GM Service Manual Online
For 1990-2009 cars only

Symptoms - Park Brake Base Park Brake

Important: Review the system operation in order to familiarize yourself with the system functions.

Refer to Park Brake System Description and Operation .

Visual/Physical Inspection

    • Inspect for aftermarket devices which could affect the operation of the park brake system.
    • 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 in Wiring Systems.

Symptom List

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

    •  Park Brake Indicator Inoperative
    •  Park Brake Indicator Always On

Symptoms - Park Brake RPO J71

Important: Review the system operation in order to familiarize yourself with the system functions.

Refer to Park Brake System Description and Operation .

Visual/Physical Inspection

    • Inspect for proper fluid level and correct if necessary.
    • Inspect for aftermarket devices which could affect the operation of the park brake system.
    • 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 in Wiring Systems.

Symptom List

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

    •  Apply Park Brake Indicator Inoperative
    •  Apply Park Brake Indicator Always On
    •  Park Brake Indicator Inoperative
    •  Park Brake Indicator Always On
    •  Service Park Brake Indicator Inoperative
    •  Service Park Brake Indicator Always On
    •  Park Brake Pressure Sensor Circuit Check
    •  Park Brake Pump Motor Does Not Run
    •  Park Brake Pump Motor Runs Continuously

Symptoms - Park Brake RPO JE5

Important: Review the system operation in order to familiarize yourself with the system functions.

Refer to Park Brake System Description and Operation .

Visual/Physical Inspection

    • Inspect for aftermarket devices which could affect the operation of the park brake system.
    • 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 in Wiring Systems.

Symptom List

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

    •  Park Brake Indicator Inoperative
    •  Park Brake Indicator Always On