Scania fault code 546
Code 546 is used by 13 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
Post injection ontime too long, cylinder 2.
The error is detected when the post injection ontime, for either post1 or post2, has been consequtively too long for a period of time.
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VDT
Output signal
Short circuit to ground on output for control unit E754.
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COO Coordinator
Downhill speed control
The voltage in the downhill speed control circuit has assumed an impermissible value. The voltage value does not correspond to a permitted switch position.
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MBS
#Not implemented. Electrical error on CAN bus 5
The CAN-controller of CAN bus 5 has entered state bus-off, which indicates a communication error There is a short circuit on CAN bus 5.
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BCI
Configuration fault, Expansion unit E
The expansion unit is responding, but does not exist according to the vehicle configuration.
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LAS Locking and Alarm System
Motion sensor in the cab
Implausible values measured by the motion sensor.
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CMS
Unknown control unit
An unknown control unit has been detected.
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ALM
Micro switch upper storage compartment passenger side (truck)/micro switch A8 (bus), short circuit
The micro switch is short-circuited to earth.
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APS Air Processing System
Temperature sensor
The internal temperature sensor is faulty or has given a value outside the permitted range.
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ACS Articulation Control System
Proportional valve
Short circuit to ground or overloading in the proportional valve circuit.
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EST
Piston position sensor
The fault code is activated when the CAN message from the piston position sensor is implausible or incorrect.
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ESTA
Piston position sensor
The fault code is activated when the CAN message from the piston position sensor is implausible or incorrect.
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ACSX
Proportional valve
Short circuit to ground or overloading in the proportional valve circuit.
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