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battery draining, info

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=75792
Printed Date: September 15, 2025 at 1:33 PM


Topic: battery draining, info

Posted By: dea,can
Subject: battery draining, info
Date Posted: April 06, 2006 at 5:00 PM

Vehicles battery is getting drained. Printable Version posted_image

Symptom: The vehicles battery is constantly being drained when the vehicle sits for a long period of time.

Cause: The bypass kits ground-out-while-running is receiving a either a constant ground or being pulsed even when the remote starter is not activated.

Situation (a): The remote-starters ground-out-while-running is being used to activate a second ignition relay and is being shared with the bypass kit. Depending on how the relay is wired the ground out while running may bleed current through the coil of the relay to ground and in this case the bypass kit will always receive a constant ground.

Solution (a): Isolate the shared ground-out-while-running wire using 1A diodes or move the high-side of the relays coil to constant power instead of the primary ignition or accessory wire.

Situation (b): Some older remote starters will frequently pulse the ground-out-while-running wire.

Solution (b): A relay will need to be inserted in order to keep the bypass kit from receiving these short pulses.

Recommendations: In any case the ground-out wire should be tested with an ohm-meter to ensure that there is an open circuit from the ground-out-while-running and ground when the remote starter is not active.



-------------
dragon



Replies:

Posted By: john ogrady
Date Posted: April 06, 2006 at 5:18 PM
Do a parasitic draw test.Hook up a DC ampmeter to the battery.remember it has to be connected in series with the battery let it sit for min. 45 min to put the computers to sleep in your vehicle.Min spec. for draw in no more than 50 milliamps.If not start pulling fuses or disconnecting modules until the circuit or module is isolated.





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