Dodge ram truck 3500 1996 Service Manual page 821

B R 8W - 62 POWER MIRRORS
8W - 62 - 1
8W-62 POWER MIRRORS
D E S C R I P T I O N A N D O P E R A T I O N
POWER MIRRORS
The power mirrors use a single switch located in
the left door trim panel. The feed for the system is
supplied on circuit M l from the 15 amp Ignition-Off
Draw (IOD) fuse located in the fuse block cavity 17.
This fuse also supplies power for the radio, interior
lamps and other components. Grounding for the
power mirrors is provided through the Z3 circuit.
SWITCH AND MIRROR OPERATION
The power mirror switch has a right and a left
position. Moving the switch to either of these posi­
tions 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 sup­
plied 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 sup­
plied through the P72 circuit and the ground path is
through' circuit P70. When the DOWN movement is
selected, the power and ground are reversed.
I f 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.
HELPFUL INFORMATION
• Check the IOD fuse located i n the fuse block
• Circuit M l supplies voltage to the radio, cargo
lamp, dome lamp, time delay relay, glove box lamp,
and vanity lamps. Check for proper operation of
these items
• Move the switch to its various positions and lis­
ten for the motors to click or try to move. Some
movement or clicking indicates a poor connection or a
mechanical problem with a mirror
• Check the ground for the power mirror switch
S C H E M A T I C S A N D D I A G R A M S
WIRING DIAGRAM INDEX
The following index covers all components found in
this section of the wiring diagrams. I f the component
you are looking for is not found here, refer to section
8W-02 for a complete list of all components shown i n
the wiring diagrams.