For 1990-2009 cars

# INFO. NEW TOOL J-41450-B RELEASED FOR CS GEN DIAG.

#### SUBJECT: INFORMATION - NEW TOOL J-41450-B, RELEASED FOR CS GENERATOR DIAGNOSIS

#### MODELS: 1988-98 PASSENGER CARS AND LIGHT TRUCKS WITH CS-SERIES GENERATORS

A NEW CS-SERIES GENERATOR TESTER, J-41450-B, HAS BEEN SENT TO ALL DEALERS AS PART OF THE ESSENTIAL TOOL PACKAGE. THIS TOOL WILL WORK ON ALL CS-SERIES GENERATORS FOR PAST MODEL YEARS. THE TOOL IS SHOWN IN FIGURE 1.

THE FOLLOWING CHART CAN BE USED IN PLACE OF THE DIAGNOSTIC PROCEDURES IN PREVIOUS SERVICE MANUALS WHEN THIS NEW TOOL IS USED. THIS INFORMATION WILL BE INCLUDED IN THE 1999 SERVICE MANUAL.

INSPECT THE FOLLOWING BEFORE TESTING THE GENERATOR:

- THE BATTERY. MAKE SURE THE VEHICLE BATTERY IS IN GOOD CONDITION AND FULLY CHARGED. REFER TO BATTERY LOAD TEST.

- THE BUILT-IN HYDROMETER IN THE BATTERY. THE GREEN EYE MUST BE SHOWING IN THE HYDROMETER.

- THE VOLTAGE ACROSS THE BATTERY TERMINALS WITH ALL THE LOADS OFF SHOULD BE ABOVE 12 V. REFER TO BATTERY LOAD TEST.

- MAKE SURE THE BATTERY CONNECTIONS ARE CLEAN AND TIGHT.

- THE DRIVE BELT FOR DAMAGE OR LOOSENESS.

- THE WIRING HARNESS AT THE GENERATOR. MAKE SURE THE HARNESS CONNECTOR IS TIGHT AND LATCHED. MAKE SURE THE OUTPUT TERMINAL OF THE GENERATOR IS CONNECTED TO THE VEHICLE BATTERY (POSITIVE) GENERATOR LEAD.

- ALL THE CHARGING SYSTEM RELATED FUSES AND ELECTRICAL CONNECTIONS FOR DAMAGE OR LOOSENESS. REFER TO THE STARTER AND CHARGING SYSTEM SCHEMATICS.

FIGURES: 01

ATTACHMENTS: 04

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.

COPYRIGHT 1998 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.