Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Pinpoint Test L: C0049:01, C0049:7B: Notes
Normal Operation and Fault Conditions
The brake fluid level switch is hardwired to the ABS module, the module monitors the switch and brake fluid level. If a circuit fault or fluid loss is detected, a DTC is set.
REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS C0049:01 | Brake Fluid Level: General Electrical Failure | Sets when the ABS module detects a short to ground, voltage or an open circuit in the brake fluid level switch or circuits. |
| ABS C0049:7B | Brake Fluid Level: Low Fluid Level | Sets when the ABS module determines the fluid level in the hydraulic system is low. |
Possible Sources
- Wiring, terminals or connectors
- Leak in the hydraulic system
- Brake fluid level switch
- EBB unit
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.