Headlights/Daytime Running Lights (DRL) Schematics

HEADLIGHTS/DAYTIME RUNNING LIGHTS (DRL) SCHEMATICS

Headlamp and Daytime Running Lamp Controls







Low Beam and Daytime Running Lamps (X88 or Z88)







Low Beam and Daytime Running Lamps (Z75 without T4Q)







Low Beam and Daytime Running Lamps (Z75 with T4Q)







High Beams







RPO Codes
RPO T4Q - Headlamps LED, Right Rule of Road, FMVSS
RPO Z75 - Market Brand Cadillac
RPO X88 - Market Brand Chevrolet
RPO Z88 - Market Brand GMC