Raider 4WD V6-3.7L SOHC (2007)
Control Module: Description and Operation
Transfer Case Indicator Lamp
SHIFT INDICATOR (TRANSFER CASE)
4WD LOCK INDICATOR
A 4WD lock indicator is standard equipment on all instrument clusters. However, on vehicles not equipped with the optional four-wheel drive system
and electronically shifted transfer case, this indicator is electronically disabled. The 4WD lock indicator is located below the minor gauge set on the left
side of the cluster.
The 4WD lock indicator consists of a stencil-like cut-out of the text 4LOCK in the opaque layer of the instrument cluster overlay. The dark outer layer of
the overlay prevents the indicator from being clearly visible when it is not illuminated. An amber Light Emitting Diode (LED) behind the cutout in the
opaque layer of the overlay causes the indicator to appear in amber through the translucent outer layer of the overlay when it is illuminated from behind
by the LED, which is soldered onto the instrument cluster electronic circuit board.
When the exterior lighting is turned ON, the illumination intensity of the 4WD lock indicator is damnable, which is adjusted along with the cluster
general illumination lighting using the panel lamps dimmer thumbwheel on the headlamp switch. The 4WD lock indicator is serviced as a unit with the
instrument cluster.
4WD LOW INDICATOR
A 4WD low indicator is standard equipment on all instrument clusters. However, on vehicles not equipped with the optional four-wheel drive system and
electronically shifted transfer case, this indicator is electronically disabled. The 4WD low indicator is located below the minor gauge set on the left side
of the cluster.
The 4WD low indicator consists of a stencil-like cutout of the text 4LO in the opaque layer of the instrument cluster overlay. The dark outer layer of the
overlay prevents the indicator from being clearly visible when it is not illuminated. An amber Light Emitting Diode (LED) behind the cutout in the
opaque layer of the overlay causes the indicator to appear in amber through the translucent outer layer of the overlay when it is illuminated from behind
by the LED, which is soldered onto the instrument cluster electronic circuit board.
When the exterior lighting is turned ON, the illumination intensity of the 4WD low indicator is damnable, which is adjusted along with the cluster
general illumination lighting using the panel lamps dimmer thumbwheel on the headlamp switch. The 4WD low indicator is serviced as a unit with the
instrument cluster.
4WD LOCK INDICATOR
The 4WD lock indicator gives an indication to the vehicle operator when the electronic transfer case has been shifted into the 4WD lock mode. This
indicator is controlled by a transistor on the instrument cluster circuit board based upon cluster programming and electronic messages received by the
cluster from the Front Control Module (FCM) (also known as the Integrated Power Module/IPM) over the Controller Area Network (CAN) data bus.
The 4WD lock indicator Light Emitting Diode (LED) is completely controlled by the instrument cluster logic circuit, and that logic will only allow this
