DTC: C0049-7B

DTC C0049-7B  : Brake Fluid Level Too Low

NOTE: 

• Bleeding the brake system while turn the vehicle to the ON mode can cause this DTC.
• Before You Troubleshoot, Review The General Troubleshooting Information .

DTCs (VSA)

1. 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 2.

   NO 

   Check for worn brake pads or brake fluid leaks.

   • Inspect The Brake Lines And Hoses For Leaks and repair as needed.
   • Inspect the brake pads. Refer to:

     Front

     Rear

     and replace worn out brake pads.

   • Add brake fluid and recheck.
2. 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 start the engine.

   - 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 3.

   NO 

   Intermittent failure, the system is OK at this time. Refer To Intermittent Failures Troubleshooting . 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.

3. Gauge control module check 1

   -1. Release the parking brake.

   - 2. Turn the vehicle to the OFF (LOCK) mode, then start the engine.

   - 3. Wait 60 seconds or more.

   - 4. Check the brake system indicator (red) in the gauge control module.

   Does the indicator come on, then go off?

   YES 

   Go to step 7.

   NO 

   Go to step 4.

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.

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.

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 32P connector

   - 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 32P connector: disconnected
   Test point 1	Brake fluid level switch 2P connector No. 1
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   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 .

7. VSA modulator-control unit check (substitution)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Substitute a known-good VSA modulator-control unit.

   - 3. Turn the vehicle to the OFF (LOCK) mode, then start the engine.

   - 4. Wait 10 seconds or more.

   - 5. Check for DTCs with the HDS.

   DTC Description	DTC	Freeze Frame

   Is DTC C0049-7B indicated?

   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. Refer to:

   Replace The VSA Modulator-Control Unit .

   NO 

   Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.