DTC B1085

DTC B1085  : Head Light Low Beam Power Source Abnormality

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .

DTC (Relay Control Module)

1. Problem verification

   -1. Clear the DTCs with the HDS.

   -2. Turn the combination light switch to the ON position.

   -3. Wait for at least 6 seconds.

   -4. Check for DTCs with the HDS.

   DTC Description	DTC
   B1085 Head Light Low Beam Power Source Abnormality

   Is DTC B1085 indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time.

2. Headlight operation check

   -1. Turn the combination light switch ON position then check the status of the headlights.

   Does one side of headlight go off?

   YES 

   Go to step 3.

   NO 

   Go to step 4.

3. Headlight check

   -1. Swap the left headlight and the right headlight .

   Are the symptoms swapped left and right?

   YES 

   Replace the failure headlight .

   NO 

   Replace the relay control module .

4. Shorted wire check (H/L_LO_SIG line)

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

   -2. Disconnect the following connectors.

   Relay control module connector B (10P) Left headlight 8P connector Right headlight 8P connector

   -3. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Relay control module connector B (10P): disconnected Left headlight 8P connector: disconnected Right headlight 8P connector: disconnected
   Test point 1	Relay control module connector B (10P) No. 9
   Test point 2	Body ground

   Is there 1.0 MΩ or more?

   YES 

   Replace the relay control module .

   NO 

   Repair a short to ground in the wire.