Service manual

8-108 Lighting Systems Body and Accessories
2006 LSSV Service Manual Supplement
Low Beam Headlamps Operate in Blackout (B/O) Mode (cont’d)
Step Action Yes No
3
1. Disconnect the blackout (B/O) service switch connector
from the switch.
2. Connect a test lamp at cavity C of the connector and
ground.
Does the test lamp illuminate?
Go to Step 5 Go to Step 4
4
Replace the blackout (B/O) service switch. Refer to Blackout
(B/O) Switch Replacement.
Did you complete the replacement? Go to Step 9
___
5
Locate and repair the short to voltage on circuit 912 (OG).
Did you complete the repair?
Go to Step 9
___
6
Remove the low beam lamp interrupt relay from the relay
module.
Are the backup lamps illuminated? Go to Step 8 Go to Step 7
7
Replace the low beam interrupt relay.
Did you complete the replacement? Go to Step 9
___
8
Locate and repair the short to voltage on circuit 1970 (PK/WH).
Did you complete the repair? Go to Step 9
___
9
Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2