FLS Volvo FH4

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U200288

Bussoff detection

Bus off

No communication on CAN General reduced system functionality

Short circuit to ground/battery Broken cables

Diagnostic Service 14. No additional action is needed.

Check CAN wires Battery reset

CAN Communication Active Safety Proprietary 2 Net

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U300041

Invalid SW or data

General Checksum

Failure

ECU not alive

Faulty or wrong data

downloaded

Diagnostic Service 14. No additional

action is needed.

1. Reprogram ECU with correct SW

2. Replace ECU

Electronic control unit

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U300044

RAM check failed

Data Memory Failure

ECU is set to ERROR; System is restarted;

After 3 restarts without

success the system is kept in permanent Error.

Memory failure

Diagnostic Service 14. No additional action is needed.

Replace ECU

Electronic control unit

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U300046

“EEPROM record CRC error EEPROM access

failed”

Calibration / Parameter Memory Failure

FLS is set to ERROR.

Memory failure

Diagnostic Service 14. No additional action is needed.

1. Reprogram ECU with correct SW

2. Perform new calibration

Electronic control unit

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U300049

HW malfunction detected inside the ECU

Internal Electronic Failure

FLS is set to ERROR; System is restarted;

After 3 restarts without

success the system is kept in permanent Error.

ECU internal damaged

Diagnostic Service 14. No additional action is needed.

Replace ECU

Electronic control unit

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U30004B

ECU temperature detected to be above 105 degrees

Over Temperature

Over temperature will generate out of range/invalid values; FLS is set to ERROR.

Environment temperature above normal operating range

ECU damaged

Diagnostic Service 14. No additional action is needed.

1. Check ECU environment

2. Replace ECU if fault is still present when environment temperature is in nomral range

Electronic control unit

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U300054

Calibration has not been performed

Missing Calibration

Un-calibrated sensor will generate invalid data;

FLS is set to ERROR.

A sensor calibration has not been performed

Diagnostic Service 14. No additional action is needed.

Perform Sensor Calibration

Electronic control unit

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U300094

Unexpected operation failure(eg.Watchdog

)

Unexpected Operation

FLS is set to error

Unexpected reset due to internal ECU failure

Diagnostic Service 14. No additional action is needed.

1. Reload SW

2. Check that input CAN signals is correct

3. Replace ECU

Electronic control unit

Node

DTC ISO

FailureEvent

FTB_Name

FunctBehaviorDesc

PossibleRootCause

ProcedureEraseConfirmedDtc

ProposedWorkshopAction

ProprietaryName

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U300097

Sensor blocked

Component or System Operation Obstructed or Blocked

FLS is set to ERROR.

Sensor is obstructed

Radar or secondary surface is covered with ex snow or dirt.

Diagnostic Service 14. No additional action is needed.

Check that the sensor is not blocked by eg dirt, snow, obstacle

Electronic control unit

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U300316

Power supply ECU Low voltage <= 10 V

Circuit Voltage Below Threshold

FLS is set to ERROR.

1. Drained battery

2. Power supply system failure

Diagnostic Service 14. No additional action is needed.

1. Check battery

2. Check power supply system

Battery Power

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U300317

Power supply ECU High voltage > 32 V

Circuit Voltage Above Threshold

FLS is set to ERROR.

1. Power supply system failure

2. Overload alternator

Diagnostic Service 14. No additional action is needed.

Check power supply system Overload alternator

Battery Power

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U300078

Sensor misaligned

Alignment or Adjustment Incorrect

FLS is set to ERROR.

“If the Forward Looking Sensor HW is misaligned then the ForwardLookingSensorObje ctData shall be set to error or

similar within 100ms from the time the misalignment was discovered. Sensor misaligned: e.g. Faulty installation / re-installation, Mechanical damages, FLS reports ‘Sensor misalignment’.

“”Alignment or adjustment incorrect””

(according with ISO15031- 6)”

Diagnostic Service 14. No additional action is needed.

1. Look for external damage eg bracket, sensor, bumper

2. Recalibrate sensor.

3. Use Volvo orginal washers to adjust  FLS assembly to be in valid range

Electronic control unit

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U300093

“FLS azimuth motor failure,

FLS elevation motor failure,

FLS RF-module failure”

No Operation

FLS is set to ERROR; System is restarted;

After 3 restarts without success the system is kept in permanent error.

Mechanical/electrical damage of the motor e.g. FLS azimuth motor failure, FLS elevation motor failure, FLS RF-module failure

Diagnostic Service 14. No additional action is needed.

Replace ECU

Electronic control unit

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