AutoCodes – Pontiac – C1100 Pontiac

C1100 Pontiac Code - Brake Booster Vacuum Sensor Performance

Quick Answer

The Electronic Brake Control Module (EBCM) provides a power 5-volt reference to the brake booster vacuum sensor. Common causes include Faulty Brake Booster Vacuum Sensor, Brake Booster Vacuum Sensor harness is open or shorted, Brake Booster Vacuum 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
C1100 Pontiac indicates Brake Booster Vacuum Sensor Performance.
Common causes
Common causes include Faulty Brake Booster Vacuum Sensor, Brake Booster Vacuum Sensor harness is open or shorted, Brake Booster Vacuum 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,674
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 13, 2020
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Code C1100 Pontiac Description

The Electronic Brake Control Module (EBCM) provides a power 5-volt reference to the brake booster vacuum sensor. The brake booster vacuum sensor converts the change in vacuum levels in the brake booster into a voltage signal. This signal is sent to the EBCM. The voltage signal ranges, from 0.13 to 3.30 volts depending on vacuum levels. The low reference is the return side of the sensor to ground.
OBDII Code C1100 Pontiac - Brake Booster Vacuum Sensor Performance - AutoCodes.com
C1100 Pontiac Code - Brake Booster Vacuum Sensor Performance

What are the Possible Causes of the DTC C1100 Pontiac?

  • Faulty Brake Booster Vacuum Sensor
  • Brake Booster Vacuum Sensor harness is open or shorted
  • Brake Booster Vacuum Sensor circuit poor electrical connection

How to Fix the DTC C1100 Pontiac?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1100 Pontiac 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 C1100 Pontiac code?

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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 C1100 Pontiac Code

1. What are common symptoms of OBDII code C1100 in a Pontiac related to the Brake Booster Vacuum Sensor Performance?

- Common symptoms include a firm brake pedal, difficulty braking, poor brake performance, and the illumination of the brake warning light on the dashboard.

2. What are the possible causes of OBDII code C1100 in a Pontiac indicating an issue with the Brake Booster Vacuum Sensor Performance?

- Possible causes may include a faulty brake booster vacuum sensor, vacuum leaks in the brake booster system, or issues with the brake booster itself.

3. How can I diagnose the cause of OBDII code C1100 in my Pontiac related to the Brake Booster Vacuum Sensor Performance?

- Diagnosis typically involves checking the brake booster vacuum sensor for proper operation, inspecting the vacuum lines for leaks, and testing the brake booster for any malfunctions.

4. Can I continue driving my Pontiac with OBDII code C1100 related to the Brake Booster Vacuum Sensor Performance?

- It is not recommended to continue driving with this code present, as it can lead to potential brake failure or unsafe driving conditions. It is best to address the issue promptly.

5. Is it possible to repair OBDII code C1100 in a Pontiac related to the Brake Booster Vacuum Sensor Performance myself?

- While some DIY enthusiasts may be able to diagnose and repair this issue, it is recommended to seek professional assistance due to the critical nature of the braking system.

6. What are some tips for maintaining the brake booster vacuum sensor in a Pontiac to prevent OBDII code C1100 from occurring?

- Regularly inspecting the brake booster vacuum sensor, checking for vacuum leaks, and ensuring proper brake system maintenance can help prevent issues leading to this code.

7. How much does it typically cost to repair OBDII code C1100 in a Pontiac related to the Brake Booster Vacuum Sensor Performance?

- The cost of repair can vary depending on the specific issue, but it may involve replacing the brake booster vacuum sensor, addressing vacuum leaks, or repairing the brake booster, which can range from a few hundred to over a thousand dollars.

8. Can a faulty brake booster vacuum sensor cause other codes to appear in addition to OBDII code C1100 in a Pontiac?

- Yes, a faulty brake booster vacuum sensor can affect the overall performance of the braking system, potentially triggering other related OBDII trouble codes.

9. Are there any safety precautions I should take if I suspect a problem with the Brake Booster Vacuum Sensor in my Pontiac?

- It is crucial to prioritize safety if you suspect an issue with the brake booster vacuum sensor, as brake system malfunctions can compromise the vehicle's braking ability. Avoid driving the vehicle until the issue is resolved.

10. How long does it typically take to repair OBDII code C1100 in a Pontiac related to the Brake Booster Vacuum Sensor Performance?

- The repair time can vary based on the specific issue and the expertise of the technician, but it may take a few hours to a full day to diagnose, repair, and test the brake booster vacuum sensor system.

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