How to Use Pinpoint Tests

Do not perform any of the following pinpoint tests unless instructed to do so by the Quick Test. Each pinpoint test assumes that a fault (malfunction) has been detected in the system with direction to enter a specific repair routine. Conducting any pinpoint test without direction from the quick test procedures may produce incorrect results and replacement of satisfactory components. Correct test results for quick test are dependent on the proper operation of related components/systems. Do not replace any component unless the test result indicates that they should be replaced. When more than one service code is received always start service with the first code received. In using the Pinpoint Tests, follow each Step in order, starting from the first Step in the appropriate test. Follow each Step until the fault is found. After completing any repairs to the anti-lock brake system, verify all components are properly reconnected and repeat the functional test.