Caravan FWD V6-3.8L VIN L (1999)
Garage Door Opener Transmitter: Testing and Inspection
Before proceeding in diagnosis, check the transmitter for battery voltage and a good ground at the transmitter harness connector.
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The unit may not have been trained correctly, try retraining the transmitter.
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The batteries in the hand-held transmitter may be dead.
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Rotate your hand-held transmitter end-over-end and train again.
For best results, place the end opposite from the battery compartment against the universal transmitter while training.
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The frequency of the hand-held transmitter may not be in the desired frequencies between 286MHz and 399MHz set by FCC.
