Motorola Telephone Diagnostic Tool Kit - Usage
Group 04Tools and
Equipment
Bulletin Number
04 03 93 (3739)
Woodcliff Lake, NJ
March 1993
Product Engineering
SUBJECT:
Motorola Telephone Diagnostic Tool Kit Use
MODELS:
All equipped with BMW/Motorola Cellular Telephone System
Situation:
Since the introduction of the BMW CMT1000 and CMT1000VR mobile cellular telephones, a diagnostic tool kit (P/N 99 99 6 000 001) has been available to assist in evaluating telephone component problems, using a "bench" setup. A few dealers have expressed concern that there is insufficient information for hooking up the color-coded wires on the wiring harness included in the kit.
Correction:
The telephone transceiver, speaker, microphone, handset, and data cable connections are all coded and keyed connectors. There can be no confusion as to how these connections are made. However, the power and ground wires should be connected as listed. Note that the "Equivalent Vehicle Pins" column is given as a reference describing a similar example connection on an E36 vehicle. Refer to the 1993 E36 ETM, section 6561.1 for details.
Input connections are as follows:
RED Connect to 12 volt power supply, positive side (both wires)
BLACK Connect to 12 volt power supply, negative side (both wires)
GREEN Connect to 12 volt power supply, positive side (simulates key ON)
Output connections are as follows:
YELLOW Connect to radio mute or ohmmeter (Not necessary unless testing mute feature. Yellow wire will source a ground when phone is active.)