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1975 factory alarm question?

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Old Jan 16, 2019 | 09:38 AM
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Default 1975 factory alarm question?

When the alarm goes off - Does it sound the horn and flash the lights or just sound the horn? 1975 factory alarm

Thanks Mike
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Old Jan 16, 2019 | 10:19 AM
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It only sounds the horn, which is located drivers side rear beside the antenna.
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Old Jan 16, 2019 | 10:21 AM
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Thanks for the reply
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Old Jan 17, 2019 | 11:19 AM
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I know this subject has been beaten on for a long time, But I have a few questions. Here is what I have

1. The system works

2. The anti-theft tamper switch is broken – threaded part missing. Unplugged broken switch and put a jumper wire to prongs on plug

3. Hood is off car. Unplugged terminals at hood switch

4. Close both doors and Door ajar light goes off. When doors are open light works.

5. Key out of ignition

6. Turn key at fender to set alarm – As soon as I turn the key the horn starts to blow. This is where im having the issue, Not sure where to go from here.

Thanks Mike
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Old Jan 17, 2019 | 08:07 PM
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. My 76 had factory alarm that gave me problems.I got rid of it.
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Old Jan 17, 2019 | 08:41 PM
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Un jump the switch under the hood.

The system is a positive feed system . Any switch that makes contact with ground will trip the alarm.
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Old Jan 17, 2019 | 08:55 PM
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It's an easy system, the flasher just opens and closes the circuit..


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