Telematic Control Unit (US): E60, E61, E63, E64, E90
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2005 BMW 645Ci, 2005 BMW 545i, 2005 BMW 530i, 2005 BMW 525i, and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.
Installation location
> E60 The Telematic Control Unit (TCU) is located on the left-hand side of the luggage compartment, on the wheel arch.
> E63, E64 The Telematic Control Unit (TCU) is located on the partition wall behind the left-hand rear seat.
> E61, E90, E91 The Telematic Control Unit (TCU) is located on the floor panel in the luggage compartment.
The illustration shows the E90. The TCU is fitted to the luggage compartment floor. Other control units may be fitted, depending on the vehicle's equipment.
TELEMATIC CONTROL UNIT (US) LEGEND
| Item | Description | Item | Description |
|---|---|---|---|
| 1 | Video module (EURO only) | 2 | Line compensator for aerials |
| 3 | Satellite tuner | 4 | Telematics control unit (TCU) |
| 5 | CD changer | 6 | Audio system (HiFi system or TOP-HiFi system) |
Construction
The Telematic Control Unit (TCU) has a modular construction and is fitted with the following features:
- Transmitter/receiver module (NAD, Network Access Device)
- GPS receiver
- Aerial selector for telephone aerial 1 (CDMA/AMPS) and emergency antenna
TELEMATIC CONTROL UNIT (US): E60, E61, E63, E64, E90 COMPONENT LEGEND
| Item | Description | Item | Description |
|---|---|---|---|
| 1 | 54-pin multi-pin connector | 2 | MOST interface |
| 3 | Connection for bluetooth antenna (if fitted) | 4 | Aerial connection for GPS aerial |
| 5 | Aerial connection for emergency antenna | 6 | Aerial connection for telephone aerial (CDMA/AMPS) |
| 7 | Telematic Control Unit (TCU) |
Pin assignments
E60, E61, E63, E64 UP TO 02/2005 PIN ASSIGNMENT FOR CONNECTOR X695, 54-PIN
| Pin | Type | Description |
|---|---|---|
| 1 | A | Positive wire to microphone |
| 2 | --- | --- |
| 3 | A | Switch-on signal for charging electronics in snap-in adapter (only in conjunction with optional accessory 633) |
| 4 | --- | --- |
| 5 | --- | --- |
| 6 | --- | --- |
| 7 | --- | --- |
| 8 | --- | --- |
| 9 | E | LoW-frequency signal for switching voice transmission on/off |
| 10 | E | LoW-frequency signal (earth) for switching voice transmission on/off |
| 11 | A | LoW-frequency signal to mobile phone |
| 12 | --- | --- |
| 13 | --- | --- |
| 14 | --- | --- |
| 15 | E | Crash signal from airbag control unit via safety and gateway module (SGM) |
| 16 | V | Terminal 30 power supply (auxiliary battery) |
| 17 | V | Terminal 30g-f power supply (because of pin loading, power supply is split between pin 17 and pin 18 |
| 18 | V | Terminal 30g-f power supply |
| 19 | A | Microphone negative wire |
| 20 | --- | --- |
| 21 | A | Screening for microphone |
| 22 | E | "Mobile phone engaged in snap-in adapter" signal |
| 23 | --- | --- |
| 24 | E | Signal from wheel speed sensor, front left |
| 25 | E | Signal from wheel speed sensor, front right |
| 26 | --- | --- |
| 27 | --- | --- |
| 28 | --- | --- |
| 29 | A | Wired portable serial IF TxD (P2K data bus) |
| 30 | E | Wired portable serial IF RxD (P2K data bus) |
| 31 | E | Signal from emergency call button |
| 32 | A | Signal to switch battery charger in base plate on/off |
| 33 | A | Wake-up wire for MOST bus (MOST wake-up) |
| 34 | A | Switch-on signal for line compensator |
| 35 | --- | --- |
| 36 | M | Terminal 31, earth |
| 37 | A | LoW-frequency signal, emergency loudspeaker, positive wire |
| 38 | M | LoW-frequency signal, emergency loudspeaker, negative wire |
| 39 | A | Screening for wired portable serial |
| 40 | --- | --- |
| 41 | --- | --- |
| 42 | --- | --- |
| 43 | --- | --- |
| 44 | --- | --- |
| 45 | --- | --- |
| 46 | E | Handsfree button for hands-free system (only in conjunction with optional accessory 633) |
| 47 | --- | --- |
| 48 | --- | --- |
| 49 | M | LoW-frequency signal, P2K, earth |
| 50 | A | Emergency call LED |
| 51 | --- | --- |
| 52 | A | Terminal 58g (locating light) |
| 53 | M | Terminal 31 earth (auxiliary battery) |
| 54 | M | Terminal 31, earth |
| A = Output | ||
| E = Input | ||
| M = Earth | ||
| V = Supply | ||
| For current specifications regarding pin assignments, please refer to BMW diagnosis system | ||
>E60, E61, E63, E64 FROM 03/2005: PIN ASSIGNMENT FOR CONNECTOR X695, 54-PIN > E90, E91 FROM START OF SERIES PRODUCTION PIN ASSIGNMENT FOR CONNECTOR X14133, 54-PIN
| Pin | Type | Description |
|---|---|---|
| 1 | E | Positive wire to microphone 1 |
| 2 | E | Positive wire to microphone 2 (if fitted) |
| 3 | A | Switch-on signal for charging electronics in snap-in adapter |
| 4 | --- | --- |
| 5 | --- | --- |
| 6 | --- | --- |
| 7 | --- | --- |
| 8 | --- | --- |
| 9 | --- | --- |
| 10 | --- | --- |
| 11 | --- | --- |
| 12 | --- | --- |
| 13 | --- | --- |
| 14 | --- | --- |
| 15 | E | Crash signal >E60, E61, E63, E64 up to 08/2005: from safety and gateway module (SGM) > E60, E61, E63, E64 from 09/2005: by the crash safety module (ACSM) > E90, E91: by the MRS control unit (multiple restraint system) |
| 16 | --- | --- |
| 17 | V | Terminal 30g-f power supply (because of pin loading, power supply is split between pin 17 and pin 18 |
| 18 | V | Terminal 30g_f power supply |
| 19 | A | Microphone 1 negative wire |
| 20 | A | Microphone 2 negative wire (if fitted) |
| 21 | A | Screening for microphone |
| 22 | --- | --- |
| 23 | --- | --- |
| 24 | E | Signal from wheel speed sensor, front left |
| 25 | E | Signal from wheel speed sensor, front right |
| 26 | --- | --- |
| 27 | --- | --- |
| 28 | --- | --- |
| 29 | --- | --- |
| 30 | --- | --- |
| 31 | E | Signal from emergency call button |
| 32 | --- | --- |
| 33 | A | Wake-up wire for MOST bus (MOST wake-up) |
| 34 | --- | --- |
| 35 | --- | --- |
| 36 | M | Terminal 31, earth |
| 37 | A | Emergency loudspeaker, positive terminal |
| 38 | M | Emergency loudspeaker, earth |
| 39 | --- | --- |
| 40 | --- | --- |
| 41 | --- | --- |
| 42 | --- | --- |
| 43 | --- | --- |
| 44 | --- | --- |
| 45 | --- | --- |
| 46 | E | Handsfree button for hands-free system |
| 47 | --- | --- |
| 48 | --- | --- |
| 49 | A | --- |
| 50 | A | Emergency call LED |
| 51 | --- | --- |
| 52 | --- | --- |
| 53 | --- | --- |
| 54 | M | Terminal 31, earth |
| A = Output | ||
| E = Input | ||
| M = Earth | ||
| V = Supply | ||
| For current specifications regarding pin assignments, please refer to BMW diagnosis system | ||
How it works
The TCU is connected to the MOST bus via the 2-pin connector. The 54-pin connector provides the connections to the vehicle electrical system, the base plate with snap-in adapter and the emergency call components.
The TCU provides the following functions:
- Telematic services
- Hands-free mode via bluetooth
- Voice recognition system
TCU with telematic services and mobile telephone
SIGNAL PATH LEGEND
| Item | Description | Item | Description |
|---|---|---|---|
| 1 | Transmitter and receiver | 2 | GPS satellite |
| 3 | Emergency call button | 4 | Telematic services |
| 5 | Transmitter and receiver module (NAD, ""Network Access Device"") | 6 | GPS receiver |
| 7 | Hands-free microphone | 8 | Emergency loudspeaker |
| 9 | Mobile phone, permanently installed (optional accessory 639 up to 02/2005) | 10 | Mobile phone, not permanently installed as it is bluetooth-compatible (optional accessory 633 up to 02/2005 and option 639 from 03/2005) |
| 11 | Line compensator (retrofit if customer so wishes) | 12 | Telephone aerial 2 |
| 13 | Telephone aerial 1 | ||
| Crash | Crash signal for automatic emergency call |