AutoCodes – Generic – C1157

C1157 Code - Park Brake Actuator Assembly Switch Applied Circuit Failure

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Park Brake Actuator Assembly Switch. Common causes include Faulty Park Brake Actuator Assembly Switch, Park Brake Actuator Assembly Switch harness is open or shorted, Park Brake Actuator Assembly Switch circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C1157 indicates Park Brake Actuator Assembly Switch Applied Circuit Failure.
Common causes: Common causes include Faulty Park Brake Actuator Assembly Switch, Park Brake Actuator Assembly Switch harness is open or shorted, Park Brake Actuator Assembly Switch circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 7,675

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 18, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1157 Description

The Anti-Lock Brake System (ABS) Module monitors the Park Brake Actuator Assembly Switch. The ABS Module sets the OBDII code when the Park Brake Actuator Assembly Switch is not to factory specifications.

OBDII Code C1157 - Park Brake Actuator Assembly Switch Applied Circuit Failure - AutoCodes.com — C1157 Code - Park Brake Actuator Assembly Switch Applied Circuit Failure

What does this mean?

What are the Possible Causes of the DTC C1157?

Faulty Park Brake Actuator Assembly Switch
Park Brake Actuator Assembly Switch harness is open or shorted
Park Brake Actuator Assembly Switch circuit poor electrical connection

How to Fix the DTC C1157?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1157 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the C1157 code?

Need more information on how to fix the C1157 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1157 code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1157 Code

1. What are common symptoms of OBDII code C1157 (Park Brake Actuator Assembly Switch Applied Circuit Failure)?

The common symptoms of code C1157 include the parking brake warning light staying illuminated on the dashboard and potential issues with the parking brake system.

2. What could cause OBDII code C1157 to trigger?

Code C1157 is typically triggered by a malfunction in the park brake actuator assembly switch, which may be caused by wiring faults, a faulty switch, or issues with the actuator itself.

3. How serious is OBDII code C1157?

While code C1157 may not directly affect the drivability of the vehicle, it is important to address the underlying issue promptly to ensure the proper functioning of the parking brake system.

4. Can I continue driving with OBDII code C1157 present?

It is generally not recommended to drive with code C1157 present, as it indicates a potential issue with the parking brake system that could compromise safety.

5. How can I diagnose OBDII code C1157?

Diagnosing code C1157 involves using a diagnostic scanner to retrieve the code, inspecting the park brake actuator assembly switch, checking for wiring faults, and testing the switch for proper functionality.

6. What are some repair tips for OBDII code C1157?

Repairing code C1157 may involve replacing the park brake actuator assembly switch, repairing any wiring faults, or addressing issues with the actuator itself. It is recommended to follow the manufacturer's repair procedures.

7. Can I reset OBDII code C1157 without fixing the underlying issue?

While you can clear the code with a diagnostic scanner, it is important to address the root cause of the issue to prevent the code from reoccurring and ensure the proper functioning of the parking brake system.

8. How much does it cost to repair OBDII code C1157?

The cost of repairing code C1157 can vary depending on the underlying issue, the extent of the repairs needed, and labor costs. It is advisable to consult a professional mechanic for an accurate estimate.

9. Are there any preventive measures to avoid OBDII code C1157?

Regular maintenance of the parking brake system, including checking the actuator assembly switch and wiring for any signs of wear or damage, can help prevent code C1157 from occurring.

10. Is OBDII code C1157 specific to certain vehicle makes and models?

Code C1157 can be found in various vehicle makes and models equipped with OBDII systems, particularly those with electronic parking brake systems.