2010-2020 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 266
Telematics Control Unit (TCU) - Diagnostic Information
SI B 84 12 08
Communication Systems
June 2009
Technical Service
This Service Information bulletin supersedes SI B84 12 08 dated November 2008.
[NEW] designates changes to this revision
SUBJECT
TCU Symptom Diagnosis
MODEL
E82, E88 (1 Series) with Premium Package (ZPP) or BMW Assist (SA 639)
E90, E91, E92, E93 (3 Series) with Premium Package (ZPP) or BMW Assist (SA 639)
E60, E61 (5 Series)
E63, E64 (6 Series)
E65, E66 (7 Series) from 3/2005
E70 (X5) with Premium Package (ZPP) or BMW Assist (SA 639)
E71 (X6) with Premium Package (ZPP) or BMW Assist (SA 639)
[NEW] F01, F02 (7 Series)
SITUATION
[NEW] With the release of ISTA Technical Data D2.9.0, TCU (Telematics Control Unit) symptom diagnosis is available, which makes it possible to
diagnose a customer complaint related to the following areas:
^ Programming and coding
Bluetooth telephone systems
^ Hands-free voice quality and audio output
^ Snap-in adapter and eject box
^ Telematics functions
CAUSE
The TCU is a complex control module with a large number of possible fault profiles. This added diagnosis via symptom troubleshooting enhances
the ability to properly diagnose the "symptom" on the vehicle, rather than just the fault codes that are stored, if any. This ensures a more reliable
diagnosis the first time.
INFORMATION
The following is a list of all symptoms which are available in the test plan. Some symptoms may not be available for all vehicles. Some symptoms
may not pertain to features which are available in this market.
^ "Programming and encoding of the TCU is not possible or aborts"
^ "Only E65. The customer has lost the Bluetooth passkey"
^ "The mobile phone cannot be connected to the vehicle"
^ "After switching on terminal R, the Bluetooth snap-in adapter is not automatically reconnected with the vehicle"
^ "Implausible response of the telephone system on call waiting, brokering, telephone conference"
^ "After calling a phone number that is engaged (busy), no call can be placed for some time. Shortly thereafter, 'terminated' appears on the Control
Display"l Display"
^ "The telephone call is terminated against the user's wishes and an inappropriate text message is displayed in the Control Display"
^ "The person on the terrestrial side (i.e., telephone on the outside of the vehicle) cannot understand the person in the vehicle (only Bluetooth
2010-2020 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 267
mobile phone)"
^ "The person in the vehicle cannot understand the person on the terrestrial side (i.e., telephone outside of the vehicle, only Bluetooth mobile
phone)"
^ "The telephone is not output across the loudspeakers in the hands-free mode"
^ "Poor voice quality (call via hands-free system)"
^ "Sporadic call interruptions"
^ "When the vehicle is started during an active call, the call is lost for approximately 20 seconds"
^ "The conversational partner outside the vehicle hears an echo of his own voice (call via hands-free system)"
^ "When the mobile phone is placed in the snap-in adapter, the displayed signal strength falls or disappears"
^ "The mobile phone engaged in the snap-in adapter is not charged or only partially charged"
^"The telephone book is only partially transferred"
^ "An SMS is not transferred from the mobile phone to the display"
^ "General malfunction when Assist services are used"
^ "BMW Assist without function in the border zone"
^ "The status bar still displays foreign network providers, even when far away from the border"
^ "The Check Control message 'Fault in SOS emergency call system' is displayed"
^ "When BMW Online is started, the message 'the telephone is already being used by BMW Assist service' appears, although the vehicle user has
not started a BMW Assist service"
^ "Initialization of Telematics services cannot be started"
^ "Initialization of BMW Assist services can be selected, but the status bar shows no progress"
^ "The data are not transferred for a BWM Assist call"
^ "The position data are not transferred for a BMW Assist call, or only transferred imprecisely"
[NEW] PROCEDURE USING ISTA D2.13.0 OR HIGHER
1. It is always important to try and duplicate the customer complaint first.
2. These test plans are only valid using compatible handsets.
3. [NEW] Using ISTA D2.13.0 or higher, perform a vehicle test on the vehicle and troubleshoot any relevant faults.
4. Select "Display fault memory".
5. Select "Fault pattern".
6. Select "System Oriented".
7. Select "8400 Telecommunication".
8. Select "840001 Fault-pattern catalogue, telephone system".
9. Select "Accept fault pattern" and "Calculate test plan".
10. [NEW] Select "ABL B8400-00361-TCU MOST fault patterns, telephone systems". For the F01 or F02, select "ABL AT8400_FB_TCU-fault
patterns, TCU telematics control unit".
11. Continue in the test plan until diagnosis is finished. Note any "DIAGCODE" that is displayed in the test plan.
12. Please report any errors in the test plan via Diagnosis Feedback. Refer to SI B07 06 08 for more information.
WARRANTY INFORMATION
2010-2020 BMW 550i Sedan (E60) V8-4.8L (N62TU) Page 268
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