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

Description (page 3 of 7)

Make
Land Rover
Model
Range Rover L322 Range Rover System Description and Operation
INSTRUMENTSDescription · page 3 of 7
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INSTRUMENTS

88-26

DESCRIPTION AND OPERATION

Test Function No. 2 – System Test

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Test function 2 is not locked and can accessed immediately. After selection the instrument pack automatically 
activates all displays and analogue gauges. This test will only be performed with the ignition in positions I or II 
and the engine not running.

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The backlighting of all LCD's are activated.

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All segments for the odometer, trip meter, ambient temperature and service interval indicator are illuminated.

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All warning lamps are illuminated.

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A pixel test of the message centre is alternately performed to display a 'chess board' pattern. The pixels are 
alternately illuminated at intervals of 1.25 seconds. The trip meter display alternates between km and miles 
and the ambient temperature alternates between 

°

F and 

°

C.

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The general brake warning lamp alternates between an amber and red output.

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All analogue gauges are activated and travel from the left stop to the right stop and back to the left stop.

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When all gauges have returned to their left stop all displays remain illuminated. A second activation of the 
analogue gauges follows, but this time the needle pointers stop before the right stop position. During this 
gauge cycle, the instrument pack performs self diagnostics on the gauge operation and records fault data if 
necessary. This diagnostic check of the gauges is only performed during test function 2 and the data can be 
retrieved using TestBook/T4.

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When the second gauge cycle is complete, normal instrument pack display is resumed.

Test Function No. 3 – Service Interval Indicator Data

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This function is locked and needs to be unlocked via the procedure in Function Test No. 19. The following data 
is displayed and can be scrolled through using the trip reset button.

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'SI-L: 1250' – SI litres used since the last service interval reset.

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SI DAYS: 325' – SI time counter since last service interval reset.

Test Function No. 4 – Momentary Fuel Consumption Values

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This function is locked and needs to be unlocked via the procedure in Function Test No. 19. The following data 
is displayed and can be scrolled through using the trip reset button.

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'VBR: 14.3 L/100 KM – momentary consumption in l/100 km for calculation of consumption values.

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VBR: 20.3 L/H – momentary consumption in litres per hour for consumption assessments when the vehicle 
is stationary with the engine running.

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The consumption values are calculated from PWM injector signals which correspond to the injected fuel volume.

Test Function No. 5 – Range Consumption and Range Momentary Value

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This function is locked and needs to be unlocked via the procedure in Function Test No. 19. The following data 
is displayed and can be scrolled through using the trip reset button.

The value can be displayed in litres/100km or in MPG, dependant on market programming.

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'RW-VBR: 12.7 L/100KM' – average fuel consumption.

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'RW: 3238 KM' – range with remaining fuel tank volume.

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The internal fuel range consumption value displayed in the on-board computer is calculated using the figures for 
average tank contents and the distance travelled since the last reset. The fuel range value displayed is calculated 
using the same figures to show the available range with the remaining fuel in the tank.

Test Function No. 6 – Tank Content Values and Display Value

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This function is locked and needs to be unlocked via the procedure in Function Test No. 19. The following data 
can be scrolled through using the trip reset button. The first display line shows the tank content from the left and 
right fuel tank level sensors and the overall tank content. The second display line shows the average overall tank 
content and the value after 'PHASE' relates to the procedure used to calculate the content value.

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'TNK: 29.5/34.2/63.7L' – this shows content in left half of tank / content in right half of tank / momentary overall 
tank content.

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'TNKANZ: 60.2L PHASE1' – average tank content and calculation method. The PHASE shows the calculation 
method as defined below.

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PHASE1 = Normal calculation procedure using both sensors with no errors.

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PHASE2 = In the case of a tank level sensor failure, the calculation is performed using the injector PWM 
signal available on the CAN.

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PHASE3 = If a sensor failure has occurred and the injector PWM signal is not available, the fuel level 
gauge will read empty and the low fuel warning lamp will be illuminated.

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