Code Alarm CA 1550 Installation Manual page 10

Positive Switching Locks
All Door Lock and Unlock: Locate the lock / unlock wire at the vehicle's lock /
unlock switch.
Verification: These wires will register positive voltage when the Lock and
Unlock switches are activated.
Connect the GREEN and BLUE wires shown in the diagram below.
Lock
Unlock
Reverse Polarity Locks (5-Wire Door locks)
All Door Lock and Unlock: Locate the lock / unlock wire at the vehicle's lock /
unlock switch.
Verification: These wires will rest at ground and register positive
voltage when the Lock and Unlock switches are activated.
Connect the GREEN and BLUE or BLUE/GREEN wires shown in the diagram
below using (2) SPDT relays (not supplied).
10
Positive Locks:
Vehicle Door Lock
Control Relays
Reverse Polarity Locks:
86
Lock
Unlock
87
87a
86
30
87
87a
86
30
Fused +12 Volt
Battery Souce
87
87a
GREEN (-) Lock Output
85
30
X
Cut
Fused +12 Volt
Battery Souce
87
87a
BLUE (-) Unlock Output
86 85
30
X
Cut
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Fused +12 Volt
Battery Souce
GREEN (-) Lock Output
85
Fused +12 Volt
Battery Souce
BLUE (-) Unlock Output
85
To Door Lock Motor
To Door Lock Motor