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When you turn on the headlights, do you get a warning light in the Dashboard that a bulb is out?
To just restate and maybe clarify what was already stated:
Unlike many older cars, Volvos has a Bulb Out Sensor.. the power from the Headlight switch does not go directly to the headlights. The power for the headlights (low beams) passes through this thing called a Bulb Failure Sensor the power goes into this sensor and comes out on two wires. One for the right side of the car, one for the left. This sensor compares Currnt to the bulbs so if on side is out, the Sensor detects an imbalance and you get a dashboard light telling you you have a Light out.
Not sure of the color coding or the Pin numbers on '80s cars for the wires exiting the Sensor but I would check there to see if you have voltage coming out of the sensor for both the left and right side.
P.S. good job on the Wiper Motor, The gluey gack they put on to waterproof them makes that job a bit inconvienent
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'75 Jeep CJ5 345Hp ChevyPwrd, two motorcycles, '85 Pickup: The '89 Volvo is the newest vehicle I own. it wasn't Volvos safety , it was Longevity that sold me http://home.no.net/ebrox/Tony's%20cars.htm
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