CELLULAR MOBILE TELEPHONE SYSTEMS SERVICE PROCEDURES
A cellular mobile telephone system is available as a factory and dealer installed option for the 1986 De Ville, Fleetwood and standard limousine.
This bulletin will explain option content, new car pre-delivery procedures, service procedures and items unique to the cellular mobile telephone system.
SYSTEM ORDERED ON NEW CARS
When a De Ville (or Fleetwood or standard limousine) is ordered with a mobile telephone (option code UV9) the entire telephone system will be factory installed with the exception of the antenna, transceiver, handset and user's manual. The antenna assembly will require mounting and will arrive boxed, along with antenna installation instructions, in the luggage compartment of the vehicle. The transceiver, handset and user's manual will be shipped from Motorola to the dealership in a separate package prior to vehicle delivery. In order to prepare the vehicle for customer delivery, these items need to be installed in the car per the procedures found in the Service Information Manual. The New Vehicle Inspection allowance will provide for an additional .5 hours for vehicles ordered with this system to cover installation of the antenna, transceiver, handset and programming.
Accompanying the transceiver and handset will be instructions for the simple programming of the telephone system. These instructions are also included at the end of this bulletin. This programming includes such things as the establishment of the owner's new telephone number.
SYSTEMS ORDERED FOR STOCK CARS
When ordering a cellular telephone system for a stock vehicle an installation package containing all the mobile telephone components and wiring will be needed (UV9 inciuding UV8). A detailed installation manual covering every aspect of the installation is included in this package. It is also possible to order only the handset and transceiver for a vehicle already equipped with the telephone provisions (UV9 excluding UV8).
ORDERING TELEPHONE PROVISIONS ONLY
If an owner already has a Cadillac telephone system in one vehicle and wishes to share the handset and transceiver with or transfer to a second vehicle, it is possible to order a new vehicle with option code UV8, the mobile telephone provision package, for a new vehicle and not receive the telephone handset and transceiver. The mobile telephone provisions package includes all the telephone harnesses and cables, the microphone, the antenna, the radio mute module and custom armrest.
It must be stressed that only the Cellular Mobile Telephone System available through Cadillac is compatible with the telephone provisions package. Even if other telephone systems will mate with the wiring, they wili not be fully operational.
WARRANTY
The cellular mobile telephone system is covered by the vehicle's 12 month/ 12,000 mile basic warranty period. This coverage is for all wiring and components in the system.
All diagnosis and repair work should be done at the dealership except for repairs internal to the transceiver or handset, which are serviced as indicated below. Any repair, installation or pre-delivery work performed by other than a franchised Cadillac dealer will be considered a sublet in accordance with the Cadillac Service Policies and Procedures Manual.
SERVICE
All service parts are available from GMWDD with the exception of the transceiver and handset. When diagnosis has determined that the handset or transceiver require repair, both components should be sent to the nearest Motorola service shop which will repair or replace the components at no charge while under the warranty. By dialing 1-800-331-6456 outside of Illinois or L1312-576-0428 inside Illinois, information regarding the location of the nearest service shop, installation and service inquiries can be obtained. Phones are staffed from 9:30 - 5:00 Central Standard Time.
When servicing a cellular mobile telephone system, diagnosis may require the placing of telephone calls in order to identify the condition. These calls should be made to the dealership switchboard or other local destination and should be very brief. The owner should be advised of this procedure and informed that a small charge for the call will appear on their telephone bill.
Until cellular service matures, there may be some disturbances during telephone operation that are caused by the system operators and not the vehicle's telephone system. This may result in an erroneous owner perception that the cellular mobile telephone equipment in the vehicle is not operating properly. Some of the more common disturbances are:
1. Dropping calls 2. "Cellophane crumpling" distortion 3. Hearing other conversations simultaneously 4. Garbled audio
These types of disturbances primarily arise in cell "fringe" areas where the range of service begins to fall off, areas of the city with many tall buildings and during the first few months that a cellular system is available in a city.
SYSTEM OPERATORS/ROAMING ------------------------ A customer should be sure that the area where they intend to use the phone system has established cellular telephone service. Many rural regions still may not have cellular service.
Most metropolitan areas are typically serviced by two types of system operators; "non-wireline" or A, and "wireline" or B. The "wireline" carrier is the regional telephone operating company while the "non-wireline" carrier is a Radio Common Carrier that processes calls without using the established telephone cabling. Either one of these system operators can be chosen by the owner as his or her "home" system.
SYSTEM OPERATORS/ROAMING cont. ------------------------ Roaming is a feature that allows cellular subscribers to obtain service in a system other than their home system. That is, they can use system A or B. Whenever the mobile telephone comes within range of a visited cellular telephone system, the ROAM indicator will automatically illuminate to indicate that you are within range.
When roaming, the mobile telephone will automatically seek service from the same type of carrier as the owner's home system. If, however, that particular system is not available where the owner is roaming, the mobile telephone will automatically seek to provide service over a non-home type system.
TELEPHONE NUMBER ACQUISITION
When establishing customer telephone service, the following sequncee of events must occur:
1. The dealer must receive the customer's:
a. Social Security Number and home address if the system is privately owned or the company's full name and address if company owned (necessary for credit investigation).
b. Preferred system operator, desired billing option and any special service features (i.e., "call waiting").
c. Choice of a random three-digit unlock code and six-digit security code which will be used in item 4, the programming of the Number Assignment Module.
2. The dealer, in turn, must supply the chosen system operator:
a. The owner's Social Security Number and home address if telephone service is billed to an individual or the company's full name if telephone service is billed to a company.
b. The customer's choice of billing and any enhanced service features.
c. The customer's telephone system transceiver's serial number and Electronic Serial Number (ESNF)(both numbers can be found on the transceiver's identification tag, see Figure 1).
3. The system operator will then supply the dealer with:
a. A system identification number systems station class mark, access overload class and group identification mark.
b. Customer's new telephone number.
c. Information on whether the operator is an A, non-wireline or B, wireline system operator.
TELEPHONE NUMBER ACQUISITION cont.
4. The deaLer must then use the information from Item 3 in a simple 16-step programming procedure to program the transceivers Number Assignment Module (NAM). The prgramming of the telephone system is done with the key pad of the telephone handset. Programming instructions are included with the transceiver, as well as in this bulletin.
The information required in Item 1 should be supplied by the customer prior to the customer accepting delivery of the vehicle. It may be beneficial to the customer if the dealership has literature on hand from both local system operators in order to assist owners who are unfamiliar with cellular telephone service in making decisions concerning billing and special features.
The system operator requires the customer information in part "a" of Item 2 in order to conduct a credit check. This information may already be available if the customer has purchased their new vehicle on credit. If the credit check indicates a need, the customer will be required to pay a line deposit which typically amounts to $300 - $400. Telephone service is usually activated the same day the phone number is assigned.
PROGRAMMING THE CELLULAR MOBILE TELEPHONE
Once the above telephone number acquisition procedure has been completed, a brief programming of the telephone system must be done.
The Number Assignment Module (NAM) is an integrated circuit located in the mobite telephone transceiver which stores system control and option information. Prior to operating the mobile telephone, the NAM must be programmed with the proper data for operation in the particular cellular system.
The programming is accomplished entirely through the use of the mobile telephone handset. Following the programming procedure listed and using the data in the NAM Programming Sequence Table, the mobile telephone can be easily and quickly set-up for owner operation.
Refer to Figure 1, Cellular Mobile Telephone Transceiver Face, for locating the 20 pin test connector interface and its pin designation. A test jumper is included and is to be used in Step 2 of the programming procedure. Figure 2 is an illustration of the handset keypad and defines each key's function.
Some data required in programming will be provided by the owner's chosen system operator and some by the owner themselves. The NAM Programming Sequence Table identifies what information must be provided and from whom.
PROGRAMMING PROCEDURE FOR THE CELLULAR MOBILE TELEPHONE
1. Install the mobile telephone into the vehicle.
2. Jumper pins 9 and 11 of 20-pin test connector interface (see Figure 1).
3. Power up phone system by depressing the PWR key (with the ignition on) (see Figure 27.
4. Press the # key (see Figure 2) to activate the test mode. (Only the far right-hand segment on the bottom row of digits will be illuminated in the message display of the handset, indicating you are in test mode.)
5. Initialize NAM programming from the handset by entering 55#. (This step places the unit in the programming mode starting with programming step one. The two digits on the left side of the top row of the display indicate the programming step number. The remainder of the display shows the current NAM contents or new data as it is entered.)
6. Sequentially step through the programming steps using the asterisk (*) key (see Figure 2) and enter the desired programming data. Refer to attached NAM Programming Sequence Table for descriptions of programming steps and data. Depress the asterisk (*) key to skip any step where the default is identical to what is listed in the Standard Delault column of the Sequence Table (unless otherwise noted).
NAM PROGRAMMING SEQUENCE TABLE
STANDARD STEP DEFAULT DESCRIPTION
01 00000 System ID Number - Number provided by System Operator for system identification.
02 1 Options (Standard) 1 or0* Set to "1" if owner's home System Operator is A, non- wireline, or set to "0" if System Operator is B, wireline. This information is provided by the System Operator.
101001 Remaining digits for step 02.
03 1111110111* Owner's 10-digit telephone number provided by System Operator.
04 00* System Station Class Mark-The service system is assigned a two-digit station class,provided by the System Operator.
05 00* Access Overload Class-The numbers are provided by the System Operator.
06 00* Systems Group ID Mark - These numbers are provided by the System Operator.
07 000000* Security Code-This random six-digit number is provided by the owner.
08 123* Unlock Code-This three-digit number is provided by the owner.
09 004
10 00000100
11 00000000
12 0334* Initial Paging System - Enter 0333 if the owner's home System Operator is, non-wireline, or enter 0334 if its B, wireline.
13 0333
14 0334
15 021
16 Once step 15 of the programming sequence has been completed,press the asterisk (*) key for the data to be programmed into the NAM.
* These numbers may vary. The actual numbers to be entered will have been supplied in the previous Telephone Number Acquisition procedure.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.
