Dodge Dakota 2001, Service Manual

Page: 498 / 2307

lock and power window switch paddles, and the
power mirror switch directional buttons to improve
switch visibility in dark ambient lighting conditions.
The DDM cannot be adjusted or repaired and, if
faulty or damaged, the entire DDM unit must be
replaced.
OPERATION
The Driver Door Module (DDM) combines a power
lock switch, a driver power window switch with an
Auto-down feature, master switches for each passen-
ger door power window, a power window lockout
switch, a power mirror selector switch, and four
power mirror adjustment switches in a single unit.
The switches in the DDM can be diagnosed using
conventional diagnostic tools and methods.
Power Lock Switch
The DDM power lock switch circuitry is connected
in series between ground and the driver door switch
mux input of the Central Timer Module (CTM). Each
power lock switch position (Lock, Unlock, and Neu-
tral) provides a different resistance value to the CTM
input, which allows the CTM to sense the switch
position. Based upon the power lock switch input, the
CTM controls the battery and ground feed outputs to
the individual power lock motors to lock or unlock
the door and liftgate latches. The Light-Emitting
Diode (LED) in the DDM power lock switch is con-
nected to battery current through the power window
circuit breaker in the Junction Block (JB) on a fused
ignition switch output (run-acc) circuit so that the
switch will be illuminated whenever the ignition
switch is in the On or Accessory positions.
Power Window Switches
The DDM power window switch circuitry is con-
nected to battery current through a circuit breaker in
the Junction Block (JB) on a fused ignition switch
output (run-acc) circuit so that the power windows
will operate whenever the ignition switch is in the
On or Accessory positions. Each two-way, momentary
master passenger power window switch in the DDM
provides battery current and ground to the individual
power window switches on each passenger door so
that the power window switch controls the battery
current and ground feeds to its respective power win-
dow motor. The DDM switch for the driver side front
door power window is labeled with the text “Auto”
and includes an auto-down feature. When this switch
is depressed to a second momentary detent position
and released, the driver door power window is auto-
matically operated through an internal circuit and
relay to its fully lowered position. The Auto-down
event is cancelled if the switch paddle is depressed a
second time in either the Up or Down direction.
When the two position window lockout switch in the
DDM is depressed and latched in the lockout posi-
tion, the battery current feed to each of the individ-
ual passenger power window switches is interrupted
so that the passenger door power windows can only
be operated from the master switches in the DDM.
The window lockout switch also controls the battery
current feed for the LED in each passenger power
window switch so that the switch will not be illumi-
nated when it is locked out.
Power Mirror Switches
The DDM power mirror switch circuitry is con-
nected to battery current through a fuse in the JB on
a fused B(+) circuit so that the power mirrors remain
operational regardless of the ignition switch position.
A rocker type selector switch has three positions, one
to select the right mirror, one to select the left mir-
ror, and a neutral Off position. After the right or left
mirror is selected, one of four directional buttons is
depressed to move the selected mirror Up, Down,
Right or Left. The DDM power mirror switch cir-
cuitry controls the battery current and ground feeds
to each of the four (two in each mirror head) power
mirror motors. The Light-Emitting Diode (LED) in
the DDM power mirror switch is connected to battery
current through the power window circuit breaker in
the Junction Block (JB) on a fused ignition switch
output (run-acc) circuit so that the switch directional
buttons will be illuminated whenever the ignition
switch is in the On or Accessory positions.
DIAGNOSIS AND TESTING - DRIVER DOOR
MODULE
The Light-Emitting Diode (LED) illumination
lamps for all of the Driver Door Module (DDM)
power
window, power lock, and power mirror
switches receive battery current through the power
window circuit breaker in the Junction Block (JB). If
all of the LEDs are inoperative in the DDM, be cer-
tain to diagnose the power window system before
replacing the switch unit. (Refer to 8 - ELECTRI-
CAL/POWER WINDOWS - DIAGNOSIS AND TEST-
ING). If only one LED in the DDM is inoperative,
replace the faulty DDM. If the driver side front door
power window operates in a normal manner, but the
Auto-Down feature is inoperative, replace the faulty
DDM. Refer to the appropriate wiring information.
The wiring information includes wiring diagrams,
proper wire and connector repair procedures, details
of wire harness routing and retention, connector pin-
out information and location views for the various
wire harness connectors, splices and grounds.
(1) Disconnect and isolate the battery negative
cable. Remove the DDM from the door trim panel.
AN
POWER LOCKS 8N - 7
DRIVER DOOR MODULE (Continued)