Symptoms - Hydraulic Brakes

Symptoms - Hydraulic Brakes

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



1. Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) before using the brake indicator symptom tables in order to verify that all of the following are true:

* There are no DTCs set.
* The control modules can communicate via the serial data link.

2. Review the system operation in order to familiarize yourself with the system functions. Refer to Brake Warning System Description and Operation (Brake Warning System Description and Operation) .



Visual/Physical Inspection

* Inspect for aftermarket devices which could affect the operation of the brake warning system. Refer to Checking Aftermarket Accessories (Component Tests and General Diagnostics) .
* Inspect the easily accessible or visible system components for obvious damage or conditions which could 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 (Component Tests and General Diagnostics) .


Symptom List

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

* Brake Warning Indicator Malfunction (Brake Warning Indicator Malfunction)
* Brake Pulsation (Brake Pulsation)
* Brake System Noise (Brake System Noise)
* Braking Action Uneven - Pulls to One Side (Braking Action Uneven - Pulls to One Side)
* Braking Action Uneven - Front to Rear (Braking Action Uneven - Front to Rear)
* Brake Pedal Excessive Travel (Brake Pedal Excessive Travel)
* Brake Pedal Excessive Effort (Brake Pedal Excessive Effort)
* Brakes Drag (Brakes Drag)
* Brake System Slow Release (Brake System Slow Release)
* Brake Fluid Loss (Brake Fluid Loss)