ASTON MARTIN CLIENT SERVICES

QUARANTINE NOTICE
Reference number:

QN-30-1497

Issued: 21 April, 2021

Subject:

Connector Repair Process for Weak GPS Signal

Model(s):

DBX

VIN Range:

Refer to the separately published list of affected Vehicle Identification Numbers (VINs)

Applicable to:

All Dealers

Distribute to:

After Sales Manager
Executive Manager
Service Manager
Sales Manager

Warranty Staff
Technician(s)
Parts Staff

Reason for this Quarantine Notice
Before a vehicle is handed over to a customer you must do a workshop procedure to check the GPS satellite number
count is correct. If necessary, do the connector repair process to the applicable connector locations. This will prevent
interference and improve the GPS signal.
The workshop procedure has the parts that follow:
•

Part A - GPS Satellite Number Count

•

Part B – Connector Repair Process

Note: To complete Part A you must first have a mobile GPS satellite app to count the number of available satellites
to compare to the satellite count from the vehicle.

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QUARANTINE NOTICE

QN-30-1497

Part A - GPS Satellite Number Count
The GPS satellite number count must be done in clear weather conditions, away from tall obstructions such as buildings
or mountains.
1.

Drive the vehicle to a clear open area outside, but do not turn the engine off.

2.

In the infotainment menu select “Vehicle” and hold
the rotary selector down for 15 seconds (refer to
Figure 1).

Figure 1

3.

In the “Dealer Menu” scroll down and select
“Diagnose GNSS Antenna” (refer to Figure 2).

Figure 2
4.

Do a check of the “GPS Sat Number”
(refer to Figure 3) and confirm the number is correct
with a mobile GPS app.

Figure 3
5.

If the “GPS Sat Number” is more than 8 the workshop procedure is complete.

6.

If the “GPS Sat Number” is less than 8 road test the vehicle in a clear open space for 30 to 40 minutes.
Note: Monitor the position of the vehicle on the map. Make sure the map follows roads correctly and does
not move off the road or is slow to position.

7.

Do the check of the “GPS Sat Number” again. Confirm the number is correct with a mobile GPS app.

8.

If the “GPS Sat Number” is still less than 8 do Part B of the workshop procedure.

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QUARANTINE NOTICE

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Part B – Connector Repair Process
To identify the connectors that need to be reworked, refer to the DBX Splice and Connector references that follow in
Technical Hub:

DBX Connector References
System Views > 640300 - Head Unit > Central Display for connectors:
C-ref

Description

Splice and Connector View Harness

C23.3

Inline Centre Stack - Fascia (FAKRA)

Fascia/Centre stack Harness

C39.9

Inline Facia - HVAC Link (FAKRA)

Centre Stack Link Harness

M41.1

Instrument Panel - Display Module (DISP_C )

Centre Stack Link

M55.11

Head Unit Module (HU)

Centre Stack Link Harness

System Views > 640201 - Driver Information > DIM:
M42.2

Instrument Cluster - Module (IC)

Fascia Harness
Table 1

1.

Remove the instrument cluster (refer to Workshop Manual procedure 64.02.AA).

2.

Remove the infotainment display screen (refer to Workshop Manual procedure 64.02.BB).

3.

Remove the head unit (refer to Workshop Manual procedure 64.03.AG).

4.

Remove the HVAC switch pack (refer to Workshop Manual procedure 64.01.AK).

5.

Refer to the list of connectors in Table 1 and do the steps that follow.
Note: Only disconnect one terminal before you start the next terminal. This will make sure the terminals are
installed in the correct position.

6.

Remove the connector from the applicable
connector housing (refer to Figure 4).
Note: This image shows a connector before any
tape is installed.

Figure 4

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QUARANTINE NOTICE
7.

QN-30-1497

Install harness repair tape to the area shown on the
applicable cable.
Care must be taken not to damage the inner core
and no gaps are shown (refer to Figure 5).
Note: The harness repair tape must be installed
before the copper tape.

Figure 5
8.

Install copper tape to the area shown (refer to
Figure 6).
Make sure the copper tape is applied tightly and
neatly. Loose or untidy copper tape will prevent
correct installation. It is possible that the loose
copper tape will be compressed by the connector
and cause the repair to not correct the problem.

Figure 6
Note: Raise a SpotLight case and include images of the repaired connectors before you do steps 9 thru 15.
9.

Install the connector in the applicable connector housing.

10.

Do steps 6 through 9 for each connector listed in Table 1.

11.

Install the HVAC switch pack (refer to Workshop Manual procedure 64.01.AK).

12.

Install the head unit (refer to Workshop Manual procedure 64.03.AG).

13.

Install the infotainment display screen (refer to Workshop Manual procedure 64.02.BB).

14.

Install the instrument cluster (refer to Workshop Manual procedure 64.02.AA).

15.

Do a road test of the vehicle with the navigation system active for a minimum of 30 minutes. This is necessary to
calibrate the navigation GPS signal.

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QN-30-1497

Part Data
Description

Quantity

Harness Tape (roll) (included in wiring harness repair kit or local supply)

1

Copper Tape (roll) (to order start a SpotLight case)

1

Warranty Data
Procedure and Labour Time

Tier A
Description

Labour Time

GPS satellite number count

0.2

Tier B
Description
Connector repair process

Labour Time

ROT Code

6.05 hours

30.14.AA

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 Service Bulletin is written in
Simplified Technical English to ASD-STE100™.
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