This document describes the installation position and precautions of a car-mounted device. The device is suitable for installation on the inside of the front windshield of the vehicle, with the installation position height within 2.0m and must be installed in a position without metal obstructions within a range of 80° upwards based on the horizontal direction. At the same time, it is necessary to ensure that the inclination angle of the front windshield where the device is installed is not more than 45°. For vehicles with an inclination angle of more than 45°, an additional installation bracket is required. The device can receive signals from toll booth antennas and complies with the safety standards for road transport vehicles.
About this manual
The document explains the required safety precautions before installing the Mitsubishi EP‑500 ETC device, including turning off the ignition, disconnecting the battery negative terminal, and avoiding installation on metalized windshields or near airbags. It also outlines the need for professional installation and the setup registration process.
Detailed installation steps cover mounting the unit on the front windshield or dashboard, using the supplied brackets and double‑sided tape, routing power cables, connecting the ACC and ground lines, and verifying LED indicators and buzzer signals after wiring. The guide finishes with post‑installation checks, removal instructions, and notes on optional accessories. This manual is written in Japanese.
What's inside
- Safety Precautions
- Preparation Before Installation
- Mounting Position and Brackets
- Power Cable Connection
- LED Indicator and Buzzer Signals
- Setup Procedure
- Post‑Installation Verification
- Removal Instructions
- Optional Accessories
Specifications
| Power Supply Voltage | 12V/24V |
|---|
| LED Indicator Colors | Green when ETC card present, Amber when no card |
Frequently asked questions
What does the LED lamp indicate when the ignition key is turned?
The LED lamp lights amber (or amber‑green) if no ETC card is inserted, and green when an ETC card is present.
Can the ETC unit be installed on a vehicle with a metalized windshield?
No, a metalized (heat‑reflective) windshield blocks the antenna signal and prevents proper operation.
What must be done with the vehicle’s battery before installation?
Turn the ignition key to OFF and disconnect the battery’s negative terminal before any wiring work.
Is it allowed to install more than one ETC unit in a vehicle?
No, only one ETC unit should be installed per vehicle; installing multiple units will cause malfunction.