AutoCodes – Generic – C1285

C1285 Code - Booster Solenoid Circuit Failure

Quick Answer

The Active Brake Booster has internal solenoids that assist driver brake applications or that can apply the brakes when needed if the driver loses control. Common causes include Faulty Active Brake Booster, Lateral Accelerometer Sensor harness is open or shorted, Lateral Accelerometer Sensor 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
C1285 indicates Booster Solenoid Circuit Failure.
Common causes
Common causes include Faulty Active Brake Booster, Lateral Accelerometer Sensor harness is open or shorted, Lateral Accelerometer Sensor 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 29,280
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 03, 2020
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Code C1285 Description

The Active Brake Booster has internal solenoids that assist driver brake applications or that can apply the brakes when needed if the driver loses control. Voltage is supplied to the solenoid from the Anti-Lock Brake System (ABS) Module and ground is provided back to the ABS module.
OBDII Code C1285 - Booster Solenoid Circuit Failure - AutoCodes.com
C1285 Code - Booster Solenoid Circuit Failure

What are the Possible Causes of the DTC C1285?

  • Faulty Active Brake Booster
  • Lateral Accelerometer Sensor harness is open or shorted
  • Lateral Accelerometer Sensor circuit poor electrical connection
  • Faulty Anti-Lock Brake System (ABS) Module

How to Fix the DTC C1285?

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 C1285 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 C1285 code?

Need more information on how to fix the C1285 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1285 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 C1285 Code

1. What are the common symptoms of OBDII code C1285 (Booster Solenoid Circuit Failure)?

- Common symptoms include the ABS warning light illuminating on the dashboard, loss of ABS functionality, and potential issues with the vehicle's braking system.

2. What are the possible causes of OBDII code C1285?

- Possible causes include a faulty booster solenoid, damaged wiring or connectors in the solenoid circuit, low brake fluid level, or a malfunctioning ABS module.

3. How can I diagnose the cause of OBDII code C1285?

- Diagnosis typically involves using a diagnostic scanner to retrieve the specific trouble code, inspecting the booster solenoid and its wiring for any visible damage, and testing the circuit for continuity and proper voltage.

4. Can I still drive my vehicle with OBDII code C1285 present?

- It is not recommended to drive the vehicle with this code present, as it may affect the proper functioning of the ABS system and compromise overall braking performance.

5. How do I repair OBDII code C1285 (Booster Solenoid Circuit Failure)?

- Repair may involve replacing the faulty booster solenoid, repairing or replacing damaged wiring or connectors, ensuring the brake fluid level is adequate, and addressing any issues with the ABS module if necessary.

6. Are there any DIY tips for fixing OBDII code C1285?

- DIY tips include checking and cleaning electrical connections, inspecting for any visible damage to the solenoid and wiring, and following the vehicle's service manual for specific repair procedures.

7. How much does it typically cost to repair OBDII code C1285?

- The cost of repair can vary depending on the extent of the issue, parts needed, and labor costs. It is advisable to consult a mechanic or repair shop for an accurate estimate.

8. Can OBDII code C1285 be intermittent or come and go?

- Yes, this code can sometimes be intermittent, especially if the issue is related to loose wiring or a sporadic electrical connection. It is important to address the underlying cause to prevent further problems.

9. Will resetting the OBDII code C1285 clear the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the code. It is crucial to diagnose and repair the issue to prevent it from recurring.

10. Is it possible to prevent OBDII code C1285 from occurring in the future?

- Regular maintenance of the vehicle's braking system, including checking brake fluid levels and inspecting ABS components, can help prevent issues that may trigger this code.

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