DEI Sensor Current Draw

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=13599
Printed Date: May 17, 2024 at 4:31 PM

Topic: DEI Sensor Current Draw

Posted By: pinchy
Subject: DEI Sensor Current Draw
Date Posted: May 16, 2003 at 11:56 AM

I was wondering if anyone knew the current draw of a DEI radar sensor (508D) and a motion/tilt sensor (507T)? I have them both sensors wired up to the GND when armed pin of my 790XV and it's only rated for 500mA. I'm wondering if I'm overloading the GND when armed pin and that's why my sensors are acting so funny.

Replies:

Posted By: auex
Date Posted: May 16, 2003 at 5:15 PM

Define funny.

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Posted By: jayts95
Date Posted: May 16, 2003 at 5:39 PM

Did you diode isolate the orange wire on your 790XV?

Posted By: pinchy
Date Posted: May 16, 2003 at 5:57 PM

Yep, I did put a diode on the orange wire after I got a copy of the 790XV install manual. This is how I put it in:

posted_image

The weird thing is the motion/tilt sensor keeps giving random false alarms and now I can't get the radar sensor to produce a warn away signal even with the sensativity turned all the way up. I checked the power and grounds to the sensors and they all seem to work correctly, 0V unarmed and 12V armed. My only guess is that I'm overloading the GND when armed pin since it can only source 500mA and this site says relays use about 200mA, so that's taken by my starter kill relay. I'm wondering if the 508D and 507T sensors need more than 300mA?