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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 683 (Anti-Lock Brake System) >> Diagnostic Information & Procedures >> DTC C0269, C0274: Excessive Dump/Isolation Time >> Test Description

Test Description

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The number below refers to the step number on the diagnostic table:

  1. 2)  - Performing solenoid tests determines if there is a mechanical malfunction inside the BPMV. Perform dump valve solenoid tests for DTC C0269 or isolation valve solenoid tests for DTC C0274.
  2. Fig 1: DTC C0269 Or C0274 Diagnosis
    G01669324Courtesy of GENERAL MOTORS CORP.