Range Rover P38
BMW DIESEL
11
DESCRIPTION AND OPERATION
Cruise control
The required driving statuses: acceleration or resume
driving speed can be set or selected using the
steering wheel switches. These functions are active
with a vehicle speed of more than 40 km/h (25 mph).
Air conditioning compressor cut-out
The ECM switches off the air conditioning compressor
during driving conditions demanding high torque
requirements (starting off, accelerating). The
compressor is also cut-out at high water temperatures
(more than 110
°
C) in order to protect the engine.
Self-diagnosis
The task of the self-diagnosis function is to detect
malfunctions in the DDE system and to make
available substitute values and emergency programs.
The ECM stores a record of faults, including
intermittent faults which can be interrogated using
TestBook.