DTC C0049-7B
DTC C0049-7B : Brake Fluid Level Too Low
NOTE:
- Before you troubleshoot, review the general troubleshooting information - Refer to:
- Bleeding the brake system while turn the vehicle to the ON mode can cause this DTC.
| DTC Description | DTC | Freeze Frame |
|---|---|---|
| C0049-7B Brake Fluid Level Too Low |
DTC (VSA)
- Problem verification
- 1. Turn the vehicle to the ON mode.
- 2. Clear the DTC with the HDS.
- 3. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
- 4. Wait 60 seconds or more.
- 5. Check for DTCs with the HDS.
DTC Description DTC Freeze Frame C0049-7B Brake Fluid Level Too Low Is DTC C0049-7B indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting - Refer to:
How to Troubleshoot the VSA System (2014 2015 2016) or
How to Troubleshoot the VSA System (2017 2018 2019 2020)
If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.
- Brake fluid level check
- 1. Check the brake fluid level in the master cylinder reservoir.
Is the brake fluid level OK?
YES
Go to step 3.
NO
Check for worn brake pads or brake fluid leaks.
- Inspect the brake lines and hoses for leaks and repair as needed. - Refer to:
- Inspect the front brake pads and replace worn out brake pads. - Refer to:
- Inspect the rear brake pads and replace worn out brake pads. - Refer to:
- Add brake fluid and recheck.
- Gauge control module check 1
- 1. Release the parking brake.
- 2. Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.
- 3. Check the brake system indicator (red) in the gauge control module.
Does the indicator come on, then go off?
YES
Check for loose terminals and poor connections in the VSA modulator-control unit 38P connector. If they are OK, replace the VSA modulator-control unit .
NO
Go to step 4.
- Gauge control module check 2
- 1. Check the parameter (s) below with the HDS.
Signal Current conditions Values Unit BRAKE FLUID LEVEL Does the HDS indicate ENOUGH?
YES
Replace the gauge control module .
NO
Go to step 5.
- Brake fluid level switch check
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Brake fluid level switch 2P connector - 3. Turn the vehicle to the ON mode.
- 4. Check the parameter (s) below with the HDS.
Signal Current conditions Values Unit BRAKE FLUID LEVEL Does the HDS indicate ENOUGH?
YES
Replace the brake fluid reservoir (brake fluid level switch is included) .
NO
Go to step 6.
- Shorted wire check (BRAKE FLUID LVL line)
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the following connector.
Gauge control module connector A (32P) - 3. Check for continuity between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Brake fluid level switch 2P connector: disconnected Gauge control module connector A (32P): disconnected Test point 1 Brake fluid level switch 2P connector (female terminals) No. 1: Test point 2 Body ground Is there continuity?
YES
Repair a short to body ground in the wire between the gauge control module and the brake fluid level switch.
NO
The BRAKE FLUID LVL wire is OK. Replace the gauge control module .