Answer
Feb 11, 2025 - 07:38 AM
The Excalibur RS271 is a universal remote start system that can work with the 2004 Dodge Ram 1500 (4.7L, Alternator). However, like many modern vehicles, the Ram has a factory immobilizer system, which means you'll need additional parts for proper installation.
✅ What You’ll Need for the Installation:
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Remote Start System:
- Excalibur RS271 (universal compatibility)
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Transponder Bypass Module:
- Recommended: Omega OL-MDB-ALL or OL-BLADE-AL64 (flashable CANBUS bypass module)
- This allows the remote starter to bypass the factory immobilizer without leaving a key in the ignition.
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Firmware Flashing Tool (if using a flashable bypass module):
- Omega FlashLink Updater – for programming the bypass module with the correct firmware for the 2004 Ram.
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T-Harness (Optional but Helpful):
- While not required, a T-harness designed for Dodge/Chrysler vehicles can simplify installation and reduce wire cutting.
- Omega TH-CH4 (or equivalent) is compatible with many Chrysler/Dodge vehicles from this era.
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Relays/Resistors (if needed):
- You may need a relay for controlling additional features like door locks or parking lights.
- A resistor (560-ohm) may be required if you're integrating with the door lock circuits (depending on how you wire it).
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Basic Installation Supplies:
- Multimeter (for verifying connections)
- Soldering iron or high-quality crimp connectors
- Electrical tape or heat shrink tubing
- Zip ties for securing wiring
🚗 Important Wiring Considerations:
- Ignition, Starter, and Accessory Wires:
The RS271 needs to connect to the ignition harness under the steering column. - Tachometer Signal:
For proper engine monitoring, connect to the tach wire or use the tachless mode (if supported). - Door Lock/Unlock Integration:
Can be controlled via the RS271 or through the bypass module’s data interface. - Parking Light Output:
Optional but recommended for visual confirmation of remote start activity.
⚡ Wiring Diagram Notes for 2004 Dodge Ram 1500 (4.7L):
- Ignition 1: Pink/Black
- Ignition 2: Pink
- Starter: Yellow
- Accessory: Orange
- Tach Signal: At the PCM, Pin #26 (Gray/Black wire)
- Brake Wire: White/Tan at brake pedal switch
- Parking Lights: White/Green (positive trigger)
🔧 Pro Tips:
- Always test wires with a multimeter—colors can vary depending on trim and build date.
- Secure grounds properly to avoid intermittent issues.
- Program the bypass module before installation to save time.
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