How to Use Pinpoint Tests

Do not perform any of the Pinpoint Tests unless you are so instructed by the Quick Test. Each Pinpoint Test assumes that a fault has been detected in the system with direction to enter a specific repair routine. Doing any Pinpoint Test without direction from the Quick Test may produce incorrect results and replacement of non-defective components. Correct test results for the Quick Test are dependent on the proper operation of related components/systems. It may be necessary to correct any defects in these areas before passing the Quick Test.

Do not replace any parts unless the test results indicate they should be replaced.

When more than one trouble code is received, always start with the first code received.

Do not measure voltage or resistance at the processor unless otherwise specified.

To insure correct Pinpoint Test Procedures, follow steps in order as listed. Follow each step until a fault is found.

After completing any repairs to the ABS system, verify all components are properly reconnected and repeat the Quick Test.