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Head Up Display not working-Help

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Old 03-31-2004, 06:46 AM
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Head Up Display not working-Help

I have a 1989 240SX. The HUD is not displaying the speed in the dash or in the winshield. The odometer, trip mileage, tach, and all the dash lights work. I tested the speed sensor and it puts out 2.4 volts. I read the the voltage should be 0.5 volts. Would too much voltage be a problem and why? Do I did to replace the speed sensor? I would appreciate any help to avoid wasting time and money. Thanks, Karl
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Old 03-31-2004, 06:02 PM
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Fuses?
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Old 04-01-2004, 07:00 AM
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All the fuses check out fine. Does anyone know where the Head Up Display Control Unit is located? Karl
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