Service manual

8-96 Lighting Systems Body and Accessories
2006 LSSV Service Manual Supplement
Blackout (B/O) Headlamp Inoperative (cont’d)
Step Action Yes No
8
Locate and repair open in circuit 901 (TN/WH) wire between
blackout (B/O) lamp cavity A and blackout (B/O) drive relay
cavity 85.
Did you complete the repair? Go to Step 20
___
9
Connect a test lamp at circuit 911 (PK) wire between blackout
B/O) drive relay cavity 87 and ground.
Does the test lamp illuminate?
Go to Step 10 Go to Step 11
10
Connect test lamp at circuit 915 (WH) wire cavity 86 and cavity
87 of the blackout (B/O) drive relay.
Does the test lamp illuminate? Go to Step 13 Go to Step 15
11
Connect a test lamp from blackout (B/O) service switch cavity
A circuit 911 (PK) and ground.
Does the test lamp illuminate? Go to Step 12 Go to Step 14
12
Locate and repair open in circuit 911 (PK) between blackout
(B/O) service lamp switch and blackout (B/O) drive relay.
Did you complete the repair? Go to Step 20
___
13
Replace blackout (B/O) drive relay.
Did you complete the replacement? Go to Step 20
___
14
Connect a test lamp from the blackout (B/O) service switch at
cavity B circuit 40 (OG) and ground.
Does the test lamp illuminate?
Go to Step 19 Go to Step 18
15
1. Disconnect blackout (B/O) headlamp switch.
2. Connect a self-powered test lamp between blackout
(B/O) headlamp switch cavity E circuit 150 (BK) and
ground.
Does the test lamp illuminate? Go to Step 16 Go to Step 17
16
Replace blackout (B/O) headlamp switch. Refer to Blackout
(B/O) Switch Replacement.
Did you complete the replacement? Go to Step 20
___
17
Locate and repair open in circuit 150 (BK) wire between
blackout (B/O) headlamp switch and ground.
Did you complete the repair?
Go to Step 20
___
18
Locate and repair open in circuit 40 (OG) wire between
connector C241 and blackout (B/O) service lamp switch cavity
B.
Did you complete the repair? Go to Step 20
___
19
Replace blackout (B/O) service switch. Refer to Blackout (B/O)
Switch Replacement.
Did you complete the replacement? Go to Step 20
___
20
Operate the system in order to verify the repair.
Did you correct the condition? System OK Go to Step 2