ACTIVE CORNERING ENHANCEMENT & SPEEDOMETER

DAVE H

MECHANIC
1999 LAND ROVER
V8
4WD
AUTOMATIC
127,000 MILES

MY SPPEDOMETER HAS STOPED WORKING AND THE ACTIVE CORNERING ENHANCEMENT AMBER WARNING LIGHT IS ON. I CHECK ALL FUSES AND ALL ARE OK I DID ADD SOME POWER STERRING FLUID TO THE ACE RESERVOR AS IT WAS A LITTLE LOW.

IT ALSO SOUND DIFFERNT AND SEEMS TO IDIAL HIGHER NOW

THANKS

STEVE G

1 Reply

DAVE H

MECHANIC
13,384 POSTS

Check wiring too or replace the VSS (vehicle speed sensor) located on the transmission.

In the event of an ECU or hydraulic failure, the system will fail safe to a locked bars condition. The locked bars condition will allow the torsion bars to operate in a similar manner as conventional passive anti-roll bars. Prolonged cornering forces will allow a progressive increase in roll angle due to hydraulic leakage through the actuators and valve block. Failures will be relayed to the driver by the illumination of the ACE warning lamp in the instrument pack. Faults are recorded by the ECU and can be retrieved using TestBook.
When the ignition switch is moved to position II, the warning lamp will illuminate for two seconds to check functionality. The warning lamp functionality can also be checked using TestBook.
TestBook must also be used to perform a bleeding procedure after maintenance operations have been performed to ensure that complete system bleeding is performed. Trapped air in the system can seriously reduce the system performance.