Service manual

8-104 Lighting Systems Body and Accessories
2006 LSSV Service Manual Supplement
Backup Lamps Operate in Blackout (B/O) Mode
Step Action Yes No
Schematic Reference: Exterior Lights Schematics and Interior Lights Schematics
1
Did you review Blackout (B/O) Lighting Description and
Operation?
Go to Step 2
Go to Blackout
(B/O) Lighting
Circuit Operation
2
1. Place the blackout (B/O) service switch in blackout
(B/O) mode.
2. Connect a test lamp at cavity C of the blackout (B/O)
switch and ground.
Does the test lamp illuminate? Go to Step 3 Go to Step 6
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 backup lamp interrupt relay from the relay module.
Are the backup lamps illuminated? Go to Step 8 Go to Step 7
7
Replace the backup interrupt relay.
Did you complete the replacement? Go to Step 9
___
8
Locate and repair the short to voltage on circuit 24 (GN/BK).
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
Park Lamps Operate in Blackout (B/O) Mode
Step Action Yes No
Schematic Reference: Exterior Lights Schematics and Interior Lights Schematics
1
Did you review Blackout (B/O) Lighting Description and
Operation?
Go to Step 2
Go to Blackout
(B/O) Lighting
Circuit Operation
2
1. Place the blackout (B/O) service switch in blackout
(B/O) mode.
2. Connect a test lamp at cavity C of the blackout (B/O)
switch and ground.
Does the test lamp illuminate? Go to Step 3 Go to Step 6