Where is the low beam relay in an express bus?
November 9th, 2018, 8:38 AM
#1
Where is the low beam relay in an express bus?
We have a 2010 express bus at our shop. The headlights go on and off randomly. Fuses are fine, switch is fine, we are fairly certain we have a relay problem. We can not find this relay anywhere, the book doesn't show a relay, however the under the hood fuse box shows in a section labeled "Circuit board relay (not shown)" a low beam relay. Does anyone have experience with these and know where the relay is located?
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leobrit (October 24th, 2023)
November 9th, 2018, 2:29 PM
#3
PCB relays are non-replaceable (likely solid state devices), and your problem lies elsewhere. Check for loose connections, broken wires, bad switches etc.
November 10th, 2018, 9:41 AM
#4
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forward lighting relays are in the UHFB...your problem sounds like a loose ground wire though...there are some just inside the drivers kick panel and then some on both the drivers front frame and drivers side of the engine block..