Scania MBS DTC 546 #Not implemented. Electrical error on CAN bus 5

MBS MBS vezérlőegység · Scania

546 kód (decimális). Egyes diagnosztikai eszközök hexadecimálisan mutatják: 0222.

Röviden

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.

Érvényes erre: MBS3 (MBS)

Mit jelent a Scania MBS 546 hibakód?

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.

Mi okozza a Scania 546 DTC kódot?

• 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.

Hogyan reagál a rendszer?

Functions dependent on information from CAN bus 5 are degraded, such as roof hatches and the HPAC.

Melyek a tünetek?

If equipped with electrical roof hatches and/or a HPAC, these may not work as intended.

Hogyan javítható a Scania MBS 546 hibakód?

  1. The result of the receiving and transmitting messages is evaluated.
  2. Check connector for CAN bus 5 on MBS.
  3. Check wiring for CAN bus 5:
  4. Measure the resistance (with the battery disconnected) between CAN-high and CAN-low.
  5. It should be close to 60 ohm (one 120 ohm termination resistor in each end of the CAN-bus).
  6. Measure the resistance (with the battery disconnected) between CAN-high on MBS and CAN-high on any other unit (e.g.
  7. MBS_x) on CAN bus 5.
  8. It should be close to zero ohm.
  9. Measure the resistance (with the battery disconnected) between CAN-low on MBS and CAN-low on any other unit on CAN bus 5.
  10. It should be close to zero ohm.

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