DTC B2A10-14

DTC B2A10-14  : Brake Light Drive Relay Circuit Malfunction

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

DTC (IDAS)

1. VSA system DTCs check

   -1. Turn the vehicle to the ON mode.

   -2. Check for VSA system DTCs with the HDS.

   DTC Description	DTC	Freeze Frame

   Are any DTCs indicated?

   YES 

   Go to the indicated DTC's troubleshooting .

   NO 

   Go to step 2.

2. Problem verification

   -1. Clear the DTC with the HDS.

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

   -3. Select Integrated Driver Support System from the DRIVING SUPPORT menu, then enter Brake Light from the FUNCTION TEST menu.

   -4. Do the brake light relay function test with the HDS.

   Brake Light Relay

   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. 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. Multipurpose camera unit check (update)

   -1. Update the multipurpose camera unit if it does not have the latest software .

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

   -3. Select Integrated Driver Support System from the DRIVING SUPPORT menu, then enter ACC RELAY from the FUNCTION TEST menu.

   -4. Do the brake light relay function test with the HDS.

   Brake Light Relay

   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 

   Check for loose terminals in the multipurpose camera unit 20P connector. If the multipurpose camera unit was updated and the symptom/indication is still present, replace the multipurpose camera unit .

   NO 

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