Scania fault code 258
Code 258 is used by 12 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Mass flow sensor
The voltage in the circuit has been below the permitted level.
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TMS Transmission Management System
Clutch actuator, incorrect clutch position
The transmission management system, TMS, has detected that the clutch position requested from the clutch actuator, ECA, does not match the expected position.
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BMU Battery Management Unit
TMS control unit has no CAN message
There is no CAN message from the propulsion batteries to the TMS control unit.
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EMD
Intake air mass flow sensor T126
The voltage in the circuit has been below the permitted level.
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EME
Intake air mass flow sensor T126
The voltage in the circuit has been below the permitted level.
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EMO
Intake air mass flow sensor T126
The voltage in the circuit has been below the permitted level.
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VDT
Solenoid valve
Short circuit to battery.
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ELC Electronically controlled air suspension
Sensor signal from front axle level sensor.
The voltage on the input from the level sensor is outside the valid range (2.97V-5.25V).
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DDU
DDU overheating fault
Detection is performed by an internal sensor measuring SoCs temperature
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COMMUNICATOR Communicator (C200 / C300 / C400)
The SIM card not locked in the holder
There is no signal when the SIM card holder lock is in the lock position.
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EACS
Voltage class B
The voltage class B is too low and the electric motor cannot run at the requested speed.
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EQU
Supply voltage 12 V
The 12 V supply voltage is missing.
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