Pinpoint Tests

Universal Transmitter

Pinpoint Tests

Pinpoint Test A: The Universal Transmitter is Inoperative

Refer to Wiring Diagram Set 89 (Escape/Mariner, Escape Hybrid/Mariner Hybrid), Interior Lamps for schematic and connector information. Diagrams By Number

Normal Operation

The universal transmitter receives voltage through the battery saver relay power output circuit. The power and ground circuits are shared with the LH vanity mirror lamp.

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:

- Interior lighting concerns
- Universal transmitter
- Receiver unit


PINPOINT TEST A: THE UNIVERSAL TRANSMITTER IS INOPERATIVE

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A1 CHECK THE LH SUN VISOR VANITY MIRROR OPERATION

- Check the illumination of the LH sun visor vanity mirror lamps.
- Do the vanity mirror lamps illuminate?

Yes
GO to A2.

No
REFER to Interior Lighting Testing and Inspection to continue diagnosis of the vanity mirror lamps.

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A2 PROGRAM A HAND-HELD TRANSMITTER INTO THE UNIVERSAL TRANSMITTER

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

Yes
The universal transmitter is OK. VERIFY the receiver unit operates correctly by attempting to operate the device.

No
INSTALL a new LH sun visor assembly. REFER to Headliner in Interior Trim and Ornamentation Service and Repair. TEST the system for normal operation.

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