wiring BMW 3 SERIES 2005 E46 CPT8000 Electrical Connectors And Wiring Diagrams Workshop Manual
[x] Cancel search | Manufacturer: BMW, Model Year: 2005, Model line: 3 SERIES, Model: BMW 3 SERIES 2005 E46Pages: 9, PDF Size: 0.84 MB
Page 1 of 9

--------------- BMW CPT8000 Training & Troubleshooting Manual --------------- 
 
Version 2.01           8/29/2001 
5.0  CPT8000 Electrical Connectors and Wiring Diagrams 
 
This section contains drawings of Electrical Connectors and information on Pin Configuration, Pin 
Numbers, Wire Colors and Pin Descriptions. 
  5.1    25 Pin D-Sub Connector to TCU Adapter Cable 
5.2A   Eject Box Wiring Harness – 18 Male Pin, Female ELO Connector 
5.2B   Factory Installed – 18 Female Pin, Male ELO Connector 
5.3  CPT8000 12-Pin Wiring Harness Connector 
5.4  CPT8000 26-Pin ELO Connector for E46 Convertible 
5.5  28-Pin Multilock TCU Connector 
5.6A   CPT8000 Wiring Diagram – All Models Except E46 
5.6B   CPT8000 Wiring Diagram – E46 Only 
  
Page 3 of 9

--------------- BMW CPT8000 Training & Troubleshooting Manual --------------- 
 
Version 2.01           8/29/2001 
5.2A    Eject Box Wiring Harness - 18 Male Pin, Female ELO Connector 
 
 
  Figure 1  - 18 Male Pin ELO Connector        Figure 2  - Connector 
 
This is a  female connector
, number X4545, with 18  male pins located at the end of the eject box 
wiring harness and mates with a  male connector
 containing 18 female pins at the end of the factory 
wiring harness that ends at the console.  It is used with all models equipped with the CPT8000.  Figure 
1 represents the connector with pin orientation and figure 2 is a drawing of the actual connector.  Wire 
colors may vary due to manufacturing variations. 
 
Pin #  Wire Color    Pin Description    Notes 
1   Orange     TXD 
2   None     Not Used 
3   White-Blue    RXD 
4   Gray     RX On/Off 
5   White-Gray    Jumper to Pin 9 
6   Brown     TX Audio 
7   White-Black    Logic Ground 
8   None     Not Used 
9   White-Gray    I-Bus 
10   None     Not Used 
11   White-Gray    Telephone On - In 
12   None     Not Used 
13   Orange     Hand Set Power Supply 
14   White-Gray     Telephone On - Out 
15   Yellow-Black    58G - Not Used 
16   White-Blue    Battery Feedback 
17   Brown     KL31 - Ground 
18   White-Black    Audio Ground  
Page 4 of 9

--------------- BMW CPT8000 Training & Troubleshooting Manual --------------- 
 
Version 2.01           8/29/2001 
5.2B    Factory Installed - 18 Female Pin, Male ELO Connector  
 
  Figure 1  - 18 Female Pin ELO Connector       Figure 2  - Connector 
 
This is a  male connector
, number X4545, with 18  female pins on the factory wiring harness ending at 
the console and mates with a  female connector
, with male pins.  It is used with all models equipped 
with the CPT8000.  Figure 1 represents the connector with pin orientation and Figure 2 is a drawing of 
the actual connector.  Wire colors may vary due to manufacturing variations. 
 
Pin #  Wire Color    Pin Description    Notes            
1   Blue      TXD 
2   White-Red    Reserved 
3   White-Green    RXD 
4   Yellow-Red    RX On/Off 
5   None     Not Used 
6   Blue-Green    TX Audio 
7   Yellow     Logic Ground 
8   Purple-Red    Ignition 
9   White-Gray-Yellow  I-Bus 
10   Red-Yellow    KL30 - B+ 
11   White-Yellow    Telephone On - In 
12   None     Not Used 
13   Orange     Hand Set Power Supply 
14   White-Gray     Telephone On - Out 
15   Gray-Red 
   or Gray-Yellow   58G - Not Used    5 Wagon = Gray-red 
16   White-Blue    Battery Feedback 
17   Brown     KL31 – Ground    5 Wagon = Brown-black 
18   White-Black    Audio Ground 
  
Page 5 of 9

--------------- BMW CPT8000 Training & Troubleshooting Manual --------------- 
 
Version 2.01           8/29/2001 
5.3   CPT8000 12-Pin Wiring Harness Connector 
 
 
        Figure 1A  - CPT8000 Wiring Harness Connector  Female Connector - 12 Male Pins 
 
        Figure 1B  - CPT8000 Wiring Harness Connector       Figure 2  - Connector  Male Connector - 12 Female Pins 
 
A  male connector
, number X400, with 12  female pins connects the factory-installed phone wiring 
harness to the vehicle's wiring.  It mates with a  female connector
, with 12 male pins that is part of the 
vehicle wiring.  It is used with all models equipped with the CPT8000 except for E46 which has the 
phone wiring harness wired directly with the vehicles main wiring harness.  Figures 1A and 1B above, 
represent the connectors with pin orientation and Figure 2 is a drawing of the actual connectors.  Wire 
colors may vary due to manufacturing variations. 
 
Pin #  Wire Color    Pin Description     Notes 
1    Red-Yellow    KL30 - B+ 
2   Purple-Red    Ignition 
3   Blue-Yellow    Mayday Switch - Emergency 
4   White-Gray-Yellow  I-Bus 
5   Gray-Red    58G 
6   White     Mayday Switch - LED 
7   Brown-Black    KL31 - Ground 
8   White-Brown    Mute 
9   Black-White    Speaker – Positive 
10   Black-Brown    Speaker – Negative 
11   White-Green    Telephone On 
12   Yellow Brown   Mayday Switch-Roadside Assistance  
Page 8 of 9

---------- BMW CPT8000 Training & Troubleshooting Manual ---------- 
 
Versio n 2 .01        8/29/2001 
5.6A    CPT8000 Wiring Diagram – All Models Except E46 
 
TCU 28 Pin MultilockSPKR Pos.SPKR Neg.Ent. MuteKL30 (A+)KL31 (Gnd)KL30 (A+)KL31 (Gnd)Phone SCI TXDReserved (MDI)Phone SCI RXDTx AudioRx On/OffLogic GndKLRI-BusLED OutputExt B+Tel OnEmer. ButtonBatt FdbkAnalog GndRoadside ButtonMic. Neg.Mic. Pos.ShieldNot UsedNot UsedNot Used
B11B10A3A16B6A10A9B9B3B12B4A15A5A13A14A6A1A11B2A12A4A8A7A2B5B7B8J1B1
AssistKL58gLEDEMER.KL31not used
643215
YLW/BRNGRY/REDWHTBLU/YLWBRN/BLKN/C
Mayday Switch
25 Pin D-Sub Connector to
TCU 28 Pin Multilock Connector Adapter Cable
SPKR. Neg.Spkr. Pos.Ent. MuteKL30 (B+)KL30 (B+)KL31 (Gnd)TXDKL31 (Gnd)ReservedRXDRx On/OffTX AudioLogic GndKLRI-BusLEDHandset Power SupplyEmergencyBatt FdbkAnalog Gnd.RoadsideMic. Neg.Mic. Pos.Shield Gnd
247982015141361181222252341025191117316
Tel On
21
TCU
25 Pin D-Sub X18500
To TCU H-38
RXDTXDRX on-offTX AudioLogic GNDBatt. FdbkMan. TestNot UsedNot UsedNot UsedAudio GndRF GndRFNot Applicable
151312113218976451410
Timeport 
TM
Handset 101043
ReservedTXDRXDNot UsedTX AudioLogic GndNot UsedNot UsedNot UsedNot UsedExt. B+Man. TestNot UsedHandset Power SupplyGndAudio GndBatt FdbkEject Box A117
Handset Power
Supply
RX on-off
R
ReservedTXDRXDNot UsedTX AudioLogic GndI-BUSKLRB+ (KL30)Tel On (In)Not UsedTel On (Out)KL58GBatt FdbkHandset Power
SupplyAudio GndGnd (KL31)18 Pin ELOX4545BRX on-offConnector in Console WS/SW
BRWS/BLORWS/GRWS/GRBRWS/SWGR
WS/BLOR
SW /W S
Spk
9
Spk
10Mute
8 B+
1Gnd
7
58
5
Tel on
11
Emer
3IBus
4 KLR
2LED
6 Road
12
12 Pin Vehicle Connector - X400
SW /BR
WS/BR
RT/GE Incl.Pins 4 & 16
BR/SW  Incl. Pins 3 & 17
BL
WS/RT
W S/GN or GN/RT
GE/RT
BL/GN
GE
VI/RT
WS/SWWS/GR/GEOR
WS/GR
BL/GE
WS/BL
GE/BR
WS/GR RT/GE BL
WS/RTWS/GN or GN/RTGE
VI/RT
WS/GE
OR
GE/RT
BL/GNWS/BLBR/SW
WS/SWGR/RT or GR/GE
SW/WS
SW/BR
WS/BR RT/GE
BR/SW
GR/RT
WS/GE
BL/GE
WS
VI/RT or VI/WS
WS/GR/GE
GE/BR
WS/GE
RT/GE
BR/SW
A
3
1
2Tel
Gnd
B+14 Pins, Only 3 UsedCompensator
J01039
OR
W /O Compensator
W ith Compensator
Note:   10 K     Resistance
Between RF Connector and
Center Wire on Eject Box RF Cable
BR/W S or GNGE/SW or WS
BR/SW  or SW
3
1
2
BR/WS or SWWS or GE
SW  or Clear
3
1
2
X4221 X18507
A
Continued Above at Top of Diagram
Ω
SW-Black
BR-Brown
RT-Red
GE-Yellow
GN-GreenBL-Blue
VI-Violet
GR-Gray
WS-White
OR-OrangeColor Abbreviations
Note:
 Some wire
colors may be
different than shown
due to manufacturing variations
RF
Cable
Coil Cord Wiring
Compensator Cable
Part of Compensator Kit
Spkr wires
are twisted
MIC
WS
3
1
2 3
1
2
R = 33 K
Ω
123456789101112131415161718
WS/GR/GE
BMW CPT8000 All models Except E46 (version 2.01)
Note: Some wire colors may
be different than shown due
to manufacturing variations. 
Page 9 of 9

---------- BMW CPT8000 Training & Troubleshooting Manual ---------- 
 
Versio n 2 .01        8/29/2001 
5.6B    CPT8000 Wiring Diagram – E46 Only 
TCU 28 Pin MultilockSPKR Pos.SPKR Neg.Ent. MuteKL30 (A+)KL31 (Gnd)KL30 (A+)KL31 (Gnd)Phone SCI TXDReserved (MDI)Phone SCI RXDTx AudioRx On/OffLogic GndKLRI-BusLED OutputExt B+Tel OnEmer. ButtonBatt FdbkAnalog GndRoadside ButtonMic. Neg.Mic. Pos.ShieldNot UsedNot UsedNot Used
B11B10A3A16B6A10A9B9B3B12B4A15A5A13A14A6A1A11B2A12A4A8A7A2B5B7B8J1B1
AssistKL58gLEDEMER.KL31not used
643215
YLW /BRNGRY/REDWHTBLU/YLWBRN/BLKN/C
Mayday Switch
26 Pin ELO Connector to
TCU 28 Pin Multilock Connector Adapter Cable
SPKR. Neg.Spkr. Pos.Ent. MuteKL30 (B+)KL30 (B+)KL31 (Gnd)TXDKL31 (Gnd)ReservedRXDRx On/OffTX AudioLogic GndKLRI-BusNot UsedHandset Power SupplyNot UsedBatt FdbkAnalog Gnd.Not UsedMic. Neg.Mic. Pos.Shield Gnd
247982015141361181222252341025191117316
Tel On
21
TCU
26 Pin ELO
X695
RXDTXDRX on-offTX AudioLogic GNDBatt. FdbkMan. TestNot UsedNot UsedNot UsedAudio GndRF GndRFNot Applicable
151312113218976451410
Timeport 
TM
Handset 101043
ReservedTXDRXDNot UsedTX AudioLogic GndNot UsedNot UsedNot UsedNot UsedExt. B+Man. TestNot UsedHandset Power SupplyGndAudio GndBatt FdbkEject Box A117
Handset Power
Supply
RX on-off
R
ReservedTXDRXDNot UsedTX AudioLogic GndI-BUSKLRB+ (KL30)Tel On (In)Not UsedTel On (Out)KL58GBatt FdbkHandset Power
SupplyAudio GndGnd (KL31)18 Pin ELOX4545BRX on-offConnector in Console WS/SW
BRWS/BLORWS/GRWS/GRBRWS/SWGR
WS/BLOR
RT
Pins 4 & 16BR
Pins 3 & 17
BL
WS/RT
WS/GN
GE/RT
BL/GN
GE
VI
WS/SWWS/RTBL/GE
GR/RT
GR/GN
GR/RT RT BL
WS/RTWS/GNGE
VI
WS/GE
BL/GE
GE/RT
BL/GNGR/GN BR
WS/SWGR/RT or GR/GEWS/GE
RT
BR
3
1
2 Tel
Gnd
B+14 Pins, Only 3 UsedCompensator
J01039
OR
W /O Compensator
With Compensator
Note:   10 K     Resistance
Between RF Connector and
Center Wire on Eject Box RF
Cable
WSBR/W S
BR/SW
3
1
2
BR/W S or SWWS or GE
SW  or Clear
3
1
2
X4221 X18507
A
Continued Above at Top of Diagram
Ω
SW-Black
BR-Brown
RT-Red
GE-Yellow
GN-GreenBL-Blue
VI-Violet
GR-Gray
WS-White
OR-OrangeColor Abbreviations
Note:
 Some wire
colors may be
different than shown
due to manufacturing
variations
RF
Cable
Coil Cord Wiring
Compensator Cable
Part of Compensator Kit
Spkr wires (pin 19 & 25) are twisted
MIC
3
1
2 3
1
2
R = 33 K
Ω
123456789101112131415161718
WS/RT
BMW CPT8000 E46 (Version 2.01)
Not Used
26
Vehicle Audio
(SW )
(GE)
 (SW )
A
Note: Some wire colors may be different than
shown due to manufacturing variations.