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Subject: SERVICE MANUAL UPDATE SEC. 5E1 ABS DIAGNOSIS-REVISED CODE 63 Model and Year: 1990 CORVETTE Source: Chevrolet Service Bulletin Bulletin Number: 90-430-5 - (08/21/1991) This bulletin serves to update the ABS Code 63 (Page 1 of 3)... Read More

Subject: ANTI-LOCK BRAKE SYSTEM (ABS) PUMP MAKES NOISE AND "ABS ACTIVE" LIGHT FLASHES WHILE DRIVINGModel and Year: 1991 CORVETTESource: Chevrolet Service BulletinBulletin Number: 91-491A-5 - (06/01/1992) THIS BULLETIN CANCELS AND SUPERSEDES DEALER... Read More

DTC/DescriptionTypeIlluminate Indicator or Turn ON DIC Message DTC B2597 Traction Control System Switch CircuitBCMNone DTC C1214 Solenoid Valve Relay Contact or Coil Circuit OpenABSABS/TCS/DIC DTC C1217 Pump Motor Relay Contact Circuit OpenABSABS/TCS... Read More

Subject:   Anti-Diesel Relay Model and Year:   (1971) All Passenger Cars and Light Trucks with Air Conditioning Except Vega Source:  Chevrolet Dealer Service Technical Bulletin Bulletin No:   71-T-44 Section: ... Read More

Subject:   Gasoline Additive for Preventing Exhaust Valve Recession Model and Year:   Pre-1971 Passenger Cars and Trucks, 1971-1978 Trucks over 6,000 Lbs. GVW, 1979-1986 Trucks Over 8,000 Lbs. GVW Source:  Chevrolet Dealer... Read More

Subject:    Anti-Reversing and Telltale Odometers Model and Year: 1969 Vehicles Source: Chevrolet Service News Date: April 1969 - Volume 41 - Number 4 As stated in an article entitled "Anti-Reversing Odometers - 1969 Vehicles",... Read More

Subject: Positraction Chatter - 1972 Passenger Cars and 10 Series Trucks Model and Year: 1972 Corvette Source: Chevrolet Service News Page Number: Page 1 Date: November 1972, Volume 44, Number 11 Field Reports indicate that some 1972... Read More

Subject: ENGINE COOLANT USAGE ANTI-FREEZE SPECS CHANGE Model and Year: 1982-1983 VehiclesSource: Chevrolet Service BulletinBulletin Number: 83-I-26 - (01/17/1983) Chevrolet Motor Division has in past model years recommended use of ethylene glycol... Read More

Source:  Corvette ABS/ASR Operation and Diagnosis, STG Manual 13003.02-1Page:  4-5, 4-6Copyright: 1991, General Motors Corporation Code-Based Diagnosis   CodeDescriptionDisable 21 RF Wheel Speed Sensor Fault ABS/ASR 23 RF Wheel... Read More

Subject: INTERMITTENT ASR SERVICE LIGHT (REPLACE MEM-CAL)Model and Year: 1993-94 CHEVROLET CORVETTE WITH 5.7L ENGINE (VIN J - RPO LT5) AND MANUAL 6-SPEED (ML9) TRANSMISSIONSource: Chevrolet Service BulletinBulletin Number: 47-50-01CONDITION:SOME... Read More