Scania fault code 1589
Code 1589 is used by 3 different Scania systems. Choose the control unit shown in your diagnostic tool:
TMS Transmission Management System
Rotational speed sensor for PTO EG Top - 5V supply out of range
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BMU Battery Management Unit
The pantograph activation switch does not work
- The activation signal from the switch is missing some time after it has been pressed. - For vehicles without switches: signal error.
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ELC Electronically controlled air suspension
Solenoid valve for raising the second tag axle
Open circuit or too low current consumption in circuit.
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