2004 BMW 3 SERIES battery

--------------- BMW CPT8000 Training & Troubleshooting Manual ---------------

Version 2.01 8/29/2001
5.1 25 Pin D-Sub Connector to TCU Adapter Cable


Figure 1 - Looking into 25 pin D-Sub Connector Figure 2 - Connector

This is a male connector
, number X18500, comprised of 25 female pins and mates with a female
connector, with 25 male pins, on the TCU adapter cable. 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 Yellow-Red RX On/Off
2 White Mayday Switch - LED
3 Brown-Black KL31 - Ground
4 Red-Yellow KL30 - B+
5 Purple-Red Ignition Sense M5 = Purple
6 Blue-Green TX Audio
7 White-Blue Battery Feedback
8 Orange Hand Set Power Supply
9 Blue-Yellow Mayday Switch - Emergency
10 White-Brown Entertainment Mute
11 Blue TXD
12 White-Red Reserved
13 Yellow-Brown Mayday Switch - Roadside Assistance
14 Green Microphone – Negative 5 Wagon = Brown-white
15 Yellow-Black Microphone – Positive 5 Wagon = White
16 Red-Yellow KL30 - B+
17 Brown-Black KL31 - Ground
18 White-Green RXD
19 Orange Speaker – Positive M5 = Blue-black, 5 Wagon = Black-white
20 Black Shielded Ground to Microphone
21 White-Gray Telephone On
22 White-Gray-Yellow I-Bus
23 Yellow Logic Ground
24 White-Black Analog Ground
25 Brown-Yellow Speaker – Negative M5 = Blue-brown, 5 Wagon = Black-brown

--------------- 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

--------------- 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

--------------- BMW CPT8000 Training & Troubleshooting Manual ---------------

Version 2.01 8/29/2001
5.4 26 Female Pin, Male ELO Connector for E46 Convertible

Figure 1 - 26 Female Pin ELO Connector Figure 2 - Connector

This is a male connector , number X0000, with 26 female pins and mates with a female connector
with 26 male pins
on the TCU adapter cable. It is used only with the E46 convertible model 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 Yellow-Red RX On/Off
2 None Not Used
3 Brown KL31 (Ground)
4 Red KL 30 (B+)
5 Violet KLR
6 Blue-Green TX Audio
7 Grey-Green Battery Feedback
8 Blue-Yellow Handset Power Supply
9 None Not Used
10 Black Ent. Mute
11 Blue TXD
12 White-Red Reserved
13 None Not Used
14 White Microphone - Negative
15 Brown-White Microphone - Positive
16 Red KL 30 (B+)
17 Brown KL31 (Ground)
18 White-Green RXD
19 Black Speaker Positive
20 Brown-Black Shield Ground
21 Grey-Red Telephone On
22 White-Red I-Bus
23 Yellow Logic Ground
24 White-Black Analog Ground
25 Yellow Speaker Negative
26 None Not Used

--------------- BMW CPT8000 Training & Troubleshooting Manual ---------------

Version 2.01 8/29/2001
5.5 28 Pin Multilock TCU Connector


Figure 1 - 28 - Pin Multilock TCU Connector

This is a male connector with 28 female pins and mates with a female connector with 26 male pins
on the TCU adapter cable. Figure 1 represents the connector with pin orientation. Wire colors may
vary due to manufacturing variations.

25 Pin 28 Pin Wire Color Pin Description Notes
DSUB Multilock
Pin # Pin #

1 A8 Yellow-Red RX Audio On/Off
2 B3 White LED Output
3 B2 Brown-Black Vehicle Battery Ground
4 B1 Red-Yellow Vehicle Battery Voltage
5 B4 Violet-Red Ignition
6 A4 Blue-Green Tx Audio
7 A5 White-Blue Battery Feedback
8 A6 Orange External B+
9 A13 Blue-Yellow Emergency Button
10 B5 White-Brown Mute
11 A1 Blue TxD
12 A2 White-Red Reserved
13 A3 Yellow-Brown Roadside Button
14 B10 Green Microphone - Negative
15 B11 Yellow-Black Microphone - Positive
16 A12 Red-Yellow Battery +
17 A11 Brown-Black Battery Ground
18 A7 White-Green RxD
19 B8 Blue-Black Speaker Positive
20 B9 Black Shield
21 A14 White-Gray Telephone On
22 B12 White-Gray-Yellow I-Bus
23 A15 Yellow Logic Ground
24 A16 White-black Audio Ground
25 B7 Blue-Brown Speaker Negative

J2 J1
BA161 12
7 16
8
9