L322 Range Rover System Description and Operation
BRAKES
70-22
DESCRIPTION AND OPERATION
The LCM receives the message and illuminates the warning lamp and generates the low brake fluid message for the
message centre. If the ground signal is momentary, the LCM signals the Instrument cluster of the condition. The
instrument cluster then informs the ABS ECU over the CAN bus. If the signal is received prior to the activation of the
pre-charge pump, the pre-charge pump activation is delayed.
If the signal is present for more then 25 seconds, the LCM issues two I BUS messages for the Instrument Cluster:
l
Post “Brake Fluid Level ”in the Message centre
l
Notify the ABS via CAN that the Fluid level has been low for more than 25 seconds.
The ABS ECU immediately switches DSC functions off and continuously illuminates the DSC indicator in the cluster.
DSC System Warning Lamps
Instrument Pack Warning Lamps
1 HDC lamp
2 Brake warning lamp
3 Brake assist /brake warning lamp
4 ABS warning lamp
5 DSC warning / information lamp
M70 1184
1/2
1/1
MPH
30
110
130
150
10
90
90
50
70
5
4
3
1
2