ignition switch BMW 3 SERIES 2000 E46 CPT8000 Electrical Connectors And Wiring Diagrams Workshop Manual

--------------- 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
5.3 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