Ninety-Eight V6-3800 3.8L (1989)
Technical Service Bulletin # 91T549A
Date: 910201
Radio - Delco-LOC II Setting Procedure Information
NUMBER:
91-T-54
CORP.REF.NO: 039005
DATE:
February 1991
SECTION:
9A
SUBJECT:
NEW "DELCO-LOC II" OPTION U1C SETTING PROCEDURE INFORMATION
MODELS/YEARS
89-90 NINETY-EIGHT, 89-91 EIGHTY-EIGHT AND CUTLASS SUPREME,
90-91 CUTLASS CALAIS AND SILHOUETTE, 91 CUSTOM CRUISER
APPLICATION INFORMATION:
The following information updates all existing Service Manual information.
The procedures below explain how to operate the Delco LOC II security system. This includes entering and removing customer codes, unlocking the
radio, obtaining the factory display code, and obtaining the factory backup code.
GENERAL INFORMATION:
Different model radios use different buttons to set the codes into the radio. To determine which two buttons to use, determine if the radio has a seek
button, a seek up/down button, or no seek button at all.
If the radio has a seek button, use seek and scan to set the codes as described below.
If the radio has a seek up/down button, use seek up/down and tune up/down to set the codes and substitute these buttons for seek and scan in the
procedures below.
If the radio has no seek button, use tune down and tune up to set the codes and substitute these buttons for seek and scan in the procedures below.
Different model radios have different functions attached to the radio presets. Below is the present configuration of dual functions depending on the radio
having a seek button, seek up/down or no seek button at all.
SEEK BUTTON:
Presets 1 (PREV), 2 (NEXT), 3 (REV), 4 (FF), 5 (COMP)
SEEK UP/DOWN:
Presets 1 (PREV), 2 (NEXT), 3 (REV), 4 (FF), 5 (COMP)
NO SEEK:
Presets 1 (REV), 2 (FF), 3 (COMP), 4 (REPT) 5 (SRCH), 6 (SCAN)
Radio Displays
RADIO DISPLAYS:
"LOC"
Means the radio is locked and there is a customer code stored in the radio.
"InOP"
Means too many wrong codes have been entered and the radio must be left powered up for 1 hour with battery and ignition applied before 3 more attempts can be made.
"SEC"
Means there is a customer code stored but the radio is unlocked.
"---"
Means there is no customer code stored and the radio is unlocked.
"rEP"
Means you have entered your customer code once, and the radio now wants the code repeated again to verify you entered the correct code the first time.
Setting Procedure Information
PROCEDURE:
A.
TO UNLOCK RADIO - From "LOC" display Mode on Power Up After Battery Power is Removed
RADIO DISPLAY
Display comes up "LOC"
"LOC"
1.
Press the set button
"000"
2.
Set the first digit (0-9) of your code with the seek button.
"100"