MAN# 650023B
4
Ignition
Switch
Starter
Solenoid
Cut wire between starter solenoid and the
wire that feeds it from the ignition switch
BLACK
BLUE
86
87
85
30
GREEN
To Ignition Switch Starter Wire
do not connect
RED
WHITE
To SAFETY terminal on GSS-2000 Decoder
To Starter Solenoid
Ignition
Switch
Starter
Solenoid
To POWER terminal on GSS-2000 Decoder
(there will be two wires in one terminal at decoder)
Wiring SAFTEY relay
CONNECTING THE NEUTRAL SAFETY RELAY
If your vehicle already has a neutral safety switch in the wiring harness to prevent the
vehicle from starting while it is in gear, then you do not need to connect this neutral safety switch.
Otherwise, cut the wire that goes from your starter switch to the starter solenoid. Connect
one end of the wire to the GREEN wire from the relay and connect the other end to the BLACK
wire from the relay. For wiring harnesses which provide wires for the neutral safety, connect one
side to the GREEN wire and the other side to the BLACK wire. The wire you cut and connect to
the relay should p12V to the starter solenoid when the ignition switch is in the start
position, which engages the starter motor.
The WHITE wire from the relay connects to the SAFETY terminal on the decoder. The
RED wire connects to the power wire for the decoder.
*For the neutral safety switch to operate properly, the POWER terminal on the
decoder as well as the red wire on the relay must have power when the key is in both the
run and start positions.
Typical starter wiring Wiring after SAFTEY relay installed
CONNECTING PARK-NEUTRAL SIGNAL TO AN ECM
If your vehicle is fuel injected and the ECM requires a signal when the transmission is in
either park or neutral, the neutral safety terminal can be used. The SAFETY terminal provides a
ground when the transmission is in park or neutral. This can be connected to the ECM in order to
pass vehicle inspection.
The SAFETY terminal can be used for both a neutral safety and ECM signal at the same
time.
CONNECTING BACKUP LIGHTS TO THE GSS-2000
If your vehicle already has a backup light switch, then you do not need to connect anything
to the BACKUP terminal. If you do not have a backup switch and will be using backup lights on
your vehicle, then connect the “hot side” of the backup lights to the terminal marked BACKUP.
This circuit is designed to 12 V up to 15 amps when the transmission is in reverse.
