Range Rover P38
ABS
23
DESCRIPTION AND OPERATION
Warning lamp functionality
System Condition
ABS Warning Lamp -
Amber
ETC Lamp - Amber
Brake Warning Lamp -
Red
Bulb check with no
faults in ECU memory
and system
pressurised.
Lamp ON for 1 second,
then goes OFF for 0.5
second, then ON until
vehicle speed exceeds
4.3 mph (7 km/h).
Lamp OFF for 1 second,
ON for 3 seconds, then
goes OFF.
Lamp ON for 3 seconds,
then goes OFF providing
handbrake is off and
fluid level is correct.
Ignition ON, system
being pressurised.
Lamp ON until 110 bar
(1595 lbf.in
2
) pressure in
system. Lamp will stay
ON until vehicle speed
exceeds 4.3 mph
(7 km/h).
Lamp ON until 110 bar
(1595 lbf.in
2
) pressure in
system.
Lamp ON until 110 bar
(1595 lbf.in
2
) pressure in
system.
Bulb check with fault
stored in ECU
memory, but no
current fault present.
Lamp ON until vehicle
speed exceeds 4.3 mph
(7 km/h).
Lamp OFF for 1 second,
then ON for 3 seconds,
then goes OFF.
ON for 3 seconds, then
goes OFF providing
handbrake is off and
fluid level is correct.
Bulb check with fault
present and stored in
ECU memory.
Lamp stays ON until
ignition is turned off.
Lamp ON for 3 seconds,
then goes OFF.
Lamp ON for 3 seconds,
then goes OFF providing
handbrake is off and
fluid level is correct.
ABS fault condition
detected by ECU.
Lamp stays ON, ’ABS
FAULT’ displayed in
instrument pack
message centre.
Lamp stays OFF.
Lamp stays OFF.
ABS fault/ETC fault
condition detected by
ECU.
Lamp stays ON, ’ABS
FAULT’ displayed in
instrument pack
message centre.
Lamp stays ON,
’TRACTION FAILURE’
displayed in instrument
pack message centre.
Lamp ON, only if ABS
pump/pressure switch
fault is detected by ECU.
ABS system active.
Lamp stays OFF.
Lamp stays OFF.
Lamp stays OFF.
ETC system active.
Lamp stays OFF.
Lamp is ON for a
minimum of 2 seconds.
Lamp stays OFF.
ETC system fault
detected by ECU.
Lamp stays OFF.
Lamp stays ON.
Lamp stays OFF.
Diagnostic operation
Lamp stays ON.
Lamp stays ON.
Lamp stays ON.
