Land Rover Discovery: Speed Control Sensor
Adjustment (G1780345)
/ General Procedures
SPECIAL TOOL(S)
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CHECK
NOTES:
- Special tool 310-148 is graduated in 0.5 degree increments.
- Removal steps in this procedure may contain installation details.
WARNING:
Make sure to support the vehicle with axle stands.
Raise and support the vehicle.
Refer to: Front Bumper Cover (501-19 Bumpers, Removal and
Installation).
NOTE:
Make sure that the special tool is installed to the front of the
speed control sensor as it is shown in the illustration to check
the level.
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Special Tool(s): 310-148
ADJUSTMENT
NOTES:
- The speed sensor has no mechanical horizontal adjustment.
- The speed sensor must point down by 0.5 degrees.
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Special Tool(s): 310-148
- From the diagnostic tool menu, select: Service Alignment
Mode.
- The follow indicator will now be flashing, this indicates that the
vehicle is in "service alignment" and now requires driving.
- The vehicle speed must be above 30 mph (48 kph).
- Choose a road with plenty of stationary objects, like street
lights, road signs, or barriers. Use an inside or outside lane.
- Following vehicles too closely will obscure the stationary
targets from the radar, a time gap of 2 seconds is
recommended.
- A straight road will produce a quicker and better result,
although the process will still operate on a curved road.
- When the flashing follow indicator light extinguishes, the ACC
system is now functional, and a required vehicle speed can now
be set by the driver and the ACC system will operate as
normal.
Speed Control Specifications
Vehicles with Adaptive Speed Control System:
NOTE:
The speed control sensor must point down by 0.5 degrees.
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Vehicles without Adaptive Speed Control System:
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PRINCIPLES OF OPERATION
For a detailed description of the Speed Control system, refer to the relevant
Description and Operation section in the workshop manual. REFER to:
Speed Control (310-03 Speed Co
REMOVAL
NOTE:
Removal steps in this procedure may contain installation details.
Make the air bag supplemental restraint system (SRS) safe.
Refer to: Standard Workshop Practices (100-00 General
Inform
SEE MORE:
Installation
Dress the flanges where necessary
Using the old B-pillar outer panel for reference measure, mark and
cut the new B-pillar outer panel where the Metal Inert Gas (MIG)
welded butt joints are to be made as indicated.
Offer up the new B-pillar outer panel and clamp into position.
COMPONENT LOCATION
Head Up Display (HUD) Control Module
HUD Cooling Fan Motor
Head Up Display Cooling Fan Control Module (HUDCFCM)
Instrument Cluster (IC)
OVERVIEW
INSTRUMENT CLUSTER
The Instrument Cluster (IC) comprises of two analogue gauges for the
speedometer, a tachometer and a 5 inch T