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Pinpoint Tests




Universal Transmitter

Pinpoint Tests

Pinpoint Test A: The Universal Transmitter is Inoperative

Refer to Wiring Diagram Set 89, Interior Lamps for schematic and connector information. Diagrams By Number

Normal Operation

The universal transmitter is integral to the LH sun visor assembly. The universal transmitter can be programmed to operate up to 3 garage doors, entry gates, security systems, and home or office lighting. Voltage is supplied from the Lighting Control Module (LCM) to the universal transmitter through the vanity mirror power circuit. The vanity mirror ground circuit provides the ground.

When a programmed button is pressed on the universal transmitter, a wireless signal is sent to the receiver unit. If the device does not operate the garage door, it may be due to an incorrect programming procedure being carried out. Refer to Universal Transmitter Programming Universal Transmitter Programming to verify the universal transmitter was correctly programmed. If necessary, contact the Lear Car2U(R) Customer Service Center at 866-572-2728, or the customer support website at www.learcar2u.com .

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Universal transmitter
- Receiver unit



PINPOINT TEST A: THE UNIVERSAL TRANSMITTER IS INOPERATIVE

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A1 CHECK THE UNIVERSAL TRANSMITTER ILLUMINATION


- Check the illumination of the transmitter and/or the LH vanity mirror lamp.
- Do the transmitter and LH vanity mirror lamp illuminate?

Yes
GO to A2.

No
REFER to Lighting and Horns to diagnose the LH vanity mirror lamp inoperative.

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A2 PROGRAM A HAND-HELD TRANSMITTER INTO A UNIVERSAL TRANSMITTER


- Program the universal transmitter. Refer to Universal Transmitter Programming Universal Transmitter Programming.
- Did the universal transmitter program successfully?

Yes
The universal transmitter is OK. VERIFY the receiver unit operates correctly.

No
INSTALL a new LH sun visor assembly. TEST the system for normal operation.

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