Micro 8008-04, Installation Instructions Manual

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P.16
8008_inst.7/7/04.qx
TYPE #2: 3-WIRE POSITIVE TRIGGER TYPE (Relays Or Inverter Required)
• This Type Door Of Locking System Is Common On Many GM’s And Other Makes. If You Were To Look At The Door
Lock/Unlock Switch In The Driver’s Door It Would Have 3 Wires Coming Out Of It. (A Lock Wire, An Unlock Wire, &
A Co12 Volt Positive Wire)
• The Lock & Unlock Wires Will Show A (+)12 Volt Positive Pulse Only While The Locking And Unlocking The Doors,
Otherwise They Will “Float”.
ALARM
BLUE(UNLOCK) (-)
GREEN
(LOCK)
(-)
TO VEHICLE LOCK WIRE TO VEHICLE UNLOCK WIRE
87
87A
85 86
30
(+) CONSTANT 12 VOLTS
USE 3.5 AMP FUSE
87
87A
85 86
30
(+) CONSTANT 12 VOLTS
USE 3.5 AMP FUSE
CONSTANT (+) 12 VOLTS
FUSE EACH AT 10 AMPS
(+)
CONSTANT (+) 12 VOLTS
FUSE EACH AT 10 AMPS
(+)
3-WIRE POSITIVE TRIGGER
TYPE #3: 5-WIRE REVERSING POLARITY TYPE
(Rest At Ground) (Relays Required)
• Reversing Polarity Is Often Confused With The 3-Wire Positive Trigger Type System. This Happens Because Both
Systems Show (+)Positive Lock & Unlock Pulses, The Difference Is That In A Reversing Polarity System The LOCK
& UNLOCK Wires REST AT (-)GROUND. Because Of Things Like The Just Mentioned This Type Of System Can Be
Intimidating. But If The Directions Are Followed Very Carefully Then It Will Not Be So Bad. Here You Will Be Cutting
Wires And Routing Them Through External Relays. Carefully Observe That You Do NOT Accidentally Reverse Any
Of The Connections And Most Importantly USE FUSES!!!!!
• In This Type Of Locking System There Are NO Factory Relays. The Actual Lock/Unlock Switch Directly Operates The
Motors. The Switches Do This By Reversing The Polarity Of The Motor Wires.
**This System Rests At (-)Negative Ground, So If (+)12 Volts Positive Is Pulsed Into The Lock Or Unlock Wire There
Will Be A Short-Circuit. This Is Why Relays Are Necessary To Mimic The Actions Of The Actual Lock/Unlock Switch.
Both The Lock And The Unlock Wires Will Be Cut (ONE WIRE AT A TIME) And Run Through Relays Which Will
Momentarily Interrupt The Circuit Allowing A (+)Positive Pulse To Safely Operate The System. ONLY 1 Relay for The
Lock Wire And 1 Relay For The Unlock Wire Will Be Necessary.
** As Mentioned Before, The Positioning Of The Relay Terminal Connections Is Of SUPREME IMPORTANCE. If The
Terminal Connections Are Reversed By Accident, SEVERE DAMAGE Can Occur To Both The Vehicle And The Unit.
• If You Were To Look at The Lock/Unlock Switch Inside The Driver’s Door There Would Be 5 Wires Coming Out Of
The Switch. There Will Be A Constant (+)12 Volt Positive Wire, 2 Wires Showing Constant (-)Negative Ground, And
2 Wires Which REST AT (-)NEGATIVE GROUND But Invert Polarity (Show A Positive Pulse) When The Lock/Unlock
Switch Is Pressed.
FOR EXAMPLE: When The LOCK Button Is Being Pressed One Wire Will Show (+)12 Volts Positive (This Is The
Lock Wire) While The Second Wire Is STILL RESTING AT (-)NEGATIVE GROUND.
When The UNLOCK Button Is Being Pressed The Polarity Of The 2 Wires Will Reverse. The Wire That Was Still
Resting At (-)Negative Ground Will Now Show (+)12 Volts Positive (This Is The UNLOCK Wire) And The Other Wire
Will Now Be RESTING AT (-)NEGATIVE GROUND.
** IT IS NOT NECESSARY TO ACTUALLY CATCH THE WIRES INSIDE THE DOOR. THEY CAN USUALLY BE FOUND IN
THE KICK PANELS.
• It Is Of Upmost Importance To Figure Out Which Of The 2 Reversing Wires Is The Lock Wire And Which Is The
Unlock Wire.
a) The Lock Wire Will Be The One That Shows (+)12 Volt Positive While The Vehicle’s LOCK Button Is Being Pressed.
b) The Unlock Wire Will Be The One That Shows (+)12 Volt Positive While The Vehicle’s UNLOCK Button Is Being
Pressed.