Dodge Durango (HB). Manual - part 408
OPERATION
The power mirror switch circuitry is connected to battery current through a fuse in the IPM on a fused B(+) circuit
so that the power mirrors remain operational regardless of the ignition switch position. A rotary joystick selector
switch has three positions, one to select the right mirror, one to select the left mirror, and a center Off position. After
the right or left mirror is selected, the joystick is moved to move the selected mirror Up, Down, Right or Left. In
vehicles without Memory Mirrors the power mirror switch circuitry controls the battery current and ground feeds to
each of the four (two in each mirror head) power mirror motors. In vehicles with Memory Mirrors the mirror switch
connects to the driver power mirror module. The driver memory mirror module uses the mirror switch inputs to con-
trol the battery current and ground feeds to driver mirror motor and sends a CAN Bus message to the passenger
mirror module. The passenger mirror module controls the battery current and ground feeds to passenger mirror
motors based on the CAN bus message from the driver memory module.
DIAGNOSIS AND TESTING
POWER MIRROR SWITCH
1. Disconnect and isolate the battery negative cable. Remove the power mirror switch. Disconnect the wire harness
connector from the switch.
2. Test the switch continuity. See the Switch Tests chart to determine if the continuity is correct for the suspect
switch in each switch position. If not OK, replace the inoperative switch as required.
POWER MIRROR SWITCH TEST
SWITCH POSITION
CONTINUITY BETWEEN
PINS OF MIRROR
SWITCH
LEFT MIRROR SELECTED
UP
PINS 5 & 7, PINS 4 & 3
DOWN
PINS 4 & 7, PINS 5 & 3
RIGHT
PINS 4 & 9, PINS 5 & 3
LEFT
PINS 4 & 3, PINS 5 & 9
RIGHT MIRROR SELECTED
UP
PINS 4 & 3, PINS 5 & 6
DOWN
PINS 4 & 6, PINS 5 & 3
RIGHT
PINS 4 & 8, PINS 5 & 3
LEFT
PINS 4 & 3, PINS 5 & 8
HB
POWER MIRRORS - SERVICE INFORMATION
8N - 145