Dynamic Stability Control (DSC) Unit Does Not Respond After Programming (SI B34 01 21)
Publication date: 2021-01-26Reference number: SI B34 01 21
DYNAMIC STABILITY CONTROL (DSC) UNIT DOES NOT RESPOND AFTER PROGRAMMING
TECHNICAL SERVICE BULLETIN
| BMW: | F90 M5 Sedan July 1, 2020 - January 29, 2021; G30 5 Series Sedan July 1, 2020 - January 29, 2021 |
SITUATION
After programming the vehicle using ISTA, the DSC control unit does not respond.
Or:
In the case of a BMW Remote Software Upgrade, the customer gets a Check Control message:
- "BMW Remote Software Upgrade failed. Vehicle is not operational. Please call BMW Roadside Assistance."
Vehicles from 1-Level 1-20-07-5xx to older than 1-20-11-550 are affected.
CAUSE
Weakness in the DSC processor.
CORRECTION
The fault is rectified with ISTA 4.28.1x which is expected to be available at the end of February (pending verification).
PROCEDURE
If you have the situation noted above, until the February software update becomes available:
- Perform a battery reset; and
- Repeat programming and select DSC manually to "force" the programming
If necessary:
- Replace the control unit if it is still unresponsive after the reprogramming attempt
PARTS INFORMATION
Only if applicable, obtain and confirm the part numbers for your specific vehicle by entering the chassis number in either ETK or AIR which takes into account specific equipment and/or options.
| Part Number | Description | Quantity |
|---|---|---|
| Refer to ETK | Repair kit for DSC/DXC control unit | 1 |
WARRANTY INFORMATION
Vehicles that are already in the workshop, in conjunction and after performing a prior programming and encoding procedure (Campaign or normal repair)
Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks or the BMW Certified Pre-Owned Program as applicable below.
| Defect Code: | Refer to AIR | Claim with the defect code that applies to the initial/previous repair work that necessitated this additional work procedure to be performed | |
|---|---|---|---|
| Labor Operation | Description | Labor Allowance | |
| 61 20 900 | Disconnecting and connecting battery ground lead | Refer to AIR | |
| And: | |||
| 61 00 731 | Additional work after 1st termination when programming/encoding | Refer to AIR | |
And, if required:
| Labor Operation | Description | Labor Allowance |
|---|---|---|
| 34 52 519 | Replacing the DSC control unit | Refer to AIR |
| And: | ||
| 61 00 732 | Additional work after 2nd termination when programming/encoding | Refer to AIR |
Or, when the:
Vehicle arrives after a failed BMW Remote Software Upgrade
Vehicle with an open programming and encoding Technical Campaign repair
| Defect Code: | Refer to AIR/SIB | Programming and Encoding Technical Campaign Repair | |
|---|---|---|---|
| Labor Operation | Description | Labor Allowance | |
| 61 20 900 | Disconnecting and con necting battery ground lead | Refer to AIR | |
| And: | |||
| Refer AIR/SIB | Programming/encodin g control unit(s) (Main or Plus) | Refer to AIR/SIB | |
| And, if necessary: | |||
| 61 00 731 | Additional work after 1st termination when programming/encoding | Refer to AIR | |
And, if required:
| Labor Operation | Description | Labor Allowance |
|---|---|---|
| 34 52 519 | Replacing the DSC control unit | Refer to AIR |
And, depending on the above:
| Labor Operation | Description | Labor Allowance |
|---|---|---|
| 61 00 731 | Additional work after 1st termination when programming/encoding | Refer to AIR |
| Or: | ||
| 61 00 732 | Additional work after 2nd termination when programming/encoding | Refer to AIR |
Or:
Vehicles without an open programming and encoding Technical Campaign repair
Covered under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks or the BMW Certified Pre-Owned Program as applicable below.
| Defect Code: | 3452101500 | DSC control unit Permanent malfunction | |
|---|---|---|---|
| Labor Operation | Description | Labor Allowance | |
| 61 20 900 | Disconnecting and connecting battery ground lead | Refer to AIR | |
| And: | |||
| 00 00 006 | Performing vehicle test (with vehicle diagnosis system - checking faults) (Main work) | Refer to AIR | |
| Or: | |||
| 00 00 556 | Performing vehicle test (with vehicle diagnosis system - checking faults) (Plus work) | Refer to AIR | |
| And: | |||
| 61 21 528 | Support voltage of the vehicle electrical system/recharge vehicle electrical system battery | Refer to AIR | |
| And: | |||
| 61 00 730 | Programming/encoding control unit(s) | Refer to AIR | |
| And, if necessary: | |||
| 61 00 731 | Additional work after 1st termination when programming/encoding | Refer to AIR | |
If you are using a Main labor code for another repair, use the Plus code labor operation 00 00 556 instead of 00 00 006.
And, if required:
| Labor Operation | Description | Labor Allowance |
|---|---|---|
| 34 52 519 | Replacing the DSC control unit | Refer to AIR |
And, depending on the above:
| Labor Operation | Description | Labor Allowance |
|---|---|---|
| 61 00 731 | Additional work after 1st termination when programming/encoding | Refer to AIR |
| Or: | ||
| 61 00 732 | Additional work after 2nd termination when programming/encoding | Refer to AIR |
Refer to AIR for the corresponding flat rate unit (FRU) allowance.
Programming and Encoding the Vehicle Control Units (RO and Claim Comments Required)
The programming procedure automatically reprograms and encodes all vehicle control modules which do not have the latest software I-level. If one or more control module failures occur during this programming procedure:
- Please claim this consequential control module related IRAP recovery procedure (when applicable as required)/repair work under the defect code listed in this bulletin with the applicable AIR labor operations.
Please explain this additional work (The why and what) on the repair order and in the claim comments section
For control module failures that occurred prior to performing this programming procedure:
- When covered under an applicable limited warranty, claim the applicable test plan and the corresponding control module-related repair work using the applicable defect code and labor operations in AIR (including diagnosis).
As applicable to your center, please refer to SI B01 01 20 or B01 07 20 for claiming your diagnosis work time, job/repair work time (WT), RO/Claim WT and/or repair explanation procedures.
QUESTIONS REGARDING THIS BULLETIN
| Technical inquiries | Submit feedback at the top of this bulletin |
| Warranty inquiries | Submit an IDS ticket to the Warranty Department or use the chat available in the Warranty Documentation Portal |
| Parts inquiries | Submit an IDS ticket to the Parts Department |