DTC C0049-7B

DTC C0049-7B  : Brake Fluid Level Too Low

NOTE: 

• Before you troubleshoot, review the general troubleshooting information .
• Bleeding the brake system while turn the vehicle to the ON mode can cause this DTC.

DTC (VSA)

1. 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
   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 .

2. 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.
   • Inspect the front brake pads and replace worn out brake pads.
   • Inspect the rear brake pads and replace worn out brake pads.
   • Add brake fluid and recheck.
3. 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 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit .

   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_LEVEL_SW line)

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

   -2. Disconnect the following connector.

   Gauge control module connector A (32P)

   -3. Measure the resistance 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. 2:
   Test point 2	Body ground

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

   Is there 1 MΩ or more?

   YES 

   The BRAKE_LEVEL_SW wire is OK. Replace the gauge control module .

   NO 

   Repair a short to body ground in the wire between the gauge control module and the brake fluid level switch.