Re: Battery Drain Problem
Originally Posted by
Infinity
If all those looked good, then you have narrowed it down to the central locking pump module which houses the brains of the security system, vacuum pump for the door locks, and as you indicated the interior lights.
There can be a few things that have or are happening.
1) SRT6 models have reports (including myself) of water leaks that enter the car either from the rear wing panel seal or in some instances the rubber gasket that sits between the gas filler neck and the interior of the car. If water gets in there and is not caught in time then the level rises up and soaks the central locking pump module as the factory did not leave any drain holes open, they are instead plugged with rubber plugs.
2) You may have a situation where you have a vacuum leak in the door locking system which may be causing the pump to run to maintain vacuum in the door lock system and as such producing a draw above normal rest. The challenge here is to find the leak which means you must check all the yellow tubing from the module to the doors and trunk latch. You may be able to plug the ports on the module and see if the draw stops to confirm if indeed this is the case.
3) Recheck the glove box - the light is different than the relay on the switch. Its easy to pop out just unplug the entire switch assembly. In my case the relay was hanging up internally and would trigger the alarm at random. Not saying this is happening to you but the relay can draw without the light going on.
Thank you for the valuable information. When I checked the pump,the housing in the trunk was dry; there is no sign of water. I measured the drain continuously during the day and night with doors locked and unlocked. This went on for several days, the drain was pretty consistent. When the doors were unlocked overnight, wouldn’t you think that the pump will quit searching if there is a vacuum leak? Then the drain should drop, that is not the case because the drain is the same overnight. When I drive, the doors lock without F9 on, when I open the driver door, the other door and the trunk unlock, indicating the availability of vacuum. However, it is a good idea to unplug the pump and see. I shall be reporting my findings when I get to the pump again.
Last edited by zalsaigh; May 2, 2013 at 10:59 PM.