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Mastertech1, ASE Master Technician
Category: Car
Satisfied Customers: 2261
Experience:  30 years of all phases automotive diagnostics and repair
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High beams..lever..turn key,driving lights come on--turn H/L switch

Resolved Question:

No DRL and high beams /the blue light on the dash for high beams stays on--nothing happens when moving the lever back and forth for the high beams---head light switch on auto---turn key,driving lights come on--turn H/L switch to manual,no change
Suggestions???? thanks len
Submitted: 5 years ago.
Category: Car
Expert:  Mastertech1 replied 5 years ago.
HiCustomer Thank you for asking your question on JustAnswer. The other Experts and I are working on your answer. By the way, it would help us to know:

-What year is your Car?
-What make and model is your Car?
-How many miles are on your Car?
-What type of engine is in your Car?
-What have you already tried?

Thank you again for trusting us with your problem. Please reply as soon as possible so that we can finish answering your question.
Customer: replied 5 years ago.
99 GMC Envoy
4.3 Engine

Customer: replied 5 years ago.
99 GMC Envoy
4.3 Engine
interior light does not come on when opening the drivers door-it works all otherways
DRL over-ride does not do anything
dash dimmer works on instrument panel but wont turn on interior light

Expert:  Mastertech1 replied 5 years ago.
These units have a history of head light switch issues, This switch is a module, That contains circuits for all you have stated to be inop. Replace the switch assembly Thanks
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