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U114107
Button in pressed state for 60s
Mechanical Failures
A release event will be sent when a softkey button is detected stuck.
An error event will be sent when a rocker button is detected stuck
Mechanical – Button stuck
Diagnostic Service 14. No additional action is needed.
Check if any ECU button is stuck
Softkey and Rocker Buttons
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U003788
Bus off state
Bus off
No communication on CAN General reduced system functionality
CAN bus short circuit
Diagnostic Service 14. No additional action is needed.
Check cabling and connectors
CAN Communication Cab Net
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U300041
CPU memory corrupted or
un-validated SW
downloaded
General Checksum Failure
Unit will do a reset and stay in boot mode. Re- programming will resolve.
EMC
Diagnostic Service 14. No additional action is needed.
Update SW
Electronic control unit
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U300045
CPU memory read/write error
Program Memory Failure
DTC itself does not affect any functionality. Functional impact depends on each specific case – what actual (EEPROM) data failed to read/write.
Data retention
Diagnostic Service 14. No additional action is needed.
Replace ECU
Electronic control unit
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U300046
Calculated checksum/signature does not match
stored
Calibration / Parameter Memory Failure
Calculated checksum/signature of CPU memory does not match
stored
EMC or wrong handling
Diagnostic Service 14. No additional action is needed.
Update SW
Electronic control unit
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U300049
Can tranceiver/driver failure
Internal Electronic Failure
DTC itself does not inhibit any functionality. Functional impact will be as result of can bus error.
CAN tranceiver error
Diagnostic Service 14. No additional action is needed.
Check cabling and connectors Replace ECU
Electronic control unit
Node
DTC ISO
FailureEvent
FTB_Name
FunctBehaviorDesc
PossibleRootCause
ProcedureEraseConfirmedDtc
ProposedWorkshopAction
ProprietaryName
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U30004B
Measured temperature > 95
degrees C
Over Temperature
Display and button illumination
reduced/switched off.
Ambient temperature too high
Diagnostic Service 14. No additional action is needed.
Check area around ECU for sources of heat. Replace ECU.
Electronic control unit
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U300094
Critical internal SW
error
Unexpected Operation
ECU will reset
Code error / assert
Diagnostic Service 14. No additional
action is needed.
Update SW
Electronic control unit
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U300316
Voltage < 15±1V
Circuit Voltage Below Threshold
If voltage TOO low, ECU operation will suffer.
Normal functionality will
deteriorate.
ECU incorrectly connected. Bad battery/generator.
Diagnostic Service 14. No additional action is needed.
Check supply cabling, battery and generator
Battery Power
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U300317
Voltage > 34±2V
Circuit Voltage Above Threshold
If voltage TOO high for TOO long, ECU may be damaged. Normal functionality will deteriorate.
ECU incorrectly connected. Bad battery/generator.
Diagnostic Service 14. No additional action is needed.
Check battery and generator
Battery Power
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U1FFF68
Truck is in Factory Mode.
Factory mode address parameter is set to value “1”
Event Information
No functionality affected
Whenever P1C54 (Shared Factory mode parameter) is set to TRUE, this DTC shall be set.
Unit not configured correctly when leaving factory.
Diagnostic Service 14. No additional action is needed.
Clear the factory mode parameter.
Factory Mode Active
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U114368
Too many (>29) DTCs with warning indicator bit set are active at the same time.
Event Information
No more DTCs will be reported in diagnostic fault message on CAN.
Maximum limit of DTC’s set in ECU
Diagnostic Service 14. No additional action is needed.
Analyze the other reported DTCs
DTC Notification Max Limit Reached