Scania fault code 18
Code 18 is used by 16 different Scania systems. Choose the control unit shown in your diagnostic tool:
EMS Engine Management System
The temperature in the exhaust gas aftertreatment system is too high
The temperature in the exhaust gas aftertreatment system is too high.
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EMD
Engine shutdown due to too high temperatures in the aftertreatment system.
ECU indicates that temperature in the aftertreatment system is too high.
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EME
Engine shutdown due to too high temperatures in the aftertreatment system.
ECU indicates that temperature in the aftertreatment system is too high.
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EMO
Engine shutdown due to too high temperatures in the aftertreatment system.
ECU indicates that temperature in the aftertreatment system is too high.
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VDT
Rotational speed sensor
Short circuit between sensors.
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COO Coordinator
Brake pedal sensor
The brake pedal sensor's two output signals (normal and redundant) have been implausible in relation to each other.
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ABS Anti-lock Braking System
Wheel speed
Deviating speed signal from the wheel on the left-hand side of the front axle.
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CUV Visibility system
Headlamp wiper and washer
Too high current consumption on control unit output. The current consumption on the control unit output has exceeded 5 A. On control unit versions with assembly part number 1482564…
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LAS Locking and Alarm System
Extra sensor 1
The voltage on the alarm control unit input has been below 3 V.
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ACC Automatic Climate Control
Battery voltage
The battery voltage is too high or too low.
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DIS
High supply voltage
The supply voltage is above 16 V.
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ACS Articulation Control System
Communication with the BMS control unit
Signal from BMS missing.
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BCS
Communication with the tachograph (TCO)
Communication with the tachograph (TCO) has been terminated.
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BWS
No CAN message
Fault on the CAN communication on the yellow CAN bus.
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CTR
No CAN message
Fault in the CAN communication.
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CTS
CAN bus
Loss of function.
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