Tail Light Wiring
#1
Tail Light Wiring
Why is there a double filament bulb (1157) in the tail light socket? There are two spade connectors with wires connected to them but only one wire is hot when parking or tail lights are on. I'm also getting a "bulb out" warning light on the dash when I step on brakes but all three brake light bulbs are functioning? TD
#2
#3
Thanks for the tips Pierce. I'm thinking this is akin to the grounding problems many "old
Volvos" have. Since they stay in service so much longer than other cars, they develop corrosion in places un-explored by the average mechanic. I just didn't think my '93 has reached that age yet! Does the Bulb sensing circuit have something to do with the tail-light bulb having a double filament? I can't see any reason for two filaments since even with one burned out, both the parking-light & the tail-lights all work.
Volvos" have. Since they stay in service so much longer than other cars, they develop corrosion in places un-explored by the average mechanic. I just didn't think my '93 has reached that age yet! Does the Bulb sensing circuit have something to do with the tail-light bulb having a double filament? I can't see any reason for two filaments since even with one burned out, both the parking-light & the tail-lights all work.
#6
#8
Will do. Main thing is, all the lights are now working correctly!
But here's another strange electrical anomaly. Recently repaired horn button contacts in steering wheel thus had to remove airbag. All went well but when I was done, I noticed the wheel spline was one tooth off so I removed the wheel and corrected it. When I reinstalled the airbag this time the SRS light came on and stays on. Someone mentioned it happened because in my correcting the the steering wheel alignment I had turned on the key with the airbag disconnected. Does that sound plausible? If so, how can I correct it?
But here's another strange electrical anomaly. Recently repaired horn button contacts in steering wheel thus had to remove airbag. All went well but when I was done, I noticed the wheel spline was one tooth off so I removed the wheel and corrected it. When I reinstalled the airbag this time the SRS light came on and stays on. Someone mentioned it happened because in my correcting the the steering wheel alignment I had turned on the key with the airbag disconnected. Does that sound plausible? If so, how can I correct it?
#9
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enoble
Volvo 240, 740 & 940
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04-29-2011 05:07 PM