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Need manual for alpine sec 8047 with alpine sec 8447 remote, bought car with system but don;'t know how to work it and it seems the door locks don't open and close

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  • Joel Weiner
    Joel Weiner Jul 07, 2010

    Thanks for your reply but your explanation is for an experienced technician with equipemtnt like ;mulit-meters etc and then probing ecery circuit and connection, all something that I have no kowledge of, nor the time or exprertise , or most important the time and inclination to do all of this. Thanks again but a copy o fthe alpine manual I can look through and get simpler explanations would be more helpful.



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I dont have the manual, but its possible that your problem is just one error wiring; so, check this list to check it...

In the hopes of jogging someones memory here, I'm going to post what I have, know and think for the wiring schematic colour codes:

RED - Ignition
YELLOW (fused) - Battery
BROWN - No clue
BLACK - Ground
BROWN w/BLACK Stripe - (no clue)
GREEN w/WHITE Stripe - (-) hood / trunk input (I'm pretty sure)
GRAY - Radar Sensor
RED w/WHITE Stripe - Valet Switch
BROWN w/WHITE Stripe - Door trigger +/- programmable
BLUE - Siren
ORANGE - Starter Cut (I believe it's an armed output, not an alarming output)
YELLOW w/GRAY Stripe - Radar Sensor
GRAY w/BLUE Stripe - Radar Sensor
YELLOW w/GREEN Stripe - ext-2 (I think)
BLUE w/RED Stripe (fused) - Dome light supervision (COM)
BLUE w/YELLOW Stripe - Dome light supervision output (NO) (may be ext-3 programmable I think)

YELLOW w/WHITE Stripe (fused) - Parking lights (COM)
WHITE - Parking lights output (NO)
BROWN w/RED Stripe (fused) - Door lock COM
BROWN w/BLUE Stripe - Door lock NC
WHITE w/BROWN Stripe - Door lock NO
GREEN w/RED Stripe (fused) - Door Unlock COM
GREEN w/BLUE Stripe - Door unlock NC
WHITE w/GREEN Stripe - Door Unlock NO

THis SEC-8047 manual has been out from Alpine site, why? dont know, but, also, its possible that this other documents can helped:
- SEC-8028

- SEC-8063

Hope helps with this.

Posted on Jul 07, 2010

  • Joel Weiner
    Joel Weiner Jul 08, 2010

    Thanks for your response. I am not sure if your manual is similar or not. I was told by a local tech that it was different. I know the system works a little, but the locks do not go up and down by remote. There is a connection for the valet and the locks go down when you are driving but that is all. If I push the remote you can hear the sirens until they go off, but beyond all of that ???????????????. I was hopeing to locate a connection for the locks or instructions on what do do.


  • ZJ Limited
    ZJ Limited Jul 09, 2010

    OK, tell us news and keep in touch.


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  • Master
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Three Steps to Determine Door Lock Type
To determine what type of door lock switch you are working with, follow these three steps:

  1. Locate the harness plugged directly into the back of the door lock switch. If there are no external door lock switches, you will most likely have a vacuum type system or an *aftermarket door lock system with relays, or have an added actuator that needs relays.

  2. Next, with your multi meter, probe each of the wires in this harness and write down the readings during lock, unlock, and at rest positions of the switch. Be sure to measure for continuity to ground as well as positive DC voltage and pay close attention to any changes in voltage, resistance, and the duration of pulses. If the switch is illuminated when the lights are turned on, find this wire(s) first and ignore it.

  3. Now compare your readings to those listed below.
Door Lock Types
Single Wire Systems
There may be one, two, or three wires in the harness not counting the illumination wire(s), if any, and only changes in voltage and /or resistance on one wire to lock and unlock. Some of these will open a circuit to lock and ground a wire to unlock. Others will show a difference in resistance to ground or positive 12 V DC during lock or unlock or both. Vacuum type locks will change polarity on a single wire to lock and unlock. ( diagrams )

3 Wire Negative
There are three wires in the harness not counting the illumination wire(s), if any. One wire has continuity to ground at all times. Another wire only shows continuity to ground during lock and (+) 12 V DC at rest. The last wire only shows continuity to ground during unlock and (+) 12 V DC at rest. ( diagram )

3 Wire Positive
There are three wires in the harness not counting the illumination wire(s), if any. One wire has constant (+) 12 V DC at all times. Another wire only shows (+) 12 V DC during lock and ground at rest. The last wire only shows (+) 12 V DC during unlock and ground at rest. ( diagram )

4 Wire Reversal
There are four wires in the harness not counting the illumination wire(s), if any. One wire has constant (+) 12 V DC at all times. Another wire has continuity to ground at all times. A third wire reads nothing at rest, and (+) 12V DC during lock and continuity to ground during unlock. The fourth wire reads nothing at rest, and ground during lock and (+) 12V DC during unlock. ( diagram )

5 Wire Alternating (+) 12 V DC
There are four, five, or six wires in the harness not counting the illumination wire(s), if any. One or two of the wires has constant (+) 12 V DC at all times. One or two of the wires has continuity to ground at all times. Another wire reads continuity to ground at rest, and (+) 12V DC during lock. The last wire reads continuity to ground at rest, and (+) 12V DC during unlock. ( diagram )

Vacuum Type
There is no external switch (switch is contained in the drivers door lock actuator) or it has three wires not counting the illumination wire(s), if any. One wire always shows continuity to ground. Another always shows constant (+) 12 V DC. The third wire changes, reading continuity to ground or (+) 12 V DC depending on the position of the door locks. ( diagram )

Added Actuator(s)
The two wires of the actuator(s) will normally rest at ground, if wired as shown in this diagram, but may rest at (+) 12 V DC. Polarity changes on one wire during lock and on the other wire during unlock.

*If you are dealing with an aftermarket door lock system, locate and measure each coil wire of the lock and unlock relays. Then connect to the wires that activate each relay accordingly. If the system has a relay module, it may also have two wires (pig tail) that will energize the coils of the internal relays. These will usually be negative inputs. Some will have both positive and negative inputs to work with any alarm or keyless entry without the need for additional relays. ( diagram )

These applications will be similar to others, but will require additional connections, parts, or both. ( diagrams )
Door Lock/Switch Types:
Determining Switch Types
Door Lock Types

Door Locks:
Determining Switch Types
Multiple Wire Systems
Single Wire Systems
Special Systems
Add Auto Lock/Unlock Relays:
Converting Polarity
Starter Interrupts
Door Locks
Illuminated Entry & Light Flash
Special Applications Car Security:
Basic Connections (inputs)
Basic Connections (outputs)
Car Alarm Modules
Car Alarm Sensors / Triggers
Door Locks
Light Flash / Illuminated Entry
Starter Interrupts
Accessories & Add-ons
the12volt's Application Guide
the12volt's Install Bay --> -->

Posted on Jul 07, 2010


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