C0138 Saturn 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 Saturn 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 Saturn Description
What are the Possible Causes of the DTC C0138 Saturn?
- 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 Saturn?
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 Saturn 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 Saturn Code
1. What are the common symptoms of OBDII code C0138 in a Saturn related to the Base Brake System Pressure Circuit/Sensor Low?
- Common symptoms include the illumination of the ABS warning light, a soft or spongy brake pedal feel, and potential loss of brake assist.
2. What are the possible causes of OBDII code C0138 in a Saturn related to the Base Brake System Pressure Circuit/Sensor Low?
- The code C0138 can be triggered by issues such as a faulty brake pressure sensor, low brake fluid level, damaged wiring, or a malfunctioning ABS module.
3. How serious is OBDII code C0138 in a Saturn related to the Base Brake System Pressure Circuit/Sensor Low?
- This code indicates a potential issue with the base brake system pressure circuit, which can affect the vehicle's braking performance. It is important to address this issue promptly to ensure safe operation of the vehicle.
4. Can I continue driving my Saturn with OBDII code C0138 related to the Base Brake System Pressure Circuit/Sensor Low?
- It is not recommended to drive the vehicle with this code present, as it may lead to compromised braking performance. It's best to have the issue diagnosed and repaired as soon as possible.
5. How can I diagnose OBDII code C0138 in my Saturn related to the Base Brake System Pressure Circuit/Sensor Low?
- Diagnosis typically involves using a scan tool to retrieve the trouble code, inspecting the brake pressure sensor and related wiring, and performing a brake system pressure test to identify the root cause.
6. What are some DIY repair tips for addressing OBDII code C0138 in a Saturn related to the Base Brake System Pressure Circuit/Sensor Low?
- DIYers can start by checking the brake fluid level, inspecting the brake pressure sensor for signs of damage, and ensuring all wiring connections are secure. If unsure, it's best to consult a professional mechanic for further diagnosis and repair.
7. Does resetting the OBDII code C0138 related to the Base Brake System Pressure Circuit/Sensor Low resolve the issue in a Saturn?
- Simply clearing the trouble code may temporarily turn off the warning light, but it will not fix the underlying problem causing the code. It's essential to diagnose and address the root cause to prevent future issues.
8. Can a faulty ABS module trigger OBDII code C0138 in a Saturn related to the Base Brake System Pressure Circuit/Sensor Low?
- Yes, a malfunctioning ABS module can potentially cause this code to be triggered, as the module plays a crucial role in monitoring and controlling the base brake system pressure circuit.
9. What is the typical cost to repair OBDII code C0138 in a Saturn related to the Base Brake System Pressure Circuit/Sensor Low?
- The cost of repair can vary depending on the specific cause of the issue. It's recommended to obtain a diagnostic from a qualified mechanic to determine the exact repair cost.
10. Is it necessary to have a professional mechanic address OBDII code C0138 in a Saturn related to the Base Brake System Pressure Circuit/Sensor Low?
- Due to the safety implications of brake system issues, it is advisable to have a professional mechanic diagnose and repair OBDII code C0138 to ensure the problem is properly addressed.
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