Citroen C5 Aircross Quiz
Driver information instrument cluster

Fuel gauge

In this manual: Driver information instrument cluster
AAS - Parking Aid — 8Owner's Manual Citroën C5 II — 139Citroen C5 Aircross (2017- 2024) - Owner's Manual — 143Audio system — 14Overspeed control — 7Multifunction display — 4Driver information instrument cluster — 20Navigation assistance — 8Intruder alarm — 7Mechanical specifications — 9Power supply — 8Electrical equipment — 13Lighting and electrical equipment — 3Immobiliser — 4Sunroof — 10Exterior lighting / signalling — 38Multiplexing — 7Air conditioning — 7Body — 6General specifications — 9Automatic gearbox control — 3Exterior mirrors — 10Airbags — 5Defrost — 6Underinflation — 6Interior lighting — 4Wipers / Washers — 6Window lifters — 11Cooling — 8Opening management — 7Cruise control — 5Suspension — 4Grip management — 1Paint — 2Exterior lighting control — 1Indicators (turn signals) — 1Automatic lighting systems - General recommendations — 1Wiper control — 1Special position of the front wipers — 1
~1min read

Normal mode

Functional block diagram

Synoptique fonctionnel
Functional block diagram

Phase de fonctionnement à la mise du +APC

Operating phase when +APC is switched on

The BSI compares the last displayed fuel level with the raw level reported by the fuel gauge (variable resistor fitted with a float).

If there is a significant difference, the raw level information is displayed.

Otherwise, the last reading remains displayed.

Operating phase while driving

The fuel gauge is no longer used.

The engine ECU sends the fuel consumption information to the BSI via the CAN network.

The BSI calculates the fuel level based on consumption and broadcasts the result on the VAN Comfort network.

The instrument cluster then converts the fuel level into a needle angle.

Special case: low fuel warning

When the fuel gauge indicates a level below X litres, the BSI sends the low fuel information to the instrument cluster via the VAN Comfort network.

The BSI also sends the raw fuel level to the engine ECU.

Warning light V5 comes on in the instrument cluster.

Display

The fuel level is converted into a needle angle as shown in the following diagram:

Visualisation
Display

Nota : A la mise du contact, l’aiguille peut mettre jusqu’à

Note: When the ignition is switched on, the needle may take up to 2 seconds to reach a stable position.

Degraded mode

If a communication error occurs on the network or an invalid value is received, the needle returns to its rest position 5 seconds after the fault appears. During this time, the last value received is displayed.

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