADC_a023_underTemp
Caution Alert
RADC_a023 - under Temp

Tesla alert code in the Radar Controller (RADC) module related to under temp.

RADC_a024
RADC_a024_underTempCrit
Caution Alert
RADC_a024 - under Temp Crit

Tesla alert code in the Radar Controller (RADC) module related to under temp crit.

RADC_a025
RADC_a025_overVoltage
Caution Alert
RADC_a025 - over Voltage

Tesla alert code in the Radar Controller (RADC) module. Supply Over Voltage

RADC_a026
RADC_a026_underVoltage
Caution Alert
RADC_a026 - under Voltage

Tesla alert code in the Radar Controller (RADC) module. Supply Under Voltage

RADC_a027
RADC_a027_nvmFailure
Caution Alert
RADC_a027 - NVM Failure

Tesla alert code in the Radar Controller (RADC) module related to nvm failure.

RADC_a028
RADC_a028_rfChipError
Caution Alert
RADC_a028 - rf Chip Error

Tesla alert code in the Radar Controller (RADC) module related to rf chip error.

RADC_a029
RADC_a029_rhcError
Caution Alert
RADC_a029 - rhc Error

Tesla alert code in the Radar Controller (RADC) module related to rhc error.

RADC_a030
RADC_a030_rspError
Caution Alert
RADC_a030 - rsp Error

Tesla alert code in the Radar Controller (RADC) module related to rsp error.

RADC_a031
RADC_a031_sensorMisaligned
Caution Alert
RADC_a031 - sensor Misaligned

Tesla alert code in the Radar Controller (RADC) module. See description

RADC_a032
RADC_a032_sensorBlocked
Caution Alert
RADC_a032 - sensor Blocked

Tesla alert code in the Radar Controller (RADC) module related to sensor blocked.

RADC_a033
RADC_a033_sensorNeverAligned
Caution Alert
RADC_a033 - sensor Never Aligned

Tesla alert code in the Radar Controller (RADC) module. The radar sensor is cleared of any blockage. Radar internal object Tracking Self Test Not Done - This indicates that the radar has not seen any objects after being powered on. This alert is set on startup. A condition prevents successful CANRX (CAN message received) for the vehicle state message, relating to a checksum, a counter, or an out-of-bounds signal value. The vehicle state message sent from the driver assistance system (DAS) Electronic Control Unit (ECU) to the radar controller (RADC) ECU is not as expected / as required for the radar to be enabled. ECU Internal Critical Temperature Sensor Hardware Interference - The extrapolated sensor range is below the required range threshold. Most likely by increased noise from another HF (high frequency) source When the sensor detects interference from a HF source As soon as the noise from the HF source has subsided. Radar object detection is affected, radar might provide incorrect information for objects which will impact autopilot functionality. Redundant Temperature Sensor Implausible DAS_carConfig message was not received

RADC_a034
RADC_a034_vehDynamicsError
Caution Alert
RADC_a034 - veh Dynamics Error

Tesla alert code in the Radar Controller (RADC) module related to veh dynamics error.

RADC_a035
RADC_a035_vinMIA
Caution Alert
RADC_a035 - VIN MIA

Tesla alert code in the Radar Controller (RADC) module related to vin mia.

RADC_a036
RADC_a036_carConfigMIA
Caution Alert
RADC_a036 - car Config MIA

Tesla alert code in the Radar Controller (RADC) module related to car config mia.

RADC_a037
RADC_a037_inertialSignalsMIA
Caution Alert
RADC_a037 - inertial Signals MIA

Tesla alert code in the Radar Controller (RADC) module related to inertial signals mia.

RADC_a038
RADC_a038_steeringWheelAngleMIA
Caution Alert
RADC_a038 - steering Wheel Angle MIA

Tesla alert code in the Radar Controller (RADC) module. DAS_steeringWheelAngle message was not received Radar in Plant Mode - The Radar Plant mode routine (internally knows as VIN learn) has failed to complete

RADC_a039
RADC_a039_vehicleStateMIA
Caution Alert
RADC_a039 - vehicle State MIA

Tesla alert code in the Radar Controller (RADC) module. Unexpected HW Reset

RADC_a040
RADC_a040_wheelSpeedsMIA
Caution Alert
RADC_a040 - wheel Speeds MIA

Tesla alert code in the Radar Controller (RADC) module. DAS_wheelSpeeds not received

RADC_a041
RADC_a041_vinErr
Caution Alert
RADC_a041 - VIN Err

Tesla alert code in the Radar Controller (RADC) module. This alert is set when there is an error in the VIN message and is cleared when the message is received as expected. The DAS_VIN message from the drivers assistance system (DAS) electronic control unit (ECU) is erroneous.

RADC_a042
RADC_a042_carConfigErr
Caution Alert
RADC_a042 - car Config Err

Tesla alert code in the Radar Controller (RADC) module related to car config err.

RADC_a043
RADC_a043_inertialSignalsErr
Caution Alert
RADC_a043 - inertial Signals Err

Tesla alert code in the Radar Controller (RADC) module related to inertial signals err.

RADC_a044
RADC_a044_steeringWheelAngleErr
Caution Alert
RADC_a044 - steering Wheel Angle Err

Tesla alert code in the Radar Controller (RADC) module. A condition prevents successful CANRX (CAN message received) for the steering wheel angle message, relating to a checksum, a counter, or an out-of-bounds signal value. The steering wheel angle message sent from the driver assistance system (DAS) Electronic Control Unit (ECU) to the radar controller (RADC) ECU is not as expected / as required for the radar to be enabled. ECU Internal fault - Hardware Watchdog ECU Internal fault - ADC Conversion Timeout ECU Internal fault - Mode Control Entry Error Vehicle Dynamics Error - the vehicle dynamics signals are out of spec, MIA or SNA ECU Internal ADC Overvoltage - Indicates an over voltage condition for the following voltage rails 1V25, 3V3, 4V5, 5V. Set when the voltages for the respective rails are above threshold. Cleared when over voltages return to nominal. Sensor function will be impaired, radar functions will be unavailable ECU Internal fault - ECU Module Configuration Error Received Country Does Not Match Learned Parameter When the learned parameters meet the ones being sent to the radar on CAN.

RADC_a045
RADC_a045_vehicleStateErr
Caution Alert
RADC_a045 - vehicle State Err

Tesla alert code in the Radar Controller (RADC) module related to vehicle state err.

RADC_a046
RADC_a046_wheelSpeedsErr
Caution Alert
RADC_a046 - wheel Speeds Err

Tesla alert code in the Radar Controller (RADC) module related to wheel speeds err.

RADC_a047
RADC_a047_mismatchChassisType
Caution Alert
RADC_a047 - mismatch Chassis Type

Tesla alert code in the Radar Controller (RADC) module related to mismatch chassis type.

RADC_a048
RADC_a048_mismatchAirSuspension
Caution Alert
RADC_a048 - mismatch Air Suspension

Tesla alert code in the Radar Controller (RADC) module. Received DAS_airSuspension Does Not Match Learned Parameter Sensor is disabled due to not having proper vehicle configuration, radar functions will not be available Set when transmit error count is above 255, Per ISO 11898-1. A 12v reset will clear the transmit error ECU internal fault - DSP Error, replace sensor Radar functions will be disabled. CANRX Error for DAS_VIN message When an erroneous message is received from DAS, for invalid checksum, invalid counter or out of bounds signal value. A condition prevents successful CANRX (CAN message received) for the car configuration message, relating to a checksum, a counter, or an out-of-bounds signal value. The car configuration message sent from the driver assistance system (DAS) Electronic Control Unit (ECU) to the radar controller (RADC) ECU is not as expected / as required for the radar to be enabled. Received EPAS Type Does Not Match Learned Parameter

RADC_a049
RADC_a049_mismatchFourWheelDrive
Caution Alert
RADC_a049 - mismatch Four Wheel Drive

Tesla alert code in the Radar Controller (RADC) module. Received 4WD Does Not Match Learned Parameter

RADC_a050
RADC_a050_mismatchCountry
Caution Alert
RADC_a050 - mismatch Country

Tesla alert code in the Radar Controller (RADC) module related to mismatch country.

RADC_a051
RADC_a051_mismatchEPASType
Caution Alert
RADC_a051 - mismatch EPAS Type

Tesla alert code in the Radar Controller (RADC) module. Unexpected SW Reset

RADC_a052
RADC_a052_mismatcRadPos
Caution Alert
RADC_a052 - mismatc Rad Pos

Tesla alert code in the Radar Controller (RADC) module related to mismatc rad pos.

RADC_a053
RADC_a053_emError
Caution Alert
RADC_a053 - em Error

Tesla alert code in the Radar Controller (RADC) module related to em error.

RADC_a054
RADC_a054_blockageInfo_Frame_1
Caution Alert
RADC_a054 - blockage Info Frame 1

Tesla alert code in the Radar Controller (RADC) module. The radar is blocked. This alert is primarily informational for radar blockage detection and pertains to the first frame of sensor blockage parameters. ECU Internal fault - Software Executed Unreached Code ECU Internal fault - SPI Fault Rx/Tx Received Radar Location Does Not Match Learned Parameter ECU internal fault - NVM Failure, replace sensor ECU Internal Under Temperature - The Radar internal NTC has detected below than normal temperature When the radar internal temp exceeds the lower temperature threshold. Radar functions will be disabled due to low operating temperature Radar Never Aligned - The radar has never been aligned Always set on new radars by default.

RADC_a055
RADC_a055_blockageInfo_Frame_2
Caution Alert
RADC_a055 - blockage Info Frame 2

Tesla alert code in the Radar Controller (RADC) module. The radar is blocked. This alert is primarily informational for radar blockage detection and pertains to the second frame of sensor blockage parameters.

RADC_w001
RADC_w001_can1BusOff
Warning Warning
RADC_w001 - can1Bus Off

Tesla warning code in the Radar Controller (RADC) module. The radar module reports an error with the secondary controller area network (CAN) bus. Too many CAN errors were detected, and the CAN transceiver was switched off.

RADC_w002
RADC_w002_ecuAdcError
Warning Warning
RADC_w002 - ECU ADC Error

Tesla warning code in the Radar Controller (RADC) module. There is an issue with one of the radar's internal analog / digital converters (ADCs).

RADC_w003
RADC_w003_ecuBistDisabled
Warning Warning
RADC_w003 - ECU Bist Disabled

Tesla warning code in the Radar Controller (RADC) module. This alert is set when the memory built-in self-test (MBIST) of the radar module is disabled.

RADC_w004
RADC_w004_ecuCrcHwError
Warning Warning
RADC_w004 - ECU Crc HW Error

Tesla warning code in the Radar Controller (RADC) module. This alert indicates that there is an error in the cyclic redundancy check (CRC) module of the radar.

RADC_w005
RADC_w005_ecuEcuMError
Warning Warning
RADC_w005 - ECU ECU M Error

Tesla warning code in the Radar Controller (RADC) module. There is an internal issue in the radar module.

RADC_w006
RADC_w006_ecuFimError
Warning Warning
RADC_w006 - ECU Fim Error

Tesla warning code in the Radar Controller (RADC) module. There is an internal firmware issue with the radar module.

RADC_w007
RADC_w007_ecuGptCheckError
Warning Warning
RADC_w007 - ECU Gpt Check Error

Tesla warning code in the Radar Controller (RADC) module. There is an internal hardware issue with the radar module.

RADC_w032
RADC_w032_sensorBlocked
Warning Warning
RADC_w032 - sensor Blocked

Tesla warning code in the Radar Controller (RADC) module. This alert is set when the radar sensor is blocked. This alert is cleared when the radar blockage is cleared.

RADC_w035
RADC_w035_vinMIA
Warning Warning
RADC_w035 - VIN MIA

Tesla warning code in the Radar Controller (RADC) module. This alert is set when the Vehicle Identification Number (VIN) message is not received. This alert is cleared when the message is received. The radar has no received the DAS_VIN message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU).?

RADC_w036
RADC_w036_carConfigMIA
Warning Warning
RADC_w036 - car Config MIA

Tesla warning code in the Radar Controller (RADC) module. This alert is set when the DAS_carConfig message is not received. This alert is cleared when the message is received. The radar has not received the DAS_carConfig message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU).?

RADC_w038
RADC_w038_steeringWheelAngleMIA
Warning Warning
RADC_w038 - steering Wheel Angle MIA

Tesla warning code in the Radar Controller (RADC) module. This alert is set when the DAS_vehicleSTateAngle message is not received. This alert is cleared when the message is received. The radar has not received the DAS_SteeringWheelAngle message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU).?

RADC_w039
RADC_w039_vehicleStateMIA
Warning Warning
RADC_w039 - vehicle State MIA

Tesla warning code in the Radar Controller (RADC) module. This alert is set when the DAS_vehicleState message is not received. This error is cleared when the message is received. The radar has not received the DAS_vehicleState message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU).

RADC_w040
RADC_w040_wheelSpeedsMIA
Warning Warning
RADC_w040 - wheel Speeds MIA

Tesla warning code in the Radar Controller (RADC) module. This alert is set when the DAS_wheelSpeeds message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU) was not received by the radar. This alert is cleared when the message is received again.?

RADC_w041
RADC_w041_vinErr
Warning Warning
RADC_w041 - VIN Err

Tesla warning code in the Radar Controller (RADC) module. This alert is set when there is an error in the DAS_VIN message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU) received by the radar. This alert is cleared when the message is received as expected.?

RADC_w042
RADC_w042_carConfigErr
Warning Warning
RADC_w042 - car Config Err

Tesla warning code in the Radar Controller (RADC) module. This alert is set when there is an error in the DAS_carConfig message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU) received by the radar. This alert is cleared when the message is received as expected.??

RADC_w043
RADC_w043_inertialSignalsErr
Warning Warning
RADC_w043 - inertial Signals Err

Tesla warning code in the Radar Controller (RADC) module. This alert is set when there is an error in the DAS_inertialSignals message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU) received by the radar. This alert is cleared when the message is received as expected.

RADC_w045
RADC_w045_vehicleStateErr
Warning Warning
RADC_w045 - vehicle State Err

Tesla warning code in the Radar Controller (RADC) module. This alert is set when there is an error in the DAS_vehicleState ?message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU) received by the radar. This alert is cleared when the message is received as expected.??

RADC_w046
RADC_w046_wheelSpeedsErr
Warning Warning
RADC_w046 - wheel Speeds Err

Tesla warning code in the Radar Controller (RADC) module. This alert is set when there is an error in the DAS_wheelSpeeds message from the Driver's Assistance System (DAS) Electronic Control Unit (ECU) received by the radar. This alert is cleared when the message is received as expected.??

RADC_w047
RADC_w047_mismatchChassisType
Warning Warning
RADC_w047 - mismatch Chassis Type

Tesla warning code in the Radar Controller (RADC) module. The Chassis Type on the CAN does not match the learned parameter. This alert is cleared when the chassis Type matches. The Chassis type learned via the Plant Mode routine is not the same as the value received on CAN.

RADC_w048
RADC_w048_mismatchAirSuspension
Warning Warning
RADC_w048 - mismatch Air Suspension

Tesla warning code in the Radar Controller (RADC) module. The air suspension type on CAN does not match the learned parameter. This alert is cleared when the air suspension type is matched. Air suspension type learned via the plant mode routine is not the same as the value received on CAN.

RADC_w049
RADC_w049_mismatchFourWheelDrive
Warning Warning
RADC_w049 - mismatch Four Wheel Drive

Tesla warning code in the Radar Controller (RADC) module. The Drive Train Type can CAN does not match the learned parameter. This alert is cleared when the drive train type is matched. The Drive Train type learned via the Plant Mode routine is not the same as the value received on the CAN.

RADC_w050
RADC_w050_mismatchCountry
Warning Warning
RADC_w050 - mismatch Country

Tesla warning code in the Radar Controller (RADC) module. The Country Code on CAN does not match the matched learned parameter. This alert is cleared when the country code is matched. The Country Code learned via the Plant Mode routine is not the same as the value received on CAN.

RADC_w052
RADC_w052_mismatcRadPos
Warning Warning
RADC_w052 - mismatc Rad Pos

Tesla warning code in the Radar Controller (RADC) module. The radar position on the CAN does not match the learned parameter. This alert is cleared when the radar position is matched. The radar position learned via the Plant Mode routine is not the same as the value received on the CAN.