Discovery II (LT) V8-4.0L (2002)
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Suspension Warning Indicator: Description and Operation
Active Cornering Enhancement (ACE) Warning Lamp
Active Cornering Enhancement (ACE) warning lamp
On vehicles fitted with ACE an LED within the instrument pack is used to alert the driver that the ACE ECU has detected a fault in the system, providing
the driver with a visible warning. The ACE warning lamp utilises an amber LED and a clear legend.
When the ignition is switched on the ACE ECU illuminates the LED to provide a self-check, providing there is no fault it will remain illuminated for 3
seconds or until the ignition is switched off.
The power input for the LED is supplied by the instrument pack via fuse 27. The ACE ECU provides the earth path to illuminate the warning lamp.
The voltage on the earth path from the ACE ECU to the instrument pack has the following functions:
^
< 1.8 volts = warning lamp on.
^
> 7.7 volts = warning lamp off.
