Quest Minivan GXE V6-2960cc 3.0L SOHC MFI (VG30E) (1997)
Trailer Lamps: Description and Operation
Trailer Stop, Turn Signal and Hazard Lamp Operation
The trailer stop, turn signal and hazard lamps are all controlled by the trailer tow control unit. The trailer tow control unit regulates the amount of voltage
supplied to the trailer lamps. If either turn signal or the hazard lamps are turned on and the control unit gets a brake lamp input, the control unit supplies
more voltage to the trailer lamps to make them illuminate brighter.
Power is supplied to trailer tow control unit terminals (3) and (4) through 15 A fuse (No. (22), located in the fuse block) at all times.
Stop lamp input is supplied to trailer tow control unit terminal (1).
Left turn signal and hazard lamp input is supplied to trailer tow control unit terminal (7).
flight turn signal and hazard lamp input is supplied to trailer tow control unit terminal (8).
The trailer left stop, turn signal and hazard lamps are controlled by trailer tow control unit terminal (6), which supplies power to trailer harness connector
terminal (3).
The trailer right stop, turn signal and hazard lamps are controlled by trailer tow control unit terminal (5), which supplies power to trailer harness
connector terminal (4).
Ground is supplied to trailer tow control unit terminal (2), and trailer harness connector terminal (1) through body grounds (B8) and (B10).