Scania BMU fault codes
All 702 Scania BMU (Battery Management Unit) diagnostic trouble codes, with meaning, causes and how to fix them.
Control units:
BMU5BMU6 (RES)BMU6 (RESXA)BMU6 (RESXB)BMU6 (RESXC)BMU6 (RESXD)BMU6 (RESXE)BMU6 (RESXF)BMU6 (RESXG)BMU6 (RESXH)BMU6 (RESXI)BMU6 (RESXJ)BMU6 (RESXK)BMU7 (BMUA)BMU7 (BMUB)BMU7 (BMUC)BMU7 (BMUD)BMU7 (BMUE)BMU7 (BMUF)BMU7 (BMUG)BMU7 (BMUH)BMU7 (BMUI)BMU7 (BMUJ)BMU7 (BMUK) +5
Showing 1–60 of 702 codes
- 256hex 000100 Parameter fault
- 258hex 000102 TMS control unit has no CAN message
- 259hex 000103 Break, voltage class B from the propulsion battery
- 260hex 000104 Battery system in fault state after emergency shutdown
- 512hex 0200 Error in the ECU hardware memory
- 513hex 0201 Prohibited software operation
- 514hex 0202 Overloaded software
- 515hex 0203 Inconsistent storage of RAM information
- 516hex 0204 BMU control unit ID information is missing
- 517hex 0205 Operational data missing
- 518hex 0206 Function parameters missing
- 519hex 0207 Electrical fault on TMS-SUB-CAN
- 520hex 0208 CAN communication for TMS SUB CAN missing
- 522hex 020A Time-out in TMS CAN node
- 523hex 020B MGU CAN node timeout
- 544hex 0220 Timeout in direct current converter E84 (DCC) CAN node
- 560hex 0230 Electrical fault on RES SUB CAN
- 561hex 0231 CAN communication for RES-SUB-CAN missing
- 562hex 0232 Timeout in IBU CAN node
- 563hex 0233 CAN messages missing from RES sub data bus.
- 564hex 0234 Electrical fault, sub CAN BMU
- 610hex 0262 Fault in battery junction box
- 616hex 0268 Short circuit in battery cells
- 617hex 0269 Voltage too high in E83 propulsion battery cells
- 624hex 0270 Voltage too low in E83 propulsion battery cells
- 625hex 0271 Overloading of the propulsion battery E83
- 626hex 0272 Discharging the propulsion battery E83
- 627hex 0273 Propulsion battery, low state of charge
- 628hex 0274 Incorrect voltage supply for the IBU
- 629hex 0275 Prohibited temperature in the propulsion battery E83
- 630hex 0276 Poor temperature balance in propulsion battery
- 631hex 0277 Fault in pre-charging of the contactor unit
- 632hex 0278 Failed shutdown sequence for contactor unit
- 633hex 0279 Internal insulation fault in the propulsion battery
- 634hex 027A unused, available
- 635hex 027B unused, available
- 638hex 027E Fault in propulsion battery power supply
- 639hex 027F Fault in propulsion battery power supply
- 640hex 0280 Isolation measurement could not be performed
- 645hex 0285 Fault in the current sensor in the propulsion battery E83
- 646hex 0286 The measured value for the current sensor is outside the permitted range
- 656hex 0290 The heater is active in the shutdown mode
- 657hex 0291 The heater does not respond to activation attempts
- 658hex 0292 Cab heater active in off mode
- 660hex 0294 Cell short circuit
- 661hex 0295 The heater is overheated
- 662hex 0296 The propulsion battery E83 cell monitoring circuit is defective
- 663hex 0297 IBU software is overloaded
- 664hex 0298 There are issues with the propulsion battery hardware or a high temperature
- 665hex 0299 Fault in IBU sub system
- 773hex 0305 Coolant pump (M38/M82), fault in CAN communication
- 774hex 0306 Coolant pump (M38/M82) in the propulsion battery cooling system is not behaving properly
- 775hex 0307 Coolant pump (M83), CAN communication fault
- 776hex 0308 Coolant pump (M41/M85), CAN communication timeout
- 777hex 0309 Incorrect behaviour of the coolant pump in the direct current converter E84 (DCC) and inverter E82 (MGU) cooling system
- 784hex 0310 Coolant pump (M83) for cooling system, incorrect behaviour
- 785hex 0311 Coolant pump (M86), CAN communication fault
- 786hex 0312 Solenoid valve V194 for the propulsion battery cooling system is short-circuited to ground.
- 787hex 0313 Solenoid valve V194 for the propulsion battery cooling system
- 788hex 0314 Incorrect behaviour of the solenoid valve V194 for the propulsion battery cooling system