Painel de instrumentos – Funcionamento do sistema e componentes

413-01-8 Instrument Cluster 413-01-8 DESCRIPTION AND OPERATION Safety Belt Warning Indicator The safety belt warning indicator operates for both the driver and passenger safety belts. The warning indicator is controlled by the RCM and illuminated by the instrument cluster on receipt of high speed CAN bus messages. The safety belt warning indicator is not subject to the 6 second indicator check when the ignition is switched on. The safety belt warning indicator is subject to a timer. The warning indicator is activated when the following conditions exist: • The seat belt warning lamp will be illuminated for 6 seconds when the ignition is turned on to remind the driver to fasten the seatbelt. • The seat belt warning lamp will be illuminated for 6 seconds when the ignition is turned on and if the drivers seat belt is not buckled. • The seat belt reminder warning lamp illuminates and an audible warning will sound if the driver or front passenger seat belt has not been fastened and the vehicle exceeds a relatively low speed. It will also illuminate if either of the seat belt is unfastened when the vehicle is moving. The audible warning will go off after five minutes but the seat belt reminder warning lamp will remain on until the seat belt is fastened. Side Lamp Indicator The instrument cluster controls the orange colored side lamp indicator on receipt of a side lamp status message on the medium speed CAN bus from the PJB and the auxiliary junction box. Selections using this switch are detected by the cluster which requests the side or headlamp operation via a message to the PJB and the PJB. The PJB and the RJB responds with a side lamp active message and the cluster illuminates the side lamp indicator. The side lamp indicator is not subject to the 3 second indicator check when the ignition is switched on. High Beam Indicator The instrument cluster controls the blue colored high beam indicator on receipt of a high beam status message on the medium speed CAN bus from the PJB. High beam or flash selections using this switch are detected by the cluster which requests the light operation via a CAN message to the PJB. The PJB responds with a high beam active message and the cluster illuminates the high beam indicator. The high beam indicator is not subject to the 3 second indicator check when the ignition is switched on. Rear Fog Lamp Indicator The amber colored rear fog lamp indicator is controlled by the auxiliary junction box and illuminated by the instrument cluster on receipt of a rear fog lamp on . The rear fog lamp indicator lamp will come on when you switch the rear fog lamps on. The rear fog lamp indicator is not subject to the 3 second indicator check when the ignition is switched on. You cannot switch the rear fog lamps on unless you have switched the headlamps and front fog lamp on. Speedo meter The speedometer is driven by high speed CAN signals transmitted by the ABS module. The wheel speeds are measured by sensors reading the rotational speed of the rear wheels from toothed targets on the hubs. An average of the two wheel speeds are passed from the sensors to the ABS module in the form of pulsed signals. The ABS module converts these signals into a speed output on the high speed CAN to the instrument cluster. The same speed outputs from the wheel speed sensors are also used to calculate the distance the vehicle has traveled. Tacho meter The tachometer is driven by an engine speed signal transmitted on the high speed CAN from the ECM. The signal is derived from the CKP (crankshaft position) sensor. The signal is received by the instrument cluster microprocessor and the output from the microprocessor drives the tachometer. Fuel gauge The fuel gage is controlled by CAN messages from the RJB. The RJB reads the values output by the fuel level sensors every 131 ms and transmits a fuel tank contents value, corrected for battery voltage, in a CAN message to the instrument cluster. A fuel pump symbol is displayed to the left of the linear gage. Above the linear fuel gage, is a LCD (liquid crystal display) area which displays