For 1990-2009 cars

# INFORMATION ON BOARD DIAGNOSTIC CIRCUIT CHECK

#### SUBJECT: 1994 ON BOARD DIAGNOSTIC CIRCUIT CHECK

#### MODELS: 1994 PASSENGER CARS

DUE TO THE INCREASING COMPLEXITY OF DIAGNOSTICS, THE ON BOARD DIAGNOSTIC SYSTEM CHECK FOR DRIVEABILITY AND EMISSIONS RELATED CONDITIONS IN SECTION 6E3 FOR ALL VEHICLES MAY NOT BE THE SAME. REFER TO THE APPROPRIATE SERVICE MANUAL FOR THE VEHICLE THAT YOU ARE WORKING ON, AND REVIEW THE ON-BOARD DIAGNOSTIC SYSTEM CHECK TO ENSURE ALL STEPS IN THE CHART ARE PROPERLY FOLLOWED. FAILURE TO DO SO MAY RESULT IN MISDIAGNOSIS.

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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 1993 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.