Range Rover (LM) V8-4.4L (2009)
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Tail Lamp: Description and Operation
Tail Lamp Assembly
The rear tail and turn signal indicator lamp assemblies are located on the outer corner of each rear wing panel.
The lamp assembly is retained by two integral plastic clips which locate in corresponding clips secured to the body panel. The assembly is further
retained by two self tapping screws which are accessed from inside the taildoor aperture. To remove the assembly, after removing the screws, the
assembly must be prised at two indentations to release the clips. A non-metallic tool must be used with care to avoid damage to the paint finish.
The direction indicator, fog lamp and side lamp bulbs are located in a holder. The holder is secured in the lamp housing by two plastic clips. The holder
has a connector to allow for connection to the electrical harness.
The upper lamp aperture is for the stop lamp and the turn signal indicator. The stop lamp comprises a plastic holder with contains 19 LED's. This
illuminates through a circular prism lens in the center of the lamp to display the stop lamp in a red color. The turn signal indicator lamp is located behind
the stop lamp LED unit. The bulb is located in a reflector unit which emits the turn signal indicator light around the outer diameter of the stop lamp LED
assembly.
On 3.0 Td6 and 4.4L V8 models, the turn signal indicator uses a PY21W orange bulb. On 4.2L V8 supercharged models a PW21W Osram Diadem bulb
is used. The Diadem bulb emits an orange light when illuminated but is not orange colored when inactive.
The lower lamp aperture is divided into two parts and provides for the tail lamp and the rear fog lamp.
The rear fog lamp uses different bulbs depending on model. On 4.4L V8 models the rear fog lamp uses a P21W bayonet fitting bulb. On 4.2L V8
supercharged models the rear fog lamp uses a PR21W. This is also used for the tail lamp, operated by a PWM output from the LCM to produce a lower
wattage output than the fog lamp.
The upper half of the tail lamp aperture is used solely for the tail lamp and uses a P21W/5W bulb on 4.4L V8 models and a PR21/5W bulb on 4.2L V8
supercharged models. Only the 5 W filament is used for the tail lamp, with the 21 W filament not used by any function.
On NAS vehicles, an additional lamp holder is used to accommodate the side marker lamp. The lamp assembly lens has a vertical section which is used
as the side marker illumination required for the NAS market. The side marker lamp bulb is a 5 W bayonet fitting.
All bulbs in the tail lamp assembly are monitored by the LCM and, if a failure is detected, alerts the driver via the instrument cluster message center.
