Workshop Manuals Factory service & repair Land Rover
01 Range Rover 2002MY ON Workshop Manual - System Description and Operation - LM - 6th Edition - NAS02 03 04 05 06 07 08 09 ENGINE - V810 11 12 ENGINE MANAGEMENT SYSTEM – V813 14 FUEL DELIVERY SYSTEM – V815 16 17 18 19 20 COOLING SYSTEM – V821 22 MANIFOLDS AND EXHAUST SYSTEM – V823 TRANSFER BOX24 AUTOMATIC TRANSMISSION – ZF 5HP2425 26 DRIVE AND PROPELLER SHAFTS27 28 FINAL DRIVE29 STEERING30 31 SUSPENSION32 33 34 35 BRAKES36 37 38 RESTRAINT SYSTEMS39 40 41 DOORS42 INTERIOR TRIM COMPONENTS43 44 45 SCREENS46 SEATS47 48 SUNROOF49 50 AIR CONDITIONING51 52 53 54 55 56 57 WIPERS AND WASHERS58 59 CHARGING AND STARTING60 61 62 63 64 LIGHTING65 66 BODY CONTROL UNIT67 68 COMMUNICATION DATA BUSES69 70 71 SECURITY72 WINDOWS73 74 75 ENTERTAINMENT AND INFORMATION SYSTEMS76 DRIVING AIDS77 78 INSTRUMENTS
Land Rover L322 Range Rover System Description and Operation78 · INSTRUMENTS
78 · Electrical

Liquid Crystal Display (LCD)

Make
Land Rover
Model
Range Rover L322 Range Rover System Description and Operation
Section
Description › Liquid Crystal Display (LCD)
INSTRUMENTSLiquid Crystal Display (LCD) · page 1 of 4
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INSTRUMENTS

DESCRIPTION AND OPERATION

88-9

The instrument pack is connected via two wires to the Engine Coolant Temperature (ECT) sensor. This sensor has a 
four pin connector, with the remaining two pins connected to the ECM. The ECT sensor is an NTC sensor located in 
the engine coolant flow. The instrument pack outputs a signal voltage to the sensor and measures the returned signal. 
The sensor resistance falls as the coolant temperature increases. The instrument pack microprocessor evaluates the 
returned signal and converts the information into an output drive to position the temperature gauge needle at the 
appropriate position. The engine coolant temperature is available for use by other vehicle systems via the CAN.
 

 + 

 ENGINE MANAGEMENT SYSTEM – Td6, DESCRIPTION AND OPERATION, Description.

 

 + 

 ENGINE MANAGEMENT SYSTEM – V8, DESCRIPTION AND OPERATION, Bosch ME 7.2 Engine 

Management System.

The following table shows coolant temperature relationship to gauge needle pointer position.

The engine coolant temperature gauge is the same on all pack variants. The gauge display has a blue segment for 
low temperatures and a red segment for excessively high temperatures. For normal engine operating temperatures 
the gauge needle pointer is positioned centrally in the gauge display zone.

Liquid Crystal Display (LCD)

1 Total distance odometer
2 Trip meter

3 Ambient temperature display
4 Message centre

The instrument pack has four separate LCD's which show the following data:

l

Odometer – Displays the total vehicle distance travelled

l

Trip meter – Displays the total vehicle distance travelled since last reset

l

Ambient temperature – Displays the external ambient temperature in 

°

C or 

°

F

l

Message centre – Displays system information to the driver.

The LCD is an integral part of the instrument pack. The LCD comprises black segments on a grey background or 
green illuminated when the light switch is on. The LCD is illuminated by backlighting which is provided by five 12V/
1.5W single filament bulbs.

Coolant Temperature

Gauge Needle Pointer Position

15.00

°

C (59.00

°

F)

At beginning of blue segment

50.25

°

C (122.45

°

F)

At end of blue segment

95.25

°

C (203.45

°

F)

At centre of display

126.00

°

C (258.80

°

F)

At centre of red segment

M88 0345

4

1

2

3

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