Scania IBU DTC 97056 Cell monitoring circuit board, communication fault

IBU IBU control unit · Scania

Code 97056 (decimal). Some diagnostic tools show it in hexadecimal as 017B20.

In short

A CAN message is missing from at least one, but not all cell monitoring circuit boards.

Applies to: IBU2 (IBU)IBU2 (IBUA)IBU2 (IBUB)IBU2 (IBUC)IBU2 (IBUD)IBU2 (IBUE)IBU2 (IBUF)IBU2 (IBUG)IBU2 (IBUH)IBU2 (IBUI)IBU2 (IBUJ)IBU2 (IBUK)

What does Scania IBU fault code 97056 mean?

A CAN message is missing from at least one, but not all cell monitoring circuit boards.

What causes Scania DTC 97056?

Internal fault in the propulsion battery.

How to fix Scania IBU fault code 97056?

  1. - Clear the fault code.
  2. Turn the 15 voltage off and on with the starter key.
  3. If the fault code recurs:
  4. Check the internal cable harness between the IBU control unit and the cell monitoring circuit boards.
  5. Renew cable harness between the IBU control unit and the cell monitoring circuit boards.
  6. Renew the IBU control unit.
  7. Change the battery junction box.
  8. Renew the propulsion battery.

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.