DTC Troubleshooting: B2A10-14

DTC B2A10-14: Brake Light Drive Relay Circuit Malfunction

NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description	DTC	Freeze Frame
B2A10-14 Brake Light Drive Relay Circuit Malfunction

VSA system DTC check:

VSA system DTC check

?1.	Turn the vehicle to the ON mode.

?2.

Check for DTCs with the HDS.

DTC Description	DTC

Are any DTCs indicated?


	YES

Go to the indicated DTC's troubleshooting.?


	NO

Go to step 2.

Problem verification:

Problem verification

?1.	Clear the DTC with the HDS.

?2.	Turn the vehicle to the OFF (LOCK) mode, then the ON mode.

?3.

Select the Integrated Driver Support system in the DRIVING SUPPORT menu, then select the Brake Light in the Function Test.

Function test under these conditions:

	Shift the transmission to P position/mode
	Start the engine
	Release the brake pedal
	Press the MAIN switch is ON (ACC combination switch)

?4.	Do the brake light relay function test.

?5.

Check for DTCs with the HDS.

DTC Description	DTC	Freeze Frame
B2A10-14 Brake Light Drive Relay Circuit Malfunction

Is DTC B2A10-14 indicated?


	YES

The failure is duplicated. Check for loose terminals and poor connections in the multipurpose camera unit 20P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the multipurpose camera unit.?


	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.?