Headlamps Operate in Blackout Mode. Chevrolet Chevy K Silverado

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2005 🢒 Chevy K Silverado - 4WD 🢒 Body 🢒 Lighting Systems 🢒 Headlamps Operate in Blackout 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 Lighting Circuit Operation
2	Place blackout (B/O) service switch into the blackout (B/O) mode. Connect a test lamp from cavity 85 at the blackout (B/O) lighting drive relay and ground. Does the test lamp illuminate?	Go to Step 4	Go to Step 3
3	Replace blackout (B/O) drive relay. Did you complete the replacement?	Go to Step 5	___
4	Replace blackout (B/O) service switch. Refer to Blackout Lamp Switch Replacement . Did you complete the replacement?	Go to Step 5	___
5	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2