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Principles Of Operation




Reversing Lamps

Principles of Operation

Automatic Transmission

The reversing lamps are provided voltage from the reversing lamps relay. Voltage is supplied to the reversing lamps relay when the ignition is in RUN. The Transmission Control Module (TCM) monitors the transmission gear status. When the TCM (Transmission Control Module) detects the transmission is in REVERSE (R), the TCM (Transmission Control Module) provides a ground for the reversing lamps relay coil. When the relay is energized, voltage is supplied to the reversing lamps.

Manual Transmission

Voltage is supplied to the reversing lamp switch when the ignition is in RUN. When the transmission is in REVERSE (R), the reversing lamp switch routes voltage to the reversing lamps.
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