Another alarm question,part 2.
Thread Starter
Race Director
Joined: Dec 2003
Posts: 14,158
Likes: 939
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
Another alarm question,part 2.
Will the factory alarm wiring in a 75 interfere with an aftermarket alarm? I've been trying to install a Viper 5706V in my 75 and I just can't figure out the starter kill circuit. I've put alarms in cars years ago but this car ain't havin none of it. I've asked the question but just can't get any info that will work. I'm not using any options with this alarm other than the door pin switches and the starter kill.
Race Director
Joined: Nov 2006
Posts: 13,282
Likes: 7,863
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
The factory alarm is very basic. It sounds a horn, pulsating when a door or hood is opened. Thats it. No starter interrupt.
No immobiliser.
the wiring for the factory alarm is extremely basic. So if it's not switched on. Can't imagine how it could affect your aftermarket alarm.
And these C3's are not exactly on the top of car theves list.
If you have a manual that will keep all the young ones from stealing it anyway.
No immobiliser.
the wiring for the factory alarm is extremely basic. So if it's not switched on. Can't imagine how it could affect your aftermarket alarm.
And these C3's are not exactly on the top of car theves list.
If you have a manual that will keep all the young ones from stealing it anyway.
Race Director
Joined: Nov 2006
Posts: 13,282
Likes: 7,863
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
The door switches in these cars just go to ground when the pin pops out. The courtesy lights have power all the time. When the door opens, pin pops out it connects to ground.
Perhaps your aftermarket alarm is wired to get power from door switch? Not recognise a ground?
As per starter interrupt, Almost all aftermarket alarms have you cut wire to starter solenoid and put alarm in series. When alarm triggers it interrupts the power to engage the solenoid. Pretty basic.
If your alarm also has an immobiliser. Then it also cuts power to Distributor or ECU.
Perhaps your aftermarket alarm is wired to get power from door switch? Not recognise a ground?
As per starter interrupt, Almost all aftermarket alarms have you cut wire to starter solenoid and put alarm in series. When alarm triggers it interrupts the power to engage the solenoid. Pretty basic.
If your alarm also has an immobiliser. Then it also cuts power to Distributor or ECU.
Thread Starter
Race Director
Joined: Dec 2003
Posts: 14,158
Likes: 939
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
The door switches in these cars just go to ground when the pin pops out. The courtesy lights have power all the time. When the door opens, pin pops out it connects to ground.
Perhaps your aftermarket alarm is wired to get power from door switch? Not recognise a ground?
As per starter interrupt, Almost all aftermarket alarms have you cut wire to starter solenoid and put alarm in series. When alarm triggers it interrupts the power to engage the solenoid. Pretty basic.
If your alarm also has an immobiliser. Then it also cuts power to Distributor or ECU.
Perhaps your aftermarket alarm is wired to get power from door switch? Not recognise a ground?
As per starter interrupt, Almost all aftermarket alarms have you cut wire to starter solenoid and put alarm in series. When alarm triggers it interrupts the power to engage the solenoid. Pretty basic.
If your alarm also has an immobiliser. Then it also cuts power to Distributor or ECU.
Thread Starter
Race Director
Joined: Dec 2003
Posts: 14,158
Likes: 939
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
Race Director
Joined: Nov 2006
Posts: 13,282
Likes: 7,863
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
Sounds like you need to talk with the people who sold you this system. Doesn't appear to be working correctly.
