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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15181
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Chevrolet Avalanche 1500 Z71: No taillights but brake and signals

Customer Question

No taillights but brake and signals fine on my 2000 silverado . Trailer lights work fine. New light switch couple yeRs ago. New board at bumper. Suggestions?
Submitted: 1 year ago.
Category: Chevy
Expert:  Gary replied 1 year ago.
I am sorry for the long waitdo both license plate lights work ?
Customer: replied 1 year ago.
No they dont gary.
Expert:  Gary replied 1 year ago.
and with the parking lights ON the fuse called RR PRK and LR PRK show 12 volts on both sides of both fuses testing them in place through the little openings in the tops of those fuses ?if both do with the parking lights on does the brown wire show 12 volts at the brown wire at the LR tail light assembly ?
Expert:  Gary replied 1 year ago.
if it does NOT and the brown wires as the license plate bulbs do NOT show 12 volts get to the rear junction lamp bus block and unplug it and see if the terminals are dirty or loose in the connector
Customer: replied 1 year ago.
Connection looks good, but forgot to say dash lights dim when turn headlamps on
Expert:  Gary replied 1 year ago.
do those 2 fuses show 12 volts when you have the parking lights ON ?
Expert:  Gary replied 1 year ago.
do those 2 fuses show 12 volts when you have the parking lights ON ?
Expert:  Gary replied 1 year ago.
if the both show 12 volts unplug connector C1 out of the junction lamp bus block and see if terminal G a brown wire shows 12 volts with the parking lamps on
Customer: replied 1 year ago.
Do not have a ohm tester other than one for our house.
Expert:  Gary replied 1 year ago.
we need to see where we have and do not have 12 volts