
INSTRUCTION MANUAL
SAFETY LOCK D
AUTOMATIC IGNITION LOCK
File: 091-174.pmd
Date: 10-31-2007
MODEL #091-174
INPUT: 12 Volts
3 YEAR WARRANTY
KUSSMAUL ELECTRONICS CO., INC.
170 CHERRY AVE., WEST SAYVILLE, N.Y. 11796
TEL: in NY 631-567-0314 TOLL FREE: 800-346-0857 FAX: 631-567-5826

INTRODUCTION
The Safety Lock D is an automatic ignition switch bypass that permits running the vehicle’s
engine with the ignition switch key removed. Momentarily depressing the switch, bypasses the
ignition switch and permits turning the key “OFF” and removing it. The engine will continue to
run. An unauthorized operator trying to move the vehicle will step on the brake in order to shift
the transmission. The brake light signal resets the Safety Lock D and the engine stops. It
cannot be restarted without the ignition switch key.
The Safety Lock D contains resistors that are switched so as to be in series with the Key Switch
to BCM module. This bypasses the theft prevention circuitry built into the vehicle.
INSTALLATION
1. The Safety Lock D is supplied with a lighted push button switch and a 3 foot wire
harness. Drill a 5/8 diameter hole in a suitable location and mount the switch.
2. Mount the Safety Lock D in a protected area close to the vehicle wiring harness.
3. Locate the Purple/Brown wire in the ignition harness and cut at a convenient location.
Splice extension wires if required and connect the two Purple/Brown wires to terminals
5 and 6 of J1.
4. Connect the other wires of J1 as indicated in the wiring diagram

INSTALLATION WIRING DIAGRAM
1 2 3
J1
WIRE 1
J2
(+12V)
(BYPASS OUTPUT)
+12V from brake light
CUT THIS WIRE
BCM
WIRE 2
WIRE 3
WIRE 4
WIRE 5
WIRE 6
Bypass
Set
Vehicle Year
Jeep
Wrangler
2007
Dodge
Charger
2007
Dodge
Ram 2500
Dodge
Charger
2007
2008
Wire Number
123 4 5 6
Connect to
Ground
Connect to
Ground
Connect to
Ground
Brown / Tan
Ign. Harness
Lt. Blue / Red
Ign. Harness
Lt. Blue / Red
Ign. Harness
Fused Bat
Lt. Blue / Red
Ign. Harness
Pink / White
Ign. Harness
Pink / White
Ign. Harness
Pink / White
Ign. Harness
Pink / White
Ign. Harness
Brake Switch
Dark Green / White
Brake Switch
Brake Switch
Dark Green / White
Brake Switch
Purple / Brown
Ign. Harness
Purple / Brown
Ign. Harness
Purple / Brown
Ign. Harness
Not Used Not Used
Purple / Brown
Ign. Harness
Purple / Brown
Ign. Harness
Purple / Brown
Ign. Harness

INSTALLATION RECORD & WARRANTY
Date Installed
Installed By
Vehicle Identification
Vehicle Owner
WARRANTY
All product of Kussmaul Electronics Company Inc. are warranted to be free
of defects of material or workmanship. Liability is limited to repairing or
replacing at our factory, without charge, any material or defects which
become apparent in normal use within 3 years from the date the equipment
was shipped.
Kussmaul Electronics Company, Inc. shall have no liability for damages of
any kind to associated equipment arising from the installation and /or use of
the Kussmaul Electronics Company, Inc. products. The purchaser, by the
acceptance of the equipment, assumes all liability for any damages which
may result from its installation, use or misuse, by the purchaser, his or its
employees others.