OBD code C0049 indicates a problem with the Brake Fluid Level Sensor Circuit.
This affects the AntiLock Brake System (ABS).
Symptoms include the ABS Warning Light and Engine Light being illuminated.
Common causes are low brake fluid level, faulty sensor, or wiring issues.
It’s a moderate issue that should be addressed promptly.
A possible fix is to inspect and repair any damaged components or wiring connections related to the brake fluid level sensor circuit.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the c0049 OBD Code
The vehicle displays a warning light indicating an issue with the brake pressure sensor circuit (C0049).
- Symptoms: AntiLock Brake System (ABS) Warning Light ON.
- Engine Light ON (or Service Engine Soon Warning Light).
- Possible loss of ABS functionality.
- Brake pedal may feel different than usual.
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Causes of the c0049 OBD Code
Possible triggers for fault code C0049 include issues with the brake pedal position sensor.
- C0049 can be caused by a low brake fluid level.
- A faulty brake fluid level sensor.
- A brake fluid level sensor harness that is open or shorted.
- A brake fluid level sensor circuit with a poor electrical connection.
Fixing Error Code c0049 Step By Step
Replace the brake pressure sensor to address fault code C0049.
- To fix OBDII code C0049, review the possible causes related to the ABS control module.
- Visually inspect the wiring harness and connectors for any damage.
- Check the connector pins for signs of being broken, bent, pushed out, or corroded.
- If any issues are found, repair or replace the damaged components as necessary.
- Reset the ABS control module to clear the fault code.
- Test drive the vehicle to ensure the warning light does not reappear, indicating a successful repair.
Cost Of Fixing c0049 Fault Code
Diagnosing and repairing fault code C0049 typically involves inspecting and possibly replacing the right rear wheel speed sensor.
The cost to diagnose and fix OBD code C0049 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on labor rates, shop fees, and the complexity of the repair needed.
Details of the c0049 OBD Code
Fault code C0049 indicates an issue with the right rear wheel speed sensor circuit.
OBD code C0049 means Left Rear Wheel Speed Sensor Circuit Short to Battery.
This code is triggered by the Electronic Brake Control Module (EBCM) when it detects a short to battery in the circuit of the left rear wheel speed sensor.
The wheel speed sensors are part of the Antilock Braking System (ABS) and are responsible for monitoring the speed of each wheel to help prevent wheel lockup during braking.
Mechanic’s Tech Notes
For fault code C0049, check the steering angle sensor for calibration or wiring issues.
OBDII code C0049 typically indicates a problem with the transmission control module (TCM) power circuit.
To diagnose this issue, use a multimeter to check the TCM power and ground connections for proper voltage and continuity.
Additionally, utilize a scan tool to confirm communication between the TCM and other modules over the Controller Area Network (CAN) network.
If the wiring harness or connectors appear damaged, inspect them closely for issues like broken, bent, or corroded pins.
Reflashing the TCM software may be necessary to resolve the fault.
FAQ
OBD code C0049 indicates an issue with the Brake Fluid Level Sensor circuit. Check for low brake fluid level, faulty sensor, or wiring problems. Inspect and repair as needed.
Common symptoms for OBD code C0049 include ABS warning light and engine light on. Causes may be low brake fluid, faulty sensor, or wiring issues. Inspect and repair as needed.
Diagnose and repair OBD code C0049 by checking for low brake fluid level, faulty sensor, or wiring issues. Inspect harness, connectors, and sensor for damage or corrosion.
Wrap Up
If your ABS warning light is on and you see OBDII code c0049, it may indicate a fault with the right rear wheel speed sensor circuit.
This could be caused by a damaged sensor, faulty wiring, or poor connections.
To address OBDII code c0049, start by inspecting the right rear wheel speed sensor and its wiring harness for any visible damage.
Test the sensor’s resistance and check for proper voltage supply.
Ensure connectors are clean and securely attached.
Replace the sensor if necessary and repair any wiring issues found.
