RAM 2500 Truck 2WD V8-5.9L VIN Z (1997)
Power Mirror Switch: Description and Operation
SYSTEM OPERATION
Both the right and left power outside mirrors are controlled by a single multi-function switch unit. The switch knob is rotated clockwise (right
mirror control) or counterclockwise (left mirror control) to select the mirror to be adjusted. The switch knob is then moved in a joystick fashion to
control movement of the selected mirror up, down, right, or left.
The power mirror switch cannot be repaired and, if faulty or damaged, it must be replaced as a complete unit.
CIRCUIT OPERATION
The power mirror switch has a right and a left position. Moving the switch to either of these positions changes the voltage path internal to the
switch (changes polarity at the motors).
When the switch is moved to the LEFT position and mirror movement UP is selected, voltage is supplied through the P75 circuit and the ground
path is through circuit P73. When the DOWN movement is selected, the power and ground are reversed.
If a LEFT door mirror movement LEFT is selected, voltage is supplied through the P71 circuit and the ground is passed through circuit P73. When
the left door mirror RIGHT movement is selected, the power and ground are reversed.
When the switch is moved to the RIGHT position and mirror movement UP is selected, voltage is supplied through the P72 circuit and the ground
path is through circuit P70. When the DOWN movement is selected, the power and ground are reversed.
If a RIGHT door mirror movement LEFT is selected, voltage is supplied through the P74 circuit and the ground is passed through circuit P70.
When the left door mirror RIGHT movement is selected, the power and ground are reversed.
