2022-2023 BMW iX CCU Fan Fault SIB 61 26 23

Symptoms

Owners of 2022-2023 BMW iX M60 Sports Activity Vehicles may notice erroneous fault entries related to the electric fan (E-FAN) within the Combined Charging Unit (CCU). This BMW iX CCU fan fault can sometimes be accompanied by a yellow Check Control message (CCM) on the instrument cluster stating, "Visit BMW workshop". This message might disappear after the vehicle is restarted.

Fault Codes / DTCs

Technicians may find the following erroneous fault codes stored in the Combined Charging Unit (CCU):

• BA0072: "electric fan, shutdown path test: failed"
• 224F8F: "Feature: Service requirements coming soon"

Cause

The root cause of these erroneous fault entries and the BMW iX CCU fan fault is an error within the Combined Charging Unit (CCU) software itself. This software error leads to incorrect fault codes being stored.

Important Warnings for Owners

BMW emphasizes critical safety warnings regarding work on High-Voltage (HV) systems on BMW Group vehicles:

• "Only properly trained personnel, who passed all applicable HV Technical Training Courses, should perform repairs which require disconnecting, or removal of High Voltage battery components on any Hybrid or Electric Vehicle. Work performed on High Voltage systems by unqualified persons may result in severe injury or damage to the vehicle."
• "High Voltage Battery removal and rework can ONLY be performed by a High-voltage Certified Technician with a HV Battery Certification level corresponding to a specific Electric or Hybrid vehicle."
• For Generation 5 Vehicles like the BMW iX, "it is NOT allowed for non HV certified technicians to work on the high voltage system." Specific training, such as "ST2324 High Voltage Drivetrain Systems" and "ST2325 for High Voltage Battery Systems," is required.
• During the programming procedure, technicians are instructed to "Do NOT plug in the high-voltage battery charger."

Repair Procedure Summary

The correction for the BMW iX CCU fan fault involves programming the Combined Charging Unit (CCU). This is achieved by updating the complete vehicle using ISTA 4.43.4x software, released October 12, 2023, to I-level 1020-23-11-520 or higher. This process ensures that all programmable control modules that do not have the latest software are automatically reprogrammed and coded.

Before programming, a BMW-approved 12 Volt battery charger/power supply (SI B04 23 10) must be connected. The procedure involves following the Measures Plan, carrying out a vehicle test, and deleting any fault memory if required. After programming, the 12 Volt battery charger/power supply should be disconnected. No specific parts are required for this repair, as it is a software update.

Owner Action

If you own a 2022-2023 BMW iX M60 Sports Activity Vehicle and are experiencing the "Visit BMW workshop" message or suspect a BMW iX CCU fan fault, you should contact your authorized BMW workshop. The service action, identified by SIB 61 26 23, will update your vehicle's software to resolve the issue. This procedure is typically performed free of charge under warranty for qualifying vehicles.

Claim Information

For service centers, the repair code for this service action is 0061140800, for "i20 Program Combined Charging Unit (CCU)". Reimbursement for this Service Action will be via normal claim entry utilizing the work package information provided in the bulletin, referencing SIB B61 26 23. Only one flat rate labor operation code can be used for claim submission.

Specific labor operations include:

• Work Pkg #1 (00 75 618): Programming and encoding the vehicle control units, including a vehicle test (9 FRU).
• Work Pkg #2 (00 75 619): For when programming and encoding was performed in conjunction with another campaign/repair (1 FRU).
• Work Pkg #3 (00 75 094): Main work for programming and encoding vehicle control units, including a vehicle test (11 FRU).
• Work Pkg #4 (00 75 095): Main work for when programming and encoding was performed in conjunction with another campaign/repair (1 FRU).

---

Source: NHTSA ID 10244503