LR3/Disco 3
bulb check when the ignition is moved to position II. The lamp is extinguished when the engine starts. Engine
management faults which do not affect emissions will permanently illuminate the EMS fault indicator. The indicator will
only extinguish when the fault has been rectified.
Reduced engine performance or limp home operation is also signalled to the driver by the EMS fault indicator.
26. Driveline Fault Indicator
The Driveline fault indicator is controlled by transfer box control module, rear differential control module and the
transmission control module and the instrument cluster software. The indicator is illuminated by the instrument cluster on
receipt of a CAN signal of either of the controlling modules. The instrument cluster interprets the signals and can
illuminate the indicator in either an amber or red colour as appropriate for faults relating to either the transfer box, rear
differential or the automatic transmission. Amber illumination signifies a minor fault which should be rectified when
convenient, Red illumination signifies a major fault which should be rectified at the earliest opportunity.
27. Hill Descent Control (HDC) Fault Indicator
The HDC fault indicator is only available on low line instrument clusters; on high line instrument cluster fault information is
displayed by appropriate messages in the message center. The HDC fault indicator is illuminated by the instrument
cluster software on receipt of CAN signals from the ABS module. The indicator is illuminated in an amber color when a
HDC fault is present. The indicator is illuminated in an amber color for a 3 second bulb check when the ignition is moved
to position II. If a fault occurs in the HDC system, the amber indicator is illuminated For additional information, refer to
Anti-Lock Control - Traction Control
(206-09A Anti-Lock Control - Traction Control)
During the bulb check, if the indicator comes on for 0.5 second, then goes off for 0.5 second and is then illuminated for
the remaining 2 seconds of the bulb check, this indicates that faults are stored in the ABS module memory.
If the indicator was illuminated due to a sensor fault, the indicator will remain illuminated at the next ignition cycle, even if
the fault is rectified. When the vehicle is driven above a speed of 20 km/h (12.5 mph) the indicator will be extinguished.
This allows the ABS module to perform a thorough check of the system and to establish that the output from the replaced
sensor is correct.
If the use of HDC causes the brake discs to exceed their pre-determined temperature, the HDC system initiates a 'fade
out'. The HDC fault indicator flashes during 'fade out'. When the brake discs have cooled sufficiently, HDC is reactivated
and the HDC fault indicator is extinguished.
28. Water In Fuel Indicator
This indicator is non-functional.
29. Driveline Overheat Indicator
The driveline overheat indicator is controlled by the instrument cluster software on receipt of CAN signals from the
transfer box control module, rear differential control module or the transmission control module for the automatic
transmission. The indicator is illuminated in an amber color for a 3 second bulb check when the ignition is moved to
position II. When one or more of the control modules sense that the controlled component has reached its over
temperature threshold, the applicable control module(s) transmits a CAN signal to the instrument cluster which illuminates
the indicator for as long as the over temperature condition exists.
30. Low Washer Fluid Indicator
The low washer fluid indicator is only available on low line instrument clusters; on high line instrument cluster the level
information is displayed by appropriate messages in the message center. The low washer fluid indicator is controlled by
the instrument cluster. The washer fluid level sensor is hardwired into the instrument cluster which monitors the sensor
output. The indicator is illuminated in an amber color for 3 seconds when the ignition is moved to position II. When the
fluid in the washer reservoir falls to a predetermined level, the instrument cluster senses the signals from the sensor and
illuminates the indicator and emits a single warning chime to alert the driver. The instrument cluster monitors the level
sensor signals every 15 seconds to prevent incorrect warnings occurring due to fluid movement. When the reservoir is
replenished the indicator is extinguished.
31. Door Open Indicator
The door open indicator is controlled by the instrument cluster on receipt of CAN signals from the Central Junction Box
(CJB). The indicator is illuminated in a red color if any of the front or rear passenger doors, the driver's door, the bonnet or
the tail gate are left open with the ignition switch in position II.
32. Park Brake City Mode Indicator
