Contents: Speedometer ⇩ Tachometer ⇩ Fuel level indicator ⇩ Coolant temperature gauge ⇩ Ambient light sensor ⇩ Vehicle configuration file ⇩
The instrument panel contains the following analog instruments:
- Speedometer
- Tachometer
- Fuel level indicator
- Coolant temperature gauge
Speedometer
The speedometer control is based on rectangular pulse signals generated depending on the signals from the wheel speed sensors and the ABS module. The wheel speed is measured by sensors that read the angular speed of the wheels using toothed electrodes on the hubs. The measured wheel speed values are transmitted to the ABS module as pulse signals. The ABS module converts these signals into output speed signals and transmits them via the high-speed CAN bus to the instrument cluster.
There are three models of speedometer display: 1) speed readings are presented in km/h; 2) speed readings are presented in miles per hour on the main display and in km/h on the additional one; 3) In Canadian models, speed readings are presented in km/h on the main display and in mph on the additional display.
Tachometer
The tachometer control is based on engine speed signals received via the high-speed CAN bus from the ECM. These signals are generated based on the readings of the crankshaft position (CKP) sensor. The signal is received by the instrument cluster microprocessor, and the resulting output signal from the microprocessor controls the tachometer.
Two different types of tachometers are installed for models equipped with petrol and diesel engines. The tachometer for models with petrol engines is graduated up to 8000 rpm. The tachometer for models with diesel engines is graduated up to 6000 rpm.
Fuel level indicator
The fuel gauge shows the amount of fuel in the tank. When the ignition is turned off, the gauge needle returns to the empty tank position.
The instrument cluster is connected to two fuel level sensors. One level sensor is located at the front of the fuel tank, the other at the rear. Both sensors are float-type sensors with a magnetically assisted sensing element (MAPPS). For more information, refer to Fuel Tank and Lines (310-01A Fuel Tank and Lines - 4.0L). For more information, please see Fuel Tank and Lines (310-01B Fuel Tank and Lines - 4.4L). For more information, please see Fuel Tank and Lines (310-01C Fuel Tank and Lines - 2.7L Diesel)
The instrument cluster supplies a reference voltage to each sensor. The instrument cluster measures the residual voltage of each sensor, which is proportional to the amount of fuel in the tank and the position of the float arm. The amount of fuel in the tank is also calculated using vehicle tilt data received via the CAN bus from the electronic parking brake (EPB) module. The instrument cluster uses the fuel level sensor signals and the EPB module tilt signals to accurately calculate the amount of fuel in the tank and display the results on the fuel gauge. The instrument cluster monitors these signals and updates the position of the fuel gauge needle approximately every 20 seconds. This prevents continuous needles due to changes in float position during braking or cornering. When the ignition is switched off, the needle returns to the empty position.
The fuel gauge has a built-in warning lamp that comes on when the fuel level in the tank is 10 litres or less for petrol models and 18 litres or less for diesel models. When the warning lamp comes on, the instrument cluster buzzer sounds to alert the driver to the low fuel level. On upgraded instrument clusters, the low fuel level message is displayed on the message centre display.
The instrument cluster converts the fuel level value into a CAN signal and transmits it to the CAN data transmission system. In diesel models, this signal is used by the flame heater to stop operation.
The following table shows the amount of fuel in the tank and the corresponding positions of the gauge needle.
| Amount of fuel in the tank (l) | Position of the pointer arrow |
| 4,82 | EMPTY |
| 12,5 | LOW FUEL LEVEL (low fuel warning light is on) For models with 4.0L V6 and 4.4L V8 engines only |
| 14 | LOW FUEL LEVEL (low fuel warning light is on) Only for models with TdV6 engines |
| 25,5 | ONE QUARTER FULL |
| 45,4 | HALF FULL |
| 66,1 | THREE QUARTERS FULL |
| 79,89 | FULL |
Coolant temperature gauge
The coolant temperature gauge is designed to inform the driver of the coolant temperature. When the ignition is turned off, the pointer returns to the low temperature position.
The coolant temperature sensor is connected to the ECM, which monitors the sensor signals and converts them into coolant temperature values. This data is transmitted over the high-speed CAN bus for use by the instrument cluster and other systems. For more information, refer to Electronic Engine Controls (303-14A Electronic Engine Controls - 4.0L). For more information, please contact Electronic Engine Controls (303-14B Electronic Engine Controls - 4.4L). For more information, please contact Electronic Engine Controls (303-14C Electronic Engine Controls - 2.7L Diesel).
All models are equipped with the same type of coolant temperature gauge. The blue segment of the scale is designed to indicate low temperatures, and the red segment is designed to indicate excessively high coolant temperatures. At normal operating temperatures, the pointer is located in the center of the scale. Different positions of the pointer are approximately equal to the following temperature values.
| Coolant temperature,°C (°F) | Position of the pointer arrow |
| Ignition is off | Zero position |
| 40 (104) | Low (blue segment) |
| 75 - 115 (167 - 239) | Normal |
| 120 (248) | Start of overheating (red segment) |
| 125 (257) | Overheat |
Ambient light sensor
The ambient light sensor is located on the instrument panel next to the anti-theft alarm indicator light. The ambient light sensor is a phototransistor that measures ambient light.
The phototransistor measures the ambient light in lux and transmits a corresponding signal to the instrument cluster microprocessor. The instrument cluster software adjusts the brightness of the information LCD and message center LCD backlight accordingly to ensure optimal image visibility regardless of the time of day.
Vehicle configuration file
The vehicle configuration file (CCF) contains all data regarding the technical characteristics and sales status, immobilization codes and personal driver settings of the vehicle. This information is stored in the memory of the central junction box (CJB), engine control module (ECM) and instrument cluster, allowing each system module to determine which systems and components are installed on the vehicle. Information is constantly transferred between these three modules, ensuring continuous data redundancy in the modules.
IMPORTANT: If a new instrument cluster is to be fitted, a Land Rover approved diagnostic system must be connected to the vehicle and the instrument cluster replacement procedure must be followed. This will ensure that the correct vehicle information is coded into the new instrument cluster. The Land Rover approved diagnostic system will also record the current service interval and restore the settings to the new instrument cluster.
When a new instrument cluster is fitted, a Land Rover approved diagnostic system is used to transfer the CCF data from the CBJ box to the new cluster. The vehicle's coded data, such as engine type, market, etc., is then available and used to update the new cluster.
If the vehicle is modified by servicing from the original factory specification, the CCF will also require an update using a Land Rover approved diagnostic system. Such modifications may include the fitting of non-standard wheels and/or tyres, or the fitting of electrical accessories by the dealer such as Park Distance Control, etc.
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