Wireless BLE Relay Installation Guide

Written By Shubham Mishra

Wireless BLE Relay Installation Guide - Complete Technical Summary

Product Overview

Device: Wireless BLE Relay Module for remote control of fuel pumps or starter circuits Purpose: Enables remote immobilization or reactivation of vehicle systems using BLE communication between asset tracker and relay Brand: GoZen Help Desk Support URL: https://support.zenduit.com/portal/en/kb/articles/wireless-ble-relay-installation-guide-7-5-2025

Components Required

  • Wireless BLE Relay Module

  • BLE-compatible Asset Tracker

  • 7V–32V DC power supply (vehicle battery or auxiliary source)

  • Standard wiring tools (cutter, stripper, crimper)

Power and Ground Wiring Instructions

Basic Power Connections

Red Wire → Connect to +7V–32V DC Power Source Black Wire → Connect to Vehicle Ground These connections power the BLE relay module.

Circuit Control Configuration

Control Wire Setup Process

Cut the control wire leading to the fuel pump or starter. Connect the two ends of this wire as follows: Blue Wire (Common) → Connect to one side of the cut wire Orange or Gray Wire → Connect to the other side

Configuration Options

Orange Wire – Normally Closed (Recommended Configuration)

  • The circuit is closed by default (fuel pump/starter remains active)

  • When the relay is triggered, the circuit opens, cutting off the pump/starter

  • Best for immobilization by default with manual or remote trigger control

  • Recommended setup for standard immobilization control

Gray Wire – Normally Open

  • The circuit is open by default (fuel pump/starter is disabled)

  • When the relay is triggered, the circuit closes, activating the pump/starter

  • Use this when you want manual enabling on demand

Step-by-Step Installation Process

Step 1: Mount the Relay

  • Secure the relay in a dry, concealed area near the engine fuse box or dashboard

  • Ensure BLE range coverage between the asset tracker and the relay location

Step 2: Connect Power Wires

  • Connect the red wire to the ignition-switched or constant power source (7–32V)

  • Connect the black wire to a solid ground on the vehicle chassis

Step 3: Cut & Wire the Fuel Pump or Starter

  • Locate and cut the control wire of the fuel pump or starter

  • Connect one cut end to blue wire (Common)

  • Connect the other cut end to orange or gray, based on the required control logic

Step 4: Pair the Asset Tracker

  • Ensure the asset tracker is BLE-compatible and configured to communicate with the relay

  • Use the asset management platform or mobile app to pair and test the relay's control signals

Step 5: Test Functionality

  • Simulate relay triggers using the tracker interface

  • Ensure the fuel pump/starter activates or cuts off as expected

  • Secure all wiring and cover exposed areas with insulation

Relay Behavior Summary

Orange Wire Behavior

State When Idle: Closed (connected) State When Triggered: Open (disconnected) Typical Use: Default circuit ON, trigger to cut off

Gray Wire Behavior

State When Idle: Open (disconnected) State When Triggered: Closed (connected) Typical Use: Default circuit OFF, trigger to activate

Visual Wiring Diagram Details

The wiring diagram shows:

  • NO (Normally Open) connection

  • 7V-32V DC Power input (red wire)

  • Ground connection (black wire)

  • Common connection (blue wire)

  • CN (Common/Normally Closed) connection (orange wire)

  • CUT FUEL PUMP circuit integration points

Troubleshooting Guide

Relay Not Powering Up

Possible Cause: Loose red/black wires Solution: Check voltage and ground continuity

No BLE Connection

Possible Cause: Asset tracker not paired or out of range Solution: Verify BLE settings and proximity

Fuel Pump Always ON/OFF

Possible Cause: Incorrect relay wire used Solution: Recheck gray/orange wire configuration

Technical Specifications

  • Power Requirements: 7V–32V DC

  • Communication Protocol: BLE (Bluetooth Low Energy)

  • Control Method: Relay switching via BLE commands from asset tracker

  • Installation Location: Engine compartment or dashboard area

  • Wire Color Coding: Red (power), Black (ground), Blue (common), Orange (normally closed), Gray (normally open)

This summary captures all technical specifications, wiring instructions, installation procedures, configuration options, behavioral characteristics, and troubleshooting information contained in the original Wireless BLE Relay installation guide document.