FixVault
Home › Geo › 1991 › Prizm Base, 4D Hatchback, Standard › Repair and Diagnosis › Engine Performance › System › Engine Controls - Tests W/Codes › PRIZM GSi CODE CHARTS (VIN 5) › Code 53, Knock Control Signal/Faulty ECM

Code 53, Knock Control Signal/Faulty ECM

Fig 1: Code 53 Flow Chart, Knock Control Signal/Faulty ECM
G91D16827Courtesy of GENERAL MOTORS CORP.
About FixVault