Symptoms - Antilock Brake System

Note
The following steps must be completed before using the symptom tables.

Perform the Diagnostic System Check - Vehicle before using the symptom tables in order to verify that all of the following are true:

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There are no DTCs set.

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The control modules can communicate via the serial data link.

Review the system description and operation in order to familiarize yourself with the system functions. Refer to ABS Description and Operation .

Visual/Physical Inspection

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Inspect for aftermarket devices which could affect the operation of the ABS. Refer to Checking Aftermarket Accessories .

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Inspect for easily accessible or visible system components for obvious damage or conditions which may cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

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