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 4 of 7)

Make
Land Rover
Model
Range Rover L322 Range Rover System Description and Operation
INSTRUMENTSDescription · page 4 of 7
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INSTRUMENTS

DESCRIPTION AND OPERATION

88-27

Test Function No. 7 – Momentary Values for Engine Coolant Temperature, Engine Speed and Ambient 
Temperature

l

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.

l

'KTMP: 105

°

C' – This shows the engine coolant temperature. If the ignition is in position II the temperature 

signal is passed on the CAN to the instrument pack. If the ignition is in position I, the temperature signal is 
read from the analogue input from the engine coolant temperature sensor to the instrument pack. 

l

'N: 248/0 U/min' – This shows the momentary engine speed received on the CAN from the ECM.

l

'ATMP: +20.0

°

C' – This shows the ambient temperature received from the ambient air temperature sensor.

If error conditions exist, the following table shows the values which will be displayed.

Test Function No. 8 – Momentary Values for Effective and Displayed Speed in km/h

l

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.

l

'V: 98 km/h' – shows the momentary effective speed.

l

'VAnz: 101 km/h' – shows the displayed speed, compensated for speed signal input error.

Test Function No. 9 – Battery Voltage Supply to Instrument Pack in Volts

l

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.

This function allows the operating voltage applied to the instrument pack to be checked. The value is calculated 
by measurement of the stabilized 5V internal voltage and monitoring of voltage drop internally within the 
instrument pack.

l

'UB: 13.2V' – Shows battery voltage.

Test Function 10 – Read Country Code

l

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 language and country code is programmed into the instrument pack EEPROM at the factory, but can be 
changed using TestBook/T4.

l

'LAND: 07 CDN' – shows the country code programmed in the instrument pack.

Signal

Error Condition

Test Function display

Engine coolant temperature via 

direct connection to sensor

Short circuit of sensor input to battery 

voltage

KTMP: -128

°

C

Short circuit of sensor input to ground

KTMP: -128

°

C

Engine coolant temperature via CAN 

signal

Coolant temperature error

KTMP: -128

°

C

Ambient temperature

Short circuit of sensor input to battery 

voltage

ATMP: -40

°

C

Short circuit of sensor input to ground

ATMP: -40

°

C

Engine speed via CAN

Engine speed = 0

N: 65535 U/MIN

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