Scania MBS DTC 522 #Not implemented. Electrical error on CAN bus 2

MBS Блок управления MBS · Scania

Код 522 (десятичный). Некоторые диагностические приборы показывают его в шестнадцатеричном виде как 020A.

Кратко

The CAN-controller of CAN bus 2 has entered state bus-off, which indicates a communication error. There is a short circuit on CAN bus 2.

Применяется к: MBS3 (MBS)

Что означает код неисправности Scania MBS 522?

The CAN-controller of CAN bus 2 has entered state bus-off, which indicates a communication error. There is a short circuit on CAN bus 2.

Что вызывает код DTC 522 Scania?

• Defect wiring of CAN bus 2: - 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 the CAN bus 2.

Как реагирует система?

Functions dependent on information from CAN bus 2 are degraded, meaning components connected to MBS expansion node A, B, C and D.

Какие симптомы?

Functionality connected to MBS expansion nodes A, B, C and D may not work as intended.

Как устранить код неисправности Scania MBS 522?

  1. Check wiring for CAN bus 2:
  2. Measure the resistance (with the battery disconnected) between CAN-high and CAN-low.
  3. It should be close to 60 ohm (one 120 ohm termination resistor in each end of the CAN-bus).
  4. Measure the resistance (with the battery disconnected) between CAN-high on MBS and CAN-high on any other unit (e.g.
  5. MBS) on CAN bus 2.
  6. It should be close to zero ohm.
  7. Measure the resistance (with the battery disconnected) between CAN-low on MBS(Master) and CAN-low on any other unit on CAN bus 2.
  8. It should be close to zero ohm.
  9. Trouble shoot CAN bus cable harness and connectors

Эта информация предназначена только для справки. Всегда следуйте руководству по ремонту производителя и правилам техники безопасности; в случае сомнений обратитесь в авторизованную мастерскую.

Код 522 в других системах Scania

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