Cutlass L4-138 2.3L VIN A FI HP (1990)
Technical Service Bulletin # 90T788B
Date: 900501
Stoplamp Switch - Revised, Includes Service Procedure
SUBJECT
NEW STOPLAMP SWITCH AND SERVICE
PROCEDURE (NEW PART AND PROCEDURE)
MODELS/YEARS
1988-90 CUTLASS SUPREME MODELS
NUMBER:
90-T-78
CORP. REF. NO: 935012R
DATE:
May 1990
SECTION:
8B
THIS BULLETIN CANCELS AND REPLACES DEALER TECHNICAL BULLETIN 89-T-146 (CORPORATE REFERENCE NUMBER 935007) TO
INCORPORATE THE ADJUSTMENT CHECK WITH THIS NEW SERVICE PROCEDURE.
A new stoplamp switch has been released for the 1990 model year, which services all previous model years. The new switch part number is 10180504
which is currently available from GMSPO.
Refer to "Stoplamp Switch Adjustment Check Procedure" on page 4 of this bulletin to determine if the switch operates properly.
The stoplamp switch service procedures have been revised. The following procedures should be used when removing, installing or adjusting the
stoplamp switch.
This procedure applies to the 1988-90 Cutlass Supreme Service Manuals Section 5, pages 5-6 and 5-7, please update your Service Manuals.
Procedure:Removal and Installtion
Figure 1 - Stoplamp Switch
PROCEDURE:
STOPLAMP SWITCH
Figure 1
Remove or Disconnect
1.
Air cleaner assembly, if necessary to access battery cables.
