Installation guide
18 
Negative 
Multiplexed 
Locks 
All  Door Lock and  Unlock: Locate the lock 
I 
unlock wire at the vehicle's lock 
I 
unlock switch. 
Verification: 
This wire 
will 
show variable ground when the switch is activated. 
Please consult the wire and  location chart for specific resistor values for 
your vehicle. 
Connect the GREEN and  BLUE or BLUE/GREEN wires shown 
in 
the diagram 
below using (2) 
SPOT 
relays (not supplied). 
Multiplex Locks: 
Positive 
Multiplexed 
Locks 
All  Door Lock and Unlock: Locate the lock 
I 
unlock wire at the vehicle's lock 
I 
unlock switch. 
Verification: 
This wire 
will 
show variable positive voltage when the switch is 
activated.  Please consult the wire and  location chart for specific resistor 
values for your vehicle. 
Connect the GREEN and BLUE or BLUE/GREEN wires shown 
in 
the diagram 
below using 
(2) 
SPOT 
relays (not supplied). 
Multiplex Locks: 
87 
Vehicle 
Door 
lock 
Control Relays 
ca6553/6553sst 
rev 
A 










