DTC 65-11: Brake Fluid Level Switch Circuit Malfunction

• 1. Check the brake fluid level in the master cylinder reservoir.

Is the brake fluid level OK? 

YES  : Go to step 2.

NO 

• INSPECT THE BRAKE LINES AND HOSES FOR LEAKS , and repair as needed.
• Inspect the brake pads: FRONT , REAR , and replace worn out brake pads.
• Add brake fluid and recheck.

• 1. Turn the ignition switch to ON (II).
• 2. Clear the DTC with the HDS.
• 3. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
• 4. Wait for at least 60 seconds.
• 5. Check for DTCs with the HDS.

  DTC Description	DTC	Freeze Frame
  65-11 Brake Fluid Level Switch Circuit Malfunction

Is DTC 65-11 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.

• 1. Release the parking brake.
• 2. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
• 3. Wait for at least 60 seconds.
• 4. Check the brake system indicator in the gauge control module.

Does the indicator come on then go off? 

YES  : Go to step  6.

NO  : Go to step 4.

• 1. Turn the ignition switch to LOCK (0).
• 2. Disconnect the following connector.

  Brake fluid level switch 2P connector

• 3. On the switch side, check for continuity between test points 1 and 2.

  Test condition IG LOCK (0)

  Brake fluid level switch 2P connector: disconnected

  Test circuit BRAKE LEVEL SW, GND

  Test point 1 Brake fluid level switch 2P connector No. 1

  Test point 2 Brake fluid level switch 2P connector No. 2

  Fig 2: Checking Continuity Between Brake Fluid Level Switch 2P Connector No. 1 And 2

  Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity? 

YES  : Replace the master cylinder (brake fluid level switch is included)  See BRAKE MASTER CYLINDER INSPECTION or BRAKE MASTER CYLINDER REMOVAL AND INSTALLATION .

NO  : Go to step 5.

• 1. Disconnect the following connector.

  Gauge control module 32P connector

• 2. Check for continuity between test points 1 and 2.

  Test condition IG LOCK (0)

  Brake fluid level switch 2P connector: disconnected

  Gauge control module 32P connector: disconnected

  Test circuit BRAKE LEVEL SW

  Test point 1 Brake fluid level switch 2P connector No. 2 (GRY)

  Test point 2 Body ground

  Fig 3: Checking Continuity Between Brake Fluid Level Switch 2P Connector No. 2 (GRY) And Body Ground

  Courtesy of AMERICAN HONDA MOTOR CO., 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 LEVEL SW wire is OK. Replace the gauge control module  See Rewriting the ODO Data and Transferring the Maintenance Minder™ Data to a New Gauge Control Module or GAUGE CONTROL MODULE REMOVAL AND INSTALLATION .

• 1. Update the VSA modulator-control unit if it does not have the latest software  See VSA SENSOR NEUTRAL POSITION MEMORIZATION , VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION  or VSA MODULATOR-CONTROL UNIT UPDATE .
• 2. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
• 3. Wait for at least 60 seconds.
• 4. Check for DTCs with the HDS.

  DTC Description	DTC	Freeze Frame

Is DTC 65-11 indicated? 

YES  : Check for loose terminals in the VSA modulator-control unit 38P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit  See VSA SENSOR NEUTRAL POSITION MEMORIZATION , VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION  or VSA MODULATOR-CONTROL UNIT UPDATE .

NO  : Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.