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Compustar non remote starting issues

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=70730
Printed Date: May 18, 2025 at 9:11 PM


Topic: Compustar non remote starting issues

Posted By: hchan
Subject: Compustar non remote starting issues
Date Posted: January 14, 2006 at 12:31 AM

Me and a buddy just finished w/ my compustar install the other day (CM3000 FM Unit) on my 05 WRX STI.  2 strange things that's been happening... everytime I press on the clutch, my compustar makes a "click" noise and maunal start doesn't work, I would usually have to play with the ebrake and lock/unlock so I can start up the car manually.  Strange thing is that remote start works awesome no problems at all, it's just those few times when I cancel reveseration mode. 

Here's some background on the install...

1) THe Compustar wire that provides a ground during remote start is connected to the clutch switch. (When the clutch is pressed it sends out a ground.)

2) The NPS on my STI is grounded in neutral.  The NPS connected into the brake shutdown wire for the Compustar brain and is diode isolated. (The brake shutdown is a positive trigger, so if it sees +, it'll think the brake is depressed when the car is in gear, and it won't start.)
3) My STI has a transponder and I have a DEI 556U installed.  

Everytime I press on the clutch it sends a ground to the compustar and that's what probably making the noise. If I put in a diode (anode on the clutch wire side) that should should stop the clicking noise.   Do you think this has something to do w/ why manual starting doesn't work right?




Replies:

Posted By: catalin capota
Date Posted: January 14, 2006 at 3:56 AM
What's a NPS and STI?

The black negative out when running should be used with a relay. It provides a very low current it can be damaged quite easily.

The clicking sound is the alarm switching in/out of reserve mode. Do you by chance have your foot on the brake pedal when setting reservation mode?




Posted By: hchan
Date Posted: January 14, 2006 at 9:47 AM

catalin capota wrote:

What's a NPS and STI?

The black negative out when running should be used with a relay. It provides a very low current it can be damaged quite easily.

The clicking sound is the alarm switching in/out of reserve mode. Do you by chance have your foot on the brake pedal when setting reservation mode?

NPS = neutral position switch and I have a Subaru Impreza WRX STI.... sorry for not carifying.

I do usually have my foot on the brake when setting reservation mode.  How should I be connecting the relay?  I'm fairly new at this 12volt stuff.  Is it a better option then connecting a diode?  Thanks!





Posted By: hchan
Date Posted: January 14, 2006 at 1:36 PM
hchan] wrote:

P>
catalin capota wrote:

What's a NPS and STI?

The black negative out when running should be used with a relay. It provides a very low current it can be damaged quite easily.

The clicking sound is the alarm switching in/out of reserve mode. Do you by chance have your foot on the brake pedal when setting reservation mode?

NPS = neutral position switch and I have a Subaru Impreza WRX STI.... sorry for not carifying.

I do usually have my foot on the brake when setting reservation mode.  How should I be connecting the relay?  I'm fairly new at this 12volt stuff.  Is it a better option then connecting a diode?  Thanks!


How do I switch my compustar between manual and automatic mode?  Since my car as a neutral position switch and is hooked up to the e-brake I should have to worry about reservation mode anymore.  Thanks!






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