413-01 Instrument Cluster: Description And Operation (page 8 of 17)

 
The functionality for each of the above warning indicators is described below. Some warning indicators are accompanied 
by a chime from the instrument pack when they are illuminated and also a message in the message center on high line 
instrument clusters. Some indicators are only available on the low line instrument cluster, with the indicators being 
replaced with messages on the high line instrument cluster. 
 
1. Air Suspension Indicator  
 
The air suspension indicator is illuminated by the instrument cluster software on receipt of a CAN signal from the air 
suspension control module. The air suspension control module outputs a number of different signals relating to the air 
suspension system operation. The instrument cluster interprets the signals and can illuminate the indicator in either an 
amber or red colour as appropriate. Some signals also include requests for chimes from the instrument cluster to alert the 
driver. 
 
2. Transfer Box Low Range Indicator  
 
The transfer box low range indicator is illuminated by the instrument cluster software on receipt of CAN signals from the 
transfer box control module. When a range change from high to low range is in progress, the low range indicator flashes 
in an green color. When the range change is complete, the low range indicator remains permanently illuminated until high 
range is selected. 
 
The transfer box control module also requests a single chime from the instrument cluster to alert the driver that the 
requested range change is complete. On high line instrument clusters, the range change information is also displayed in 
the message center. 
 
3. Hill Descent Control (HDC) Active Indicator  
 
The HDC active indicator is illuminated by the instrument cluster software on receipt of CAN signals from the ABS 
module. The indicator is illuminated in a green color when HDC is active and the vehicle speed is below a predetermined 
threshold. If the vehicle speed is faster than the threshold limit, the HDC indicator will flash until the vehicle speed is 
reduced. On high line instrument clusters a supporting message will also be displayed in the message center. For 
additional information, refer to   

Anti-Lock Control - Traction Control

 (206-09A Anti-Lock Control - Traction Control) 

 
 
If the use of HDC causes the brake discs to exceed their pre-determined temperature, the HDC system initiates a 'fade 
out'. The HDC indicator flashes during 'fade out' and on high line instrument clusters a supporting message is displayed in 
the message center. When the brake discs have cooled sufficiently, HDC is reactivated and the HDC indicator is 
permanently illuminated. 
 
4. Dynamic Stability Control (DSC)/Traction Control Indicator  
 
The DSC/traction control 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 for 3 seconds for a bulb check when the ignition is switched 
on. If no faults exist, the indicator is extinguished after the bulb check period. 
 
When DSC is active, the indicator flashes to inform the driver that the system is regulating engine output and braking 
forces. If the indicator remains illuminated after the bulb check period or illuminates when driving, the DSC system has a 
fault or DSC has been deselected by the driver using the DSC switch on the fascia. 
 
5. Ignition/No Charge Indicator  

28

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Water in fuel (non-functional)

29

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Driveline overheat

30

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Low washer fluid

31

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Door open

32

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Park brake city mode (non-functional)

33

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Tyre pressure warning

34

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Low coolant

35

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Overspeed warning (Gulf only)

36

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Park brake fault (NAS only)

37

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Park brake warning (NAS only)

38

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Brake warning (NAS only)

39

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Adaptive Cruise Control (ACC) (if fitted)