Symptoms - Hydraulic Brakes

Symptoms - Hydraulic Brakes

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


1. Perform the Brake System Vehicle Road Test (Brake System Vehicle Road Test) before using the hydraulic brake symptom tables in order to duplicate the customer's concern.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following procedures:

* Brake Warning System Description and Operation (Brake Warning System)
* Hydraulic Brake System Description and Operation (Hydraulic Brake System)
* Brake Assist System Description and Operation (Vacuum Assist) (Brake Assist System (Vacuum Assist))Brake Assist System Description and Operation (Hydraulic Assist) (Brake Assist System (Hydraulic Assist))
* Disc Brake System Description and Operation (Description and Operation)

Visual/Physical Inspection

* Inspect for aftermarket devices which could affect the operation of the Hydraulic Brake System. Refer to Checking Aftermarket Accessories (Checking Aftermarket Accessories).
* 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 (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:

* Brake Warning Indicator Malfunction (Brake Warning Indicator Malfunction)
* Brake Pulsation (Non-Hybrid) (Brake Pulsation (Non-Hybrid))Brake Pulsation (Two-mode Hybrid) ()
* Brake System Noise (Brake System Noise)
* Braking Action Uneven - Pulls to One Side (Non-Hybrid) (Braking Action Uneven - Pulls to One Side (Non-Hybrid))Braking Action Uneven - Pulls to One Side (Two-mode Hybrid) (Braking Action Uneven - Pulls to One Side (Two-Mode Hybrid))
* Braking Action Uneven - Front to Rear (Braking Action Uneven - Front to Rear)
* Brake Pedal Excessive Travel (Non-Hybrid) (Brake Pedal Excessive Travel (Non-Hybrid))Brake Pedal Excessive Travel (Two-mode Hybrid) ()
* 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)