Integrating a remote start system into your 2004 Chevrolet Suburban can enhance convenience, especially in extreme weather conditions. For systems like the CrimeStopper RS00-G5 paired with an ADS DLSL GM1 bypass module, understanding the wiring, particularly concerning the OBD2 port, is crucial. This guide will clarify the necessary connections and address potential issues during installation, focusing on a Data-to-Data (D2D) setup for your 04 Suburban.
D2D Wiring for ADS DLSL GM1 and CrimeStopper G5 in Your ’04 Suburban
When opting for a D2D connection between your ADS bypass module and the CrimeStopper G5 remote start system in your 2004 Suburban, the wiring process simplifies compared to a Wire-to-Wire (W2W) setup. However, certain connections are vital for proper functionality.
Key Connections Overview
For a D2D installation, you primarily need to focus on a few key wires. While a D2D harness streamlines much of the connection, a crucial direct wire connection is required for the ignition input. This involves linking the G5 system to your Suburban’s ignition system.
OBD2 Data Wire Connection
A significant connection point is the OBD2 port of your 2004 Suburban. Specifically, the Violet/White OBD2 J1850 data wire from the ADS bypass module needs to be connected to the Violet wire at Pin 2 of your Suburban’s OBD2 plug. This connection facilitates data communication between the bypass module and the vehicle’s system, essential for remote start operation and key bypass functions.
Ignition and Additional Power Wires
Beyond the OBD2 data wire, ensure the thick wires from the G5’s 6-pin connector are correctly connected. The Pink wire from the G5 should be connected to the Suburban’s Pink IGN1 wire, and the Pink/White wire (default IGN2 on the G5) must be connected to the Suburban’s White IGN2 wire. Be aware that this configuration might leave the Suburban’s ACC2 (Brown wire) unpowered during a remote start.
For the G5’s 12-Pin plug in D2D mode, the following connections are typically needed:
- Yellow: Connect to the Horn wire.
- White: Set to (-) output (via RED/Black wire) and connect to the (-) Parking Light wire.
- Black & RED/Black: Both to Chassis Ground.
- Gray: To the supplied hood pin switch.
- Purple: To the Brake wire.
Wires like Orange, ORANGE/Black, Pink, Brown, RED/White, and Yellow/Black on the G5 harness are generally not used in this specific D2D setup for a 2004 Suburban.
Resolving Lock Signal Issues for Remote Start
A common challenge with add-on remote start systems, like the CrimeStopper G5 in a 2004 Suburban, is the lock signal requirement. The G5 system often looks for three negative (-) lock signals in quick succession to initiate a remote start. However, the 2004 Suburban’s factory system does not readily provide this type of signal.
The Negative Lock Signal Problem
The issue arises because the Suburban’s lock motor signal is typically positive (+), not negative (-), and the system doesn’t inherently provide the multiple pulse negative signal the G5 expects for remote starting. This discrepancy can prevent the remote start from functioning correctly.
Implementing a Relay Solution
To overcome this, a +12V mini-relay is necessary to convert the Suburban’s positive (+) lock motor signal into the negative (-) signal required by the CrimeStopper G5. A standard automotive Bosch-style 30/40 Amp SPDT relay can also be used.
Relay Wiring Instructions for Lock Signal Conversion
To wire the relay for lock signal conversion:
- Relay Pin 85 & 87: Connect both to Chassis Ground.
- Relay Pin 86: Connect to the Lock Motor gray wire located at the driver’s window switch, specifically in the black 26-pin plug, pin 21.
- Relay Pin 30: Connect to the G5 Red 3-Pin plug, Green wire.
For added protection, it’s recommended to include a 1N4004 or 1N4007 diode. Connect this diode between relay Pins 85 and 86, ensuring the diode’s band is oriented towards pin 86. This diode helps protect the circuit.
By implementing this relay setup, you effectively change the Suburban’s (+) Lock Motor signal to the (-) signal that the G5 remote start system needs, resolving the lock signal issue and enabling proper remote start functionality.
Conclusion
Successfully installing a remote start system in your 2004 Chevy Suburban, especially with a D2D setup and addressing potential lock signal issues using a relay, requires careful wiring and understanding of your vehicle’s electrical system and the aftermarket components. By correctly connecting the OBD2 data wire, ignition wires, and implementing the relay for lock signal conversion, you can ensure a functional and convenient remote start system in your 04 Suburban. Always double-check your connections and consult wiring diagrams specific to your vehicle and remote start system for a smooth and successful installation.
