Here's a breakdown of the process, but I strongly recommend seeking professional help from a qualified mechanic or auto electrician. They have the tools and expertise to do this safely and effectively.
WARNING: Before you begin any work on your car's electrical system, disconnect the negative (-) terminal of your battery to prevent short circuits and injury.
Steps (Proceed with extreme caution):
1. Locate the Alarm Control Module (ACM): This is the brain of the alarm system. Its location varies depending on the specific alarm system installed in your Voyager. Common locations include:
* Under the dash: Look for a small black box with wires connected to it.
* Behind the glove compartment: Sometimes it's tucked away in less obvious places.
* Under the hood: Less common, but possible.
* In the trunk: Also less common, but worth a check.
2. Trace the Power Wire: Once you locate the ACM, carefully trace the wires connected to it. Look for a thick, usually red or yellow wire, which is the main power supply. This is often fused.
3. Disconnect the Power Wire: This is the crucial step. You need to disconnect this power wire from the ACM. You might need to carefully unclip connectors or use wire cutters (only if absolutely necessary and you know what you're doing). Take photos before disconnecting anything to help with reconnection later. Note which wire goes where.
4. Identify the Battery Backup (Optional): Some alarms have a backup battery. If you can locate it, you can disconnect it as well. This is usually a small, round battery.
5. Reconnect the Battery: After disconnecting the alarm's power, reconnect the negative (-) terminal of your battery. Check if the battery drain has stopped.
Important Considerations:
* Factory Alarm vs. Aftermarket Alarm: If it's a factory-installed alarm, disconnecting it might be more complex. You'll likely need a wiring diagram specific to your Voyager's year and model.
* Wiring Diagrams: A wiring diagram for your 1998 Plymouth Voyager (if you can find one specifically showing the alarm system) would be extremely helpful. You might find one online through repair manuals or automotive forums.
* Damage Risk: Incorrectly disconnecting wires could damage your car's electrical system, potentially causing more problems than just a drained battery.
* Security: Disconnecting the alarm removes your anti-theft protection.
Again, I strongly urge you to seek professional help. This process is complex and risky if you're not experienced with automotive electrical systems. The cost of professional help is far less than the potential cost of damage you might cause trying to do it yourself.
