Car Security and Convenience / Power Door Locks, Special Wire Systems

Special Wire Systems: • Double Pulse Unlock • Single Pulse to Lock and Unlock • Nissan Maxima 1995 - 1997 Door Locks • Toyota with Child Safety Door Lock System Door Locks: • Determining Switch Types • Multiple Wire Systems • Single Wire Systems • Special Systems • Add Auto Lock/Unlock

Car Security: • Basic Connections (inputs) • Basic Connections (outputs) • Car Alarm Modules • Car Alarm Sensors / Triggers • Light Flash / Illuminated Entry • Starter Interrupts • Accessories & Add-ons • the12volt's Application Guide • the12volt's Install Bay Relays: • Converting Polarity • Starter Interrupts • Door Locks • Illuminated Entry & Light Flash • Special Applications

Single Pulse to Lock and Unlock Using a mechanical latching relay like the PCB lacthing relay pictured below on the left and an SPDT relay, you can use a single negative output to alternately lock and unlock the doors. The mechanical latching relay only requires it's coil to be momentarily energized to change and maintain the opening or closing of it's contacts. The SPDT relay will provide a dedicated negative output for lock when the coil is energized and a dedicated output for unlock when it is not energized.

Nissan Maxima 1995 - 1997 Door Locks, Double Ground Pulse Relay Diagram If this vehicle has a factory security system, a double ground pulse to the Green/Yellow (factory disarm wire) wire will unlock all doors. Brown wire will only unlock driver's door (alternating 12 V+). Pulse(-) to Lt. Green/Red will lock all doors.

Toyota with Child Safety Door Lock System Locate the child safety wire in the same harness as the lock and unlock wires. This wire will be different colors (see below) in different models and will show ground until the lock from the switch is activated. This is a three wire system with an additional wire that must see ground during unlock for all of the doors to unlock. An additional relay may not be required. This will depend on the outputs of your unit. If not needed, connect the unlock output to the wires shown on terminal #30.   Child Safety Colors   4 Runner Camry / MR2 Celica Corolla Land Cruiser Tacoma Tundra = = = = = = = Red/Blue Blue/Red Green Blue/Red Blue/Orange Blue/Black Red/Yellow Also see Requested Diagrams and Vehicle Information Database for child safety colors and other information not listed here.

Special Wire Systems: • Double Pulse Unlock • Single Pulse to Lock and Unlock • Nissan Maxima 1995 - 1997 Door Locks • Toyota with Child Safety Door Lock System Door Locks: • Determining Switch Types • Multiple Wire Systems • Single Wire Systems • Special Systems • Add Auto Lock/Unlock

Car Security: • Basic Connections (inputs) • Basic Connections (outputs) • Car Alarm Modules • Car Alarm Sensors / Triggers • Light Flash / Illuminated Entry • Starter Interrupts • Accessories & Add-ons • the12volt's Application Guide • the12volt's Install Bay Relays: • Converting Polarity • Starter Interrupts • Door Locks • Illuminated Entry & Light Flash • Special Applications