Scania fault code 512
Code 512 is used by 20 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Fuel temperature sensor, short circuit to battery or open circuit
The engine control unit has detected an abnormal voltage, indicating a short circuit to high battery voltage or a break in the circuit.
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TMS Transmission Management System
Accelerator pedal position, CAN message fault
The control unit indicates an interruption in the CAN messages received about the accelerator pedal position.
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BMU Battery Management Unit
Error in the ECU hardware memory
Detected errors in the control unit internal memory. An error check is carried out on the memories. The errors are detected via various methods for different types of memories.
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VDT
Output signal
Invalid configuration.
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COO Coordinator
Accelerator pedal sensor
The voltage in the accelerator pedal sensor circuit has been lower than permitted. The accelerator pedal sensor generates 2 separate output signals. The fault applies to the normal…
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MBS
Electronic control unit, internal memory fault
The control unit has detected an internal memory fault.
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DDU
Switch on steering wheel, pressed for 60 seconds
One of the switches on the steering wheel has been pressed for more than 60 seconds.
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MGU
Internal software fault
The MGU control unit has detected an internal software fault.
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CUV Visibility system
Control unit
A fault has been detected in the internal memory of the control unit.
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BCI
Expansion unit, internal memory
Fault in expansion unit internal memory.
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ICL Instrument Cluster
Button panel, steering wheel
One or more buttons in the steering wheel button panel has been depressed for more than 60 seconds.
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CMS
Control unit, internal memory
Fault in the control unit internal memory.
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ALM
Micro switch door lock driver's side (truck)/micro switch A1 (bus), short circuit
The micro switch is short-circuited to the voltage supply.
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ACS Articulation Control System
Control unit
Internal fault.
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EST
Control unit
Fault in the control unit memory.
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ESTA
Control unit
Fault in the control unit memory.
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TCC
The TCC control unit, fault in internal memory
Internal memory fault detected.
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SC
Digital tachograph card
The tachograph does not approve the driver's digital tachograph card in slot 1.
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DCU
Door control unit, internal fault
The door control unit indicates an internal memory fault.
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ACSX
Control unit
Internal fault.
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