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Relay Diagrams: Convert a Negative Output to a Positive Output

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Convert a Negative Output to a Positive Output
If you have a switch or an alarm or keyless entry that has a negative output that you wish to use to switch a device that requires 12V+ such as a horn, dome light, parking lights, head lights, hatch release, etc., wire a relay as shown below to convert the negative output (trigger) to a positive output.

Convert a Negative Output to a Positive Output
Relay Diagrams - Quick Reference (Last Updated: 1/7/2017)
Connecting Additional Devices to the Remote Turn On Wire
Constant to Momentary Output - Negative Input/Negative Output
Constant to Momentary Output - Negative Input/Positive Output
Constant to Momentary Output - Positive Input/Negative Output
Constant to Momentary Output - Positive Input/Positive Output
Convert a Negative Output to a Positive Output
Convert a Positive Output to a Negative Output
Door Locks - 3 Wire Positive
Door Locks - 4 Wire Reversal
Door Locks - 5 Wire Alternating 12 Volts Positive
Door Locks - Actuators / Reverse Polarity - Negative Switch/Trigger (a)
Door Locks - Actuators / Reverse Polarity - Negative Switch/Trigger (b)
Door Locks - Actuators / Reverse Polarity - Positive Switch/Trigger
Door Locks - Add Auto Lock without an Alarm or Keyless Entry System
Door Locks - Add Auto Unlock without an Alarm or Keyless Entry System
Door Locks - Dodge Caravan (1996 - 2000)
Door Locks - Dodge Caravan (2001 - 2005)
Door Locks - Ford Probe
Door Locks - Nissan Maxima 1995 - 1997, Double Ground Pulse Relay Diagram
Door Locks - Nissan's Single Wire '91-'95 using 1 relay and 1 diode (Type F door lock)
Door Locks - Nissan's Single Wire '91-'95 using 2 relays (Type F door lock)
Door Locks - Single Pulse to Lock and Unlock - Negative Pulse
Door Locks - Single Pulse to Lock and Unlock - Positive Pulse
Door Locks - Toyota with Child Safety Door Lock System
Door Locks - Vacuum Type
GM Vehicle Anti-Theft System - Passkey
GM Vehicle Anti-Theft System - Passkey II
Headlights and Parking Lights on with Wipers - Negative Input/Positive Output
Headlights and Parking Lights on with Wipers - Positive Input/Positive Output
Illuminated Entry for Vehicles with Negative Door Triggers
Illuminated Entry for Vehicles with Positive Door Triggers
Latched On/Off Output Using a Single Momentary Negative Pulse - Positive Output
Latched On/Off Output Using a Single Momentary Negative Pulse - Positive Output - No Diodes
Latched On/Off Output Using a Single Momentary Positive Pulse - Negative Output
Latched On/Off Output Using Two Momentary Negative Pulses - 2 Negative Outputs - Create Ground While Armed
Latched On/Off Output Using Two Momentary Negative Pulses - Negative Output (3 relays)
Latched On/Off Output Using Two Momentary Negative Pulses - Positive Output (3 relays)
Latched On/Off Output Using Two Momentary Positive Pulses - Negative Output (3 relays)
Latched On/Off Output Using Two Momentary Positive Pulses - Positive Output (2 relays, 1 diode)
Latched On/Off Output Using Two Momentary Positive Pulses - Positive Output (3 relays, no diode)
Latched On/Off Output Using Two Momentary Pulses, 1 positive, 1 negative - Positive Output (2 relays, 1 diode)
Latched Output - Momentary to Constant Output - Negative Input/Positive Output
Latched Output - Momentary to Constant Output - Positive Input/Positive Output
Light Flash - Basic - Negative Input/Positive Output
Light Flash - Two Wire (German Vehicles) - Negative Output from Alarm/Keyless Entry
Light Flash - Two Wire (German Vehicles) - Negative Output from Alarm/Keyless Entry (Dual Make SPST Relay)
Light Flash - Two Wire (German Vehicles) - Positive Output from Alarm/Keyless Entry
Light Flash - Two Wire (German Vehicles) - Positive Output from Alarm/Keyless Entry (Dual Make SPST Relay)
Light Flash - Two Wire (German Vehicles) - Weak Negative Output from Alarm/Keyless Entry
Light Flash - Using Siren Output
One Channel to Multiple Outputs
Pulsed to Steady Output (Turn signal output to steady output for duration of turn signal)
Radio On Until Door Opened (Retained Accessory Power) - Negative Door Trigger
Radio On Until Door Opened (Retained Accessory Power) - Positive Door Trigger
Remote Start Relay Diagram - Basic Only
Starter Kill - Normally Closed
Starter Kill - Normally Open
Starter Kill - Passive with Horn Output and Horn Interrupt
Starter Kill - Passive with Remote Turn On Lead
Starter Kill - Passive with Switch
Stereo to Bridged Mono Switched Outputs
Switching from Series to Parallel and Back
Switching from Stereo to Bridged Mono and Series to Parallel
Weak Negative Output to Strong Ground Output
Weak Positive Output to High Current Positive Output
Wigwag Flashing Lights - Negative Input/Positive Output
Wigwag Flashing Lights - Negative Input/Positive Output - Isolate Left and Right Lights
Wigwag Flashing Lights - Positive Input/Positive Output
Wigwag Flashing Lights - Positive Input/Positive Output - Isolate Left and Right Lights
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Relays and Relay Diagrams:
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