Code Alarm CA- 550 Installation Manual page 15

2. 22 PIN BASE HARNESS CONTINUED
Parking Brake Input (GRAY/BLACK)
NOTE: The following connection is only required for Turbo Timer.
Verification: This wire will register ground when the vehicle is in PARK or NEUTRAL or if the PARKING
BRAKE is engaged
This wire must see ground for the vehicle for Turbo Timer option to activate
External Start Trigger (WHT/BLUE)
NOTE: The following connection is only required on a REMOTE START installation
This wire will activate the Remote Start when a GROUND pulse is applied to it from an external device
Diesel Wait-To-Start Input (20 AWG) (BLACK/GRAY)
Locate the Diesel Wait-To-Start light wire at the instrument panel.
Verification: This wire registers positive or negative voltage when the wait-to-start light illuminates.
For negative switching circuits follow diagram 1 below. An SPDT relay is required (model HDRLY).
At Instrument Panel
Ignition
For Positive switching circuits follow diagram 2 below. Use Code Alarm part HDRLY (an SPDT relay, not
included).
Wait-To-Start Bulb
At Instrument Panel
Ground
Wait-To-Start Bulb
Chassis Ground
86
BLACK/GRAY Wait-To-Start
Wire
1N4004 Diode
Vehicle Control Module
87
87a
85
BLACK/GRAY Wait-To-Start
30
Wire
Vehicle Control Module