Part 4

Exterior Lighting

FRONT FOG LAMP (If Fitted)









Front fog lamps are an optional fitment on low specification vehicles and a standard fitment on high specification vehicles.
Two front fog lamps are located in apertures in the front bumper. The front fog lamps are located in the front bumper. Each lamp is secured to three lugs in the bumper and retained with self tapping screws and fasteners. Each lamp has an adjustment wheel which provide for the vertical alignment of the beam. Access to the adjustment wheel requires removal of the lamp bezel.
The fog lamp uses a 55W halogen H11 bulb which is located in a holder. The holder is located in a hole in the rear of the fog lamp housing and is turned to lock in position.
The front fog lamps are controlled by the lighting control switch. When the ignition is in ignition mode 6 and the lighting control switch is in the side lamp or headlamp position, the lighting control fog lamp switch can be pushed to activate the front fog lamps.
If the switch is pushed a second time the front fog lamps are switched off. A front fog lamp warning indicator is illuminated in the instrument cluster when the front fog lamps are active.
If the fog lamps are active when the lighting control switch is moved to the off position or the ignition is switched off, the fog lamps are de-activated and will need to be reselected on (if required) when the side lamps or headlamps are next selected on.

Front Fog Lamps Functionality (NAS and Canadian Markets Only)
The front fog lamps are powered by an additional relay (relay 5) which is located in the EJB in the engine compartment.
The front fog lamps operate as described previously but with the following differences which cover local laws governing lamp usage.
If the low beam headlamps and the front fog lamps are on at the same time, when the high beam headlamps are switched on, the front fog lamps will be automatically switched off. When the high beam headlamps are switched off, the front fog lamps will be switched back on automatically.

NOTE:
The front fog lamps will also be switched off if the headlamp high beam flash function is operated.


REAR LAMP ASSEMBLY









The rear lamp assembly is a one piece unit which contains a stop lamp, a rear side lamp, a turn signal indicator lamp, a second rear side lamp, a reversing lamp and a fog lamp. Light Emitting Diode (LED)'s are used for the tail lamp, stop lamp and turn signal indicator lamp. Reversing lamp and fog lamp use bayonet fitting bulbs. These are located in holders which fit into the applicable hole in the lamp housing and are locked by rotating. Each bulb holder is connected by wires to a connector on the rear of the lamp housing.
The rear lamp assembly is located in a recess in the vehicle body. Two studs on the outer edge of the lamp housing locate in the vehicle body. The lamp is secured with two screws which are located on the inner edge of the lamp housing, near the tailgate aperture.

Rear Stop Lamp
The upper lamp is the inner section of the upper of the two main lamps and uses 12 LED's.
The stop lamp is activated when the ignition is in ignition mode 6 and the brake pedal switch is active (by depressing the brake pedal). The high mounted stop lamp will also be activated when the brake pedal is pressed.
The stop lamps can also be activated by the ABS when Hill Descent Control (HDC) is active. A signal from the ABS module energizes a relay which supplies power to the stop lamps and high mounted stop lamp. For additional information, refer to Anti-Lock Control - Traction Control Description and Operation

Turn Signal Indicator Lamp
The turn signal indicator lamp is the inner section of the lower of the two main lamps and uses 12 LED's.
The turn signal indicator lamps are operated by the LH steering column multifunction switch or by the hazard flasher switch. The steering column multifunction switch is only active with the ignition switch is in ignition mode 6, the hazard flasher switch is active at all times. When active, the turn signal indicator lamps will flash at a frequency cycle of 400ms on and 400ms off.

Side Lamp
The side lamp is the outer ring of both upper lamps and use 12 LED's in each lamp.
The lamps are operated by selecting side lamps or headlamps on the lighting control switch. The lamps are operational at all times and are not dependant on the ignition switch position. The lamps will also be illuminated when the lighting control switch is in the AUTO position and a 'lights on' signal is received by the CJB from the rain/light sensor.
On NAS market vehicles a side marker lamp is incorporated into the side of the lamp assembly and uses a 5W capless wedge bulb.

Reversing Lamp
The reversing lamp is located below the tail lamp and uses a 21W bayonet fitting bulb.
The reverse lamp is active when the ignition is in ignition mode 6 and the CJB receives a reverse selected signal on the CAN bus. Both manual and automatic transmissions have a reverse switch which senses when reverse is selected.

Rear Fog Lamp
The rear fog lamp is located at the bottom of the rear lamp and uses a 21W bayonet fitting bulb.
The rear fog lamp is controlled by a non-latching switch on the lighting control switch. When the ignition is in ignition mode 6 and the lighting control switch is in the side lamp or headlamp position, the rear fog lamp switch can be pressed to activate the rear fog lamps. A second press of the switch will de-activate the rear fog lamps. A rear fog lamp warning indicator is illuminated in the instrument cluster when the rear fog lamps are active.
If the rear fog lamps are active when the lighting control switch is moved to the off position or the ignition is switched off, the fog lamps are de-activated and will need to be reselected on (if required) when the side lamps or headlamps are next selected on.

SIDE REPEATER LAMP









The side repeater turn signal indicator lamps are located in the driver and passenger doors, below each door mirror. The lamps are clipped into an aperture in the door panel and can be removed by sliding rearwards and releasing the front edge of the lamp from the door. The side repeater lamps use a W5W capless bulb which is located in a holder.
The side repeater lamps have the same functionality as the front and rear turn signal indicator lamps and are operated by the LH steering column multifunction switch or by the hazard flasher switch. The steering column multifunction switch is only active with the ignition is in ignition mode 6, the hazard flasher switch is active at all times. When active, the side repeater lamps will flash at a frequency cycle of 400ms on and 400ms off. If a lamp bulb fails, the remaining turn signal indicator lamps continue to flash at the normal rate.

LEFT HAND STEERING COLUMN MULTIFUNCTION SWITCH









The steering column multifunction switch is located on the left hand side of the steering column and controls the following functions:
- Headlamp low/high beam
- Auto high beam function
- Headlamp high beam flash
- Left/right turn signal indicator lamps
- Trip computer functions. For additional information, refer to Information and Message Center Description and Operation
The high beam on and flash functions are connected on separate wires to the CJB. When the switch is operated in either position an earth path is completed which is sensed by the CJB which activates the selected function.
The turn signal indicator lamps are connected and operate in a similar way with the earth path completed through a separate wire which is sensed by the CJB which activates the applicable turn signal indicator lamps. The turn signal indicators have a 'lane change' feature which operates the turn signal indicators 3 times when the LH steering column switch is operated against spring pressure and released. This feature is controlled by the CJB.

HAZARD FLASHERS
The hazard flashers are controlled by a non-latching switch in the centre of the instrument panel. The hazard flashers operate at all times when selected and are not dependant on ignition mode.
When the hazard flashers are selected on, all of the front, rear and side turn signal indicator lamps operate as previously described and both left and right turn signal warning indicator in the instrument cluster also flash. The hazard warning flashers flash at a rate of 380ms on and 380ms off. When the hazard flashers are active, they override any request for turn signal indicator lamp operation.
If a trailer is fitted, the trailer turn signal indicator lamps will flash at the same frequency as the vehicle indicators. The trailer warning indicator in the instrument cluster will also flash. If a trailer bulb is defective, the trailer warning indicator will not flash.
The hazard flashers can also be activated by a crash signal from the Restraints Control Module (RCM). This is received by the CJB which activates the hazard flashers. The hazard flashers can be cancelled by changing the ignition mode to accessory mode 4 or off or the crash mode is cancelled by the RCM. For additional information, refer to Air Bag Systems Description and Operation

LICENSE PLATE LAMPS





Two license plate lamps are fitted in the tailgate handle, above the license plate in the upper tailgate. Each lamp uses a 5W capless wedge type bulb. The lamps are secured in the upper tail gate handle with integral clips. The lamps can be released from the handle using a small, flat blade screwdriver.
The license plate lamps are active at all times when the side lamps or headlamps are switched on.

HIGH MOUNTED STOP LAMP









The high mounted stop lamp is located in the upper tailgate. The stop lamp housing also provides location for the tail door window washer jet.
The lamp comprises a plastic housing with a red colored lens. The lamp is illuminated by a number of LED's.
The high mounted stop lamp is activated, along with the stop lamps, when the ignition is in ignition mode 6 and the brake pedal switch is active (by depressing the brake pedal).
The high mounted stop lamp and the stop lamps can also be activated by the ABS when Hill Descent Control (HDC) is active. A signal from the ABS module energizes a relay which supplies power to the stop lamps. For additional information, refer to Anti-Lock Control - Traction Control Description and Operation

TRAILER LIGHTING
Several different types of trailer socket can be fitted to the vehicle depending on market specifications. Refer to the Electrical Reference Library for specific socket details.
The CJB monitors the turn signal lamps and can detect if more than two lamps are fitted (the side repeater turn signal indicator lamps are not monitored). When a trailer is detected, the trailer warning indicator in the instrument cluster will flash in synchronization with the turn signal indicators.
If one or more of the turn signal indicator lamps on the vehicle or the trailer are defective, the trailer warning indicator will not flash to alert the driver to the bulb failure.

DIAGNOSTICS
The diagnostic socket is located in the lower instrument panel closing panel, on the driver's side, below the steering column. Various lighting system functions are monitored by different systems which can store fault information. This can be retrieved using an approved Land Rover diagnostic system or other suitable scan tool.


AFS Control Module Fault Monitoring
The AFS control module has the capability to monitor faults within the AFS. The control module can store Diagnostic Trouble Codes (DTC's) relating to the symptoms shown in the following table.





Central Junction Box (CJB)
The CJB monitors the status of the lighting circuits, relays and switches. If a fault occurs, the CJB stores a fault code applicable to the specific fault which can be retrieved using an approved Land Rover diagnostic system or other suitable scan tool.

CONTROL DIAGRAM

NOTE:
A = Hardwired; D = High Speed CAN Bus; N = Medium speed CAN bus; O = LIN Bus









AUTO HIGH BEAM CONTROL DIAGRAM

NOTE:
A = Hardwired; D = High Speed CAN; N = Medium Speed CAN; O = LIN Bus