適用於: MBS3 (MBS)
Scania MBS 故障碼 546 是什麼意思？
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.
Scania DTC 546 的原因是什麼？
• Defect wiring of CAN-bus 5: - short circuit between CAN-high and CAN low. - short circuit between CAN-high and supply voltage. - short circuit between CAN-high and ground. - short circuit between CAN-low and supply voltage. - short circuit between CAN-low and ground. • Defect ECU unit(s) on CAN-bus 5.
系統會如何反應？
Functions dependent on information from CAN bus 5 are degraded, such as roof hatches and the HPAC.
有哪些症狀？
If equipped with electrical roof hatches and/or a HPAC, these may not work as intended.
如何修復 Scania MBS 故障碼 546？
- The result of the receiving and transmitting messages is evaluated.
- Check connector for CAN bus 5 on MBS.
- Check wiring for CAN bus 5:
- Measure the resistance (with the battery disconnected) between CAN-high and CAN-low.
- It should be close to 60 ohm (one 120 ohm termination resistor in each end of the CAN-bus).
- Measure the resistance (with the battery disconnected) between CAN-high on MBS and CAN-high on any other unit (e.g.
- MBS_x) on CAN bus 5.
- It should be close to zero ohm.
- Measure the resistance (with the battery disconnected) between CAN-low on MBS and CAN-low on any other unit on CAN bus 5.
- It should be close to zero ohm.
此資訊僅供參考。請務必遵循製造商的維修手冊及安全程序；如有疑問，請洽詢授權維修廠。