SKU: RY-RELAY-OBD1
Rywire OBD1/OBD2 1992+ Main Relay Kill Switch Harness
The Rywire RY-RELAY-OBD1 Main Relay Kill Switch Harness is the best anti-theft and security upgrade for 1992+ OBD1/OBD2 Honda/Acura vehicles (and compatible 92+ platforms). This plug-and-play harness allows you to install a hidden kill switch that disables the main fuel pump relay, preventing the engine from starting without the proper key sequence – ideal for track cars, street builds, or anyone wanting simple, effective theft protection without complex alarms or ECU tuning.
Key Features
- Plug-and-Play Design: Direct fit for OBD1/OBD2 main relay connectors – no cutting or splicing factory wiring
- Hidden Kill Switch: Disables fuel pump relay circuit – engine cranks but won’t start until switch is activated
- Universal Compatibility: Works on most 1992+ Honda/Acura models with OBD1 or OBD2 main relay (Civic, Integra, Accord, Prelude, etc.)
- High-Quality Wiring: Rywire premium harness with weatherproof connectors and durable construction
- Simple Installation: Mount hidden toggle switch in a discreet location – no ECU or fuel system modifications
- Made in USA: Handcrafted by Rywire for reliability and clean fitment
Specifications
| Specification | Detail |
|---|---|
| Part Number | RY-RELAY-OBD1 |
| Compatibility | 1992+ OBD1/OBD2 Honda/Acura Vehicles (Main Relay Style) |
| Switch Type | Hidden Toggle (User-Supplied or Optional) |
| Wiring | Premium Rywire Harness with Weatherproof Connectors |
| Installation | Plug-and-Play (No Cutting/Splicing) |
| Country of Origin | United States |
| Warranty | Limited (Manufacturer) |
Product Notes
- Designed for vehicles using OBD1/OBD2 main relay fuel pump control – disables fuel delivery when switch is off
- Toggle switch not included – use any hidden 2-position switch (momentary or on/off) mounted discreetly
- Perfect for track cars, stored vehicles, or theft deterrence without complex alarms
Installation Notes
- Estimated time: 30-60 minutes, easy to moderate difficulty, basic hand tools required
- Locate main relay (under dash or in engine bay), unplug factory connector, plug in Rywire harness, route switch wire to hidden location
- Professional installation optional – test for proper operation and secure all wiring
This Part Fits
| Year | Make | Model | Notes |
|---|---|---|---|
| 1992+ | Honda / Acura | Various Models | OBD1/OBD2 with Main Relay Fuel Pump Control |
| Common | Honda | Civic, Integra, Accord, Prelude, Del Sol | 92-00+ Platforms |
Why Choose Rywire Main Relay Kill Switch Harness?
- Simple, effective theft deterrent – disables fuel pump without complex wiring or ECU changes
- Plug-and-play harness maintains clean factory look and easy install
- Premium Rywire quality – handcrafted in USA for reliability and durability
Frequently Asked Questions
- Q: Will this work on my 1998 Honda Civic?
A: Yes – compatible with 1992+ OBD1/OBD2 Honda/Acura models using main relay for fuel pump control. - Q: Does it include the kill switch?
A: Harness only – you supply and install a hidden toggle switch (any 2-position switch works). - Q: Is it reversible?
A: Yes – plug-and-play design allows easy removal and return to stock at any time. - Q: Will it cause starting issues?
A: No – when switch is on/activated, vehicle starts normally; off position disables fuel pump for security.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure protective packaging
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