C0138 Pontiac Code - Base Brake System Pressure Circuit/Sensor Low
Quick Answer
The C0138 diagnostic trouble code (DTC) for Pontiac vehicles indicates a problem with the base brake system pressure circuit or sensor being too low. Common causes include Faulty base brake pressure sensor, Brake fluid leak in the system, Air in the brake lines. 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
- C0138 Pontiac indicates Base Brake System Pressure Circuit/Sensor Low.
- Common causes
- Common causes include Faulty base brake pressure sensor, Brake fluid leak in the system, Air in the brake lines.
- 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 C0138 Pontiac Description
The C0138 diagnostic trouble code (DTC) for Pontiac vehicles indicates a problem with the base brake system pressure circuit or sensor being too low. The base brake system pressure is crucial for the proper functioning of the vehicle's braking system. This code typically points to issues with the brake pressure sensor, which is responsible for monitoring the hydraulic pressure in the brake system. When the sensor detects that the pressure is too low, it triggers the C0138 code.
Common Causes of C0138 Pontiac
- Faulty base brake pressure sensor.
- Brake fluid leak in the system.
- Air in the brake lines.
- Malfunctioning ABS module.
- Electrical issues affecting the brake pressure sensor.
Symptoms of C0138 Pontiac
- Illumination of the ABS warning light on the dashboard.
- Increased brake pedal travel or sponginess.
- Longer stopping distances.
- Decreased braking performance.
- Unusual noises coming from the brakes, such as grinding or squealing.
How to Fix C0138 Pontiac
- Begin by performing a visual inspection of the brake system to check for any visible leaks or damage.
- Use a diagnostic scan tool to retrieve the specific trouble code and further diagnose the issue.
- Test the base brake pressure sensor to determine if it is functioning correctly.
- Check the brake fluid level and quality, topping off or flushing the system if necessary.
- Repair or replace any faulty components identified during the diagnostic process, such as the brake pressure sensor, ABS module, or brake lines.
Cost to Fix C0138 Pontiac
The cost of repairing a C0138 code on a Pontiac can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the repair costs for this type of problem can range from $200 to $500, including parts and labor. However, it's important to note that prices can fluctuate based on factors such as the location of the repair shop, the make and model of the vehicle, and the severity of the issue. Additionally, diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically falling between $80 and $150. It's recommended to obtain quotes from local shops to get a more accurate estimate for the repair.
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Frequently Asked Questions about C0138 Pontiac Code
1. What are the common symptoms of OBDII code C0138 in a Pontiac related to the Base Brake System Pressure Circuit/Sensor Low?
- Common symptoms include the illumination of the Brake Warning Light on the dashboard, a decrease in brake performance, and potential ABS system malfunctions.
2. What are the possible causes of the OBDII code C0138 in a Pontiac?
- The code C0138 in a Pontiac can be caused by issues such as a faulty brake pressure sensor, damaged wiring in the brake system, low brake fluid levels, or a malfunctioning ABS module.
3. How can I diagnose the OBDII code C0138 in my Pontiac?
- Diagnosing the code C0138 typically involves using a diagnostic scanner to retrieve the trouble codes, performing a visual inspection of the brake system components, checking brake fluid levels, and testing the brake pressure sensor.
4. What are some repair tips for resolving the Base Brake System Pressure Circuit/Sensor Low code in a Pontiac?
- Repair tips for addressing the C0138 code may include checking and replacing damaged wiring, ensuring proper brake fluid levels, testing and replacing the brake pressure sensor if necessary, and resetting the fault codes after repairs are completed.
5. Can I continue driving my Pontiac with the C0138 code present?
- It is not recommended to drive your Pontiac with the C0138 code present, as it can lead to decreased brake performance and potential safety hazards. It is best to address the issue promptly to ensure safe operation of the vehicle.
6. How much does it typically cost to repair the OBDII code C0138 in a Pontiac?
- The cost of repairing the C0138 code in a Pontiac can vary depending on the specific underlying issue. Repairs may range from a simple sensor replacement to more extensive wiring repairs, potentially costing anywhere from $100 to $500 or more.
7. Can I reset the OBDII code C0138 in my Pontiac without making any repairs?
- While you can reset the OBDII code C0138 in your Pontiac using a diagnostic scanner, it is important to address the underlying issue causing the code to prevent potential safety risks and ensure proper vehicle operation.
8. Is the Base Brake System Pressure Circuit/Sensor Low code in a Pontiac a common issue?
- The C0138 code related to the Base Brake System Pressure Circuit/Sensor Low is not as common as some other OBDII codes, but it can still occur due to various factors such as sensor malfunctions or wiring issues.
9. Can a DIY enthusiast with basic automotive knowledge repair the OBDII code C0138 in a Pontiac?
- Depending on the specific cause of the C0138 code, DIY enthusiasts with basic automotive knowledge may be able to address the issue by checking wiring, replacing sensors, or topping up brake fluid. However, more complex issues may require professional intervention.
10. How can I prevent the OBDII code C0138 from recurring in my Pontiac?
- To prevent the C0138 code from recurring, it is essential to perform regular maintenance on your Pontiac's brake system, including checking brake fluid levels, inspecting wiring for damage, and addressing any warning signs promptly to avoid potential issues.
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