LR3/Disco 3
The warning indications to the driver differ between the specification of instrument cluster fitted to the vehicle. On vehicles
with a low line instrument cluster, tire pressure warnings are conveyed to the driver by amber and red LED warning
indicators. On high line instrument clusters, warnings are conveyed by an amber LED warning indicator and a text
message displayed in the message center.
The warning indicators on both cluster specifications are driven by CAN messages from the TPMS module. The warning
indicators are illuminated by the cluster software for 3 seconds when the ignition is switched to position II for a bulb check.
NOTE:
When the TPMS module transmits a warning indicator on signal, this may also be accompanied by a chime from the
instrument cluster sounder.
The following table shows the warning indicator functionality for given events for both specifications of instrument cluster.
Item Part Number
Description
A
-
Low line instrument cluster
B
-
High line instrument cluster
1
-
Amber warning indicator
2
-
Red warning indicator
3
-
Message center
If the vehicle is not fitted with the TPMS, the warning indicators will not illuminate at any time.
Event
Low Line Instrument
Cluster
High Line Instrument
Cluster
Minor warning threshold reached in any 'running' tire
Amber LED illuminated
Amber LED illuminated.
Minor warning threshold reached in spare tire (if fitted)
Amber LED illuminated for
20 seconds then
extinguished.
Amber LED illuminated for
20 seconds then
extinguished.
Major warning threshold reached in any 'running' tire
Red LED illuminated.
'XX TIRE PRESSURE
VERY LOW' message
displayed.
Major warning threshold reached in more than one 'running
Amber and Red LEDs
'TYRE PRESSURES VERY
