2023 BMW i4 Drivetrain Warning Fault 224188 TSB

Symptoms

Owners of affected 2023 BMW i4 vehicles may observe a Check Control message (CCM) on the instrument cluster. This message will state, "You can continue driving. Drivetrain” (00029). This warning is accompanied by fault code 224188, which indicates an issue with the accelerator pedal module, specifically that sensor 1 and sensor 2 signals are implausible. It's important to note that a drivability complaint may or may not be present alongside this 2023 BMW i4 drivetrain warning.

Fault Codes / DTCs

If your vehicle experiences the 2023 BMW i4 drivetrain warning, the following fault code will be stored:

Code	Description
224188	Accelerator pedal module, pedal sensor, sensor 1, sensor 2: Signals implausible

Cause

The root cause of the 2023 BMW i4 drivetrain warning and fault code 224188 is identified as faulty pin connections. Specifically, the low-voltage (12 V) wiring harness at the plug connector (N8*1B) to the Central Control Unit (CCU) has sporadic "signal fault" issues due to these poor connections.

Important Warnings and Safety Information

BMW has issued critical warnings regarding this issue and any work on high-voltage systems:

• Do not replace components unnecessarily: Replacing the CCU and/or the accelerator pedal module will not resolve this problem and is therefore not permitted. The issue lies with the wiring pin connections, not the components themselves.
• High-Voltage System Safety: Working on High-Voltage (HV) systems in BMW Group vehicles requires specialized training and certification. Only properly trained personnel who have passed applicable HV Technical Training Courses should perform repairs involving disconnecting or removing HV battery components. Unqualified persons performing such work risk severe injury or damage to the vehicle. Specific training courses like ST2324 High Voltage Drivetrain Systems and ST2325 for High Voltage Battery Systems are required for technicians.

Repair Procedure Summary

To address the 2023 BMW i4 drivetrain warning and fault code 224188, a specific repair procedure must be followed. First, a Vehicle Test should be performed. If fault code 224188 is confirmed to be stored, technicians must visually inspect the pins within the CCU's low-voltage plug connector (N8*1B).

If faulty pins are identified, they must be replaced. This involves using specialized BMW crimping tools to ensure proper connection. The specific contact pins (numbers 40, 41, 42, 53, 54, 55) for the CCU low voltage (12 V) wiring harness connector (N8*1B) are replaced with a new pin part number.

Required Tools or Parts

For the repair of the 2023 BMW i4 drivetrain warning, the following specialized tools and parts are required:

• Contact Pins: Part number 61 13 6 820 598 (bushing contact MLK 1.2 (0.50 mm²/AG.50 mm)), quantity 6.
• Crimping Tool Kit: BMW tool kit 61 4 320, which includes:
  • Crimping tool Die PN 61 4 328
  • Crimping Pliers PN 61 4 321

Claim Information

This repair is covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks or the BMW Certified Pre-Owned Program. The specific repair code for this action is 6111900700, described as "G26 BEV CC message: Drive system, stop carefully (wiring harness bushing contact)". Labor operations, such as 00 76 958 (Plusposition) or 00 76 313 (Main work), are used for claiming the repair of the low-voltage wiring harness between the CCU and the accelerator pedal module.

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Source: NHTSA ID: 11018728