Security Code Identifying, Diagnostic Test Command 55
Use the following procedure when phone programming is not possible due to an unknown or forgotten six-digit security code. This procedure is also used to determine a forgotten lock code or phone number.
-- Insert test mode connector US 30844 (arrow) in line between power cord (25-pin connector) -1- and transceiver -2-.
-- Switch ignition ON.
-- Switch phone ON by pressing "Pwr" button on handset.
Handset readout displays two alternating sets of numbers
This procedure can also be performed with the ignition switch OFF. However, when the phone is switched ON, the display may show "Loc'd". To proceed, press the -#- key to enter the test mode directly.
-- Press -#- key to enter test mode.
Handset readout displays US with an apostrophe (') in the upper right hand corner.
-- Enter diagnostic command 55 # by pressing keys 5 , 5 , and -#-.
- Test mode programming begins on step 1, below
- Five-digit system identification number is displayed (for example, 00000)
Sixteen different steps, each containing telephone programming information, can be displayed during this test mode.
* key: advances to next programming step
# key: exits program mode
-- Press -*- key six times to display six digit security code (step 7).
Press -*- key two times to display phone number (step 3) or seven times to display three-digit unlock code (step 8).
-- Write down needed information.
-- Press -#- key to exit test mode.
-- Handset readout displays an apostrophe (') in the upper right hand corner.
-- Switch phone OFF and remove test connector.
Test mode programming chart (55 #)
| Step number | Display description | Standard display |
|---|---|---|
| 1 | System identification number (five digits) | 00000 |
| 2 | A option byte (eight digits) (first digit will not appear on display) | (1)0101101 |
| 3 | Phone number (seven digits displayed) | (111)1110111 |
| 4 | Station class mark (two digits) | 12 |
| 5 | Access overload class (two digits from system provider) | 00 |
| 6 | Group I.D. mark (two digits from system provider) | 00 |
| 7 | Security code (six digits - user decides) | 000000 |
| 8 | Unlock code (three digits - user decides) | 123 |
| 9 | Service level (see user's manual for call restrictions) | 004 |
| 10 | B option byte (eight digits) (first digit will not appear on display) | (0)0000100 |
| 11 | C option byte (eight digits) (first digit will not appear on display) | (0)0001000 |
| 12 | Initial paging channel ("0333" or "0334") | 0XXX |
| 13 | Initial paging channel for "A" system | 0333 |
| 14 | Initial paging channel for "B" system | 0334 |
| 15 | Number of dedicated paging channels (always 21 in U.S.) | 021 |
| 16 | D option byte (eight digits) (first digit will not appear on display) | (0)0000001 |