Explorer 4WD V6-4.0L (2009)
Garage Door Opener Transmitter: 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. See: Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
Vehicles with roof opening panel and auxiliary A/C will have the universal transmitter located as an integral part of the LH sun visor. For all other
vehicles, the universal transmitter is integral to the overhead console. 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 battery saver relay in the Smart Junction Box (SJB) to the universal
transmitter through circuit CLN01 (GN/VT) and the universal transmitter is grounded on circuit GD133 (BK).
This pinpoint test is intended to diagnose the following:
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Wiring, terminals or connectors
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Universal transmitter
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Receiver unit
PINPOINT TEST A: THE UNIVERSAL TRANSMITTER IS INOPERATIVE
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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A1 CHECK THE UNIVERSAL TRANSMITTER
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Press any of the buttons on the universal transmitter.
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Does the universal transmitter LED illuminate?
Yes
GO to A2.
No
GO to A3.
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A2 PROGRAM A HAND-HELD TRANSMITTER INTO THE UNIVERSAL TRANSMITTER
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Program the universal transmitter. Refer to Universal Transmitter Programming See: Programming and Relearning.
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Does the universal transmitter program successfully?
Yes
The universal transmitter is OK. VERIFY the receiver operates correctly.
No
INSTALL a new universal transmitter. For vehicles with roof opening panel and auxiliary A/C, REFER to Headliner in Headliner.
For all other vehicles, REFER to Overhead Console in Console. TEST the system for normal operation.
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A3 CHECK CIRCUIT CLN01 (GN/VT) FOR AN OPEN
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Ignition OFF.
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Disconnect: LH Vanity Mirror Lamp C907 (with roof opening panel and auxiliary A/C) or Universal Transmitter C928 (all other vehicles).
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Ignition ON.
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Measure the voltage between the universal transmitter C907-1 (with roof opening panel and auxiliary A/C) or C928-2 (all other vehicles), circuit
CLN01 (GN/VT), harness side and ground.
