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sprinkles08, ASE Certified Technician
Category: Hyundai
Satisfied Customers: 23001
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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How do you remove, test the fuse + 2 and + 4
, Low beam

Customer Question

Customer: How do you remove, test the fuse B+ 2 and B+ 4
JA: Thanks. Can you give me any more details about your issue?
Customer: Low beam on right side of 2012 Sonata does not work. Original bulb and new bulb have been put in the socket. Both bulb show continuity with tested with a meter
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Submitted: 1 year ago.
Category: Hyundai
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

If you have one headlamp not working then the issue can't be a blown fuse. A single headlamp not working can be the bulb, which you've ruled out, a wiring issue, or a failure in the junction block. The headlamps are controlled by a module within the junction block.

What will need to be done from this point is test the low beam circuit, which is the red wire. It will need to be checked for a short to ground, and if ok then the next step would be to either load test the wire from the junction block to the light, or check or power leaving the junction block. If there is power leaving the junction block but there is none at the bulb then you have an open circuit in between.

If there is no power leaving the junction block, it doesn't return after a battery disconnect and the circuit isn't shorted to ground then the issue is in the junction block.