VSA DTC Troubleshooting: 65-11

DTC 65-11: Brake Fluid Level Switch Circuit Malfunction

NOTE:

	Bleeding the brake system while pressing the engine start/stop button to select the ON mode can cause this DTC.
	Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

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

Brake fluid level check:

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: Front, rear, and replace worn out brake pads.?
	Add brake fluid and recheck.?

Problem verification:

Problem verification

?1.	Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

?2.	Clear the DTC with the HDS.

?3.	Turn the ignition switch to LOCK (0), then turn it to ON (II) again, or select the OFF mode, then the ON mode.

?4.

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.?

Gauge control module check 1:

Gauge control module check 1

?1.	Release the parking brake.

?2.	Turn the ignition switch to LOCK (0), then turn it to ON (II) again, or select the OFF mode, then the ON mode.

?3.	Check the brake system indicator in the gauge control module.

Does the indicator come on then go off?


	YES

Go to step 7.


	NO

Go to step 4.

Gauge control module check 2:

Gauge control module check 2

?1.

Check the parameter(s) below with the HDS.

Signal	Current conditions
Signal	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:

Brake fluid level switch check

?1.	Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.

Disconnect the following connector.

Brake fluid level switch 2P connector

?3.

Check the parameter(s) below with the HDS.

Signal	Current conditions
Signal	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 LEVEL SW line):

Shorted wire check (BRAKE LEVEL SW line)

?1.	Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.

Disconnect the following connector.

Gauge control module connector A (32P)

?3.

Check for continuity between test points 1 and 2.

Test condition	IG LOCK (0) or OFF mode
	Brake fluid level switch 2P connector: disconnected
	Gauge control module connector A (32P): disconnected
Test circuit	BRAKE LEVEL SW
Test point 1	Brake fluid level switch 2P connector No. 1 (GRN)
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 LEVEL SW wire is OK. Replace the gauge control module.?

VSA modulator-control unit check (update):

VSA modulator-control unit check (update)

?1.	Update the VSA modulator-control unit if it does not have the latest software.

?2.	Turn the ignition switch to LOCK (0), then turn it to ON (II) again, or select the OFF mode, then the ON mode.

?3.

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 21P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit.?


	NO

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