Scania fault code 1577
Code 1577 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
TMS Transmission Management System
Accelerometer, incorrect Z value
The control unit indicates an incorrect measurement value.
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BMU Battery Management Unit
Water valve V249 is overloaded
The load for operating the water valve is higher than expected. Pulse-width modulation (PWM) is not working.
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PCS
Timeout accelerometer Z-axis value
HW detection.
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