ASTON MARTIN CLIENT SERVICES

SERVICE BULLETIN
Reference number:

SB-44-1552

Issued: 11 August, 2021

Subject:

Flash the Electronic Power Steering Module (EPS)

Model(s):

DBX

Applicable to:

All Dealers

Distribute to:

After Sales Manager
Executive Manager
Service Manager
Sales Manager

Warranty Staff
Technician(s)
Parts Staff

Reason for this Service Bulletin
Aston Martin has released a software update for the Electronic Power Steering module (EPS) that decreases steering
vibration on rough road surfaces.
If a customer complains of steering vibration and noise, do the workshop procedure that follows to correct this problem.

Workshop Procedure
CAUTIONS:

CONNECT THE AMDS 2.0 EQUIPMENT TO AN ELECTRICAL SUPPLY WHEN YOU DO THE
PROCEDURE THAT FOLLOWS. IF THE LAPTOP BATTERY VOLTAGE DECREASES DURING THE
SOFTWARE UPDATE, THE UPDATE CAN FAIL AND CAN CAUSE DAMAGE TO THE MODULE.
YOU MUST CONNECT A BATTERY CHARGER TO THE VEHICLE BEFORE YOU DO DIAGNOSTIC
PROCEDURES. IF THE VEHICLE BATTERY VOLTAGE DECREASES DURING THE PROCEDURE, THE
SOFTWARE UPDATE CAN FAIL AND CAN CAUSE DAMAGE TO THE MODULE.

Notes:

Make sure that the AMDS 2.0 software has updated to the latest version. The AMDS 2.0 software will
need a good Internet connection (minimum broadband speed of 2 Mbit/second) to make sure that
the software is updated correctly.
A high output battery charger (minimum of 80 A) is necessary to meet the demand of the radiator
cooling fan. The battery charger must also be compatible with Absorbent Glass Mat (AGM) type
batteries.

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SERVICE BULLETIN

SB-44-1552

1.

Set the ignition to on but do not start the engine.

2.

Connect the Vehicle Communication Interface (VCI) to the vehicle by using the Diagnostic Link Cable (DLC).

3.

Start the AMDS 2.0 software and, if necessary, update to the latest version.

4. Select “Flash” (refer to Figure 1).

Figure 1

5. Select the “EPS” module then click “OK” (refer to
Figure 2).

Figure 2

6. Select “Flash Download” (refer to Figure 3).

Figure 3

7.

When the software update is complete, close the “Flash” window.
Note: The update is complete when “Post-programming sequence completed OK. VCI Disconnected. DRVU
reset OK” is shown.

8. Clear any Diagnostic Trouble Codes (DTCs) stored for the “EPS” module.
9. Set the ignition to off.
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SERVICE BULLETIN

SB-44-1552

10. Set the ignition to on but do not start the engine.
11. In the “DTC Read” window select the EPS module
then select “Pt. Numbers”.
Do a check and make sure the software patch level is:
21-26-8
Do a check and make sure the ZF software ID is:
01) A28_A00_D_32_00 (refer to Figure 4).

Figure 4

12. Make sure there are no DTCs stored for the “EPS” module.
13. Set the ignition to OFF.
14. Disconnect the (VCI) from the vehicle and shut down AMDS 2.0.

Warranty Data
Procedure and Labour Time
Description

Labour Time

Flash the EPS module

0.2 hours

If you have any questions related to this document, please refer to the 'Contact Us' link on this webpage,
or contact your local Dealer or After Sales Manager.
The English version of this document is written in
Simplified Technical English to ASD-STE100™.

11 August, 2021

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