DESCRIPTION AND OPERATION

Universal Transmitter

Overview

The universal transmitter operates garage doors, gates and home or office lighting and security systems.

System Operation

Universal Home Transmitter

The universal transmitter learns a hand-held transmitter radio frequency code and stores the code in memory. It consists of 3 buttons, each with its own indicator lamp. Once the universal transmitter code is stored, the universal transmitter emits the radio frequency of the hand-held transmitter when the corresponding button is pressed. The universal transmitter can store 3 unique transmitter codes at a time. The universal transmitter and LH vanity mirror lamp share the same power and ground circuits. Both components are part of the LH sun visor.

DIAGNOSIS AND TESTING

Universal Transmitter

Special Tool(s)

Inspection and Verification

1. Verify the customer concern.

2. Visually inspect for obvious signs of mechanical or electrical damage.

Visual Inspection Chart

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

4. If the cause is not visually evident, verify the symptom. GO to Symptom Chart.

Symptom Chart

Pinpoint Tests

Pinpoint Test A: The Universal Transmitter is Inoperative

Normal Operation

The universal transmitter and LH vanity mirror lamp share the same circuits. Both components are part of the LH sun visor.

This pinpoint test is intended to diagnose the following:

• Interior lamps concern
• Universal transmitter (part of the LH sun visor)

PINPOINT TEST A: THE UNIVERSAL TRANSMITTER IS INOPERATIVE