C0138 Pontiac Code - Base Brake System Pressure Circuit/Sensor Low
Quick Answer
The Electronic Brake Control Module (EBCM) uses an input from 2 brake fluid pressure sensors to enhance ABS braking and vehicle stability if equipped. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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
- C0138 Pontiac indicates Base Brake System Pressure Circuit/Sensor Low.
- Common causes
- Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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.
Code C0138 Pontiac Description
What are the Possible Causes of the DTC C0138 Pontiac?
- Faulty Electronic Brake Control Module (EBCM)
- Electronic Brake Control Module (EBCM) harness is open or shorted
- Electronic Brake Control Module (EBCM) circuit poor electrical connection
How to Fix the DTC C0138 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C0138 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.
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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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