Instrument Panel, Gauges and Warning Indicators: Description and Operation

Gauges and Indicators

How the Circuit Works
The gauges and indicators are part of the multiplex integrated control system. Some indicators are controlled by conditions in their specific systems. Information for these indicators is communicated from control unit to control unit across multiplex communication lines. The following indicators are communicated to the gauge control module through the multiplex integrated control system:
- ABS Indicator
- A/T Temperature Indicator
- Charging System Indicator
- DRL Indicator
- Fog Light Indicator
- High Beam Indicator
- Immobilizer System Indicator
- Lights On Indicator
- Low Oil Pressure Indicator
- Low Tire Pressure Indicator
- Maintenance Required Indicator
- MIL Indicator
- Seat Belt Reminder Indicator
- Security Indicator
- SH-AWD Indicator
- Side Airbag Cut-off Indicator
- SRS Indicator
- TPMS Indicator
- VSA Activation Indicator

Refer to each individual system for more information.

Fuel Gauge and Low Fuel Indicator

WARNING: Do not smoke while working on the fuel system. Keep open flame away from the work area. Drain fuel only into an approved container.

The fuel gauge and low fuel indicator are controlled by the power supply circuit/controller area network controller in the gauge control module. When the resistance of the fuel gauge sending unit changes, the power supply circuit/controller area network controller in the gauge control module sends a signal through a dedicated data line to the power supply circuit/controller area network controller in the gauge control module to display fuel level. When it is determined that the fuel level is low, the low fuel level indicator is activated.

Speedometer
The speedometer is controlled by the power supply circuit/controller area network controller in the gauge control module. The power supply circuit/controller area network controller in the gauge control module receives vehicle speed information from the PCM through the fast controller area network (F-CAN) data lines. The power supply circuit/controller area network controller sends vehicle speed information through a dedicated data line to the power supply circuit/controller area network controller in the gauge control module, which controls the speedometer display.

Tachometer
The tachometer is controlled by the power supply circuit/controller area network controller in the gauge control module. The power supply circuit/controller area network controller in the gauge control module receives vehicle speed information from the PCM through the fast controller area network (F-CAN) data lines. The power supply circuit/controller area network controller controls the tachometer display.