Temperature Gauge: Description and Operation

How the Circuit Works

The indicators are controlled by relative conditions in their associated systems. For the following indicators the information supplied to the gauge assembly is received via the multiplex control unit:
- Charging System
- Door/Hatch Indicator Light
- Maintenance Required Indicator
- Seat Belt Reminder

Engine Coolant Temperature Gauge
The engine coolant temperature gauge is controlled by the CPU built-in the gauge assembly. The CPU receives coolant temperature information from the ECM/PCM via the multiplex control unit. The ECM/PCM receives coolant temperature information from the ECT sensor.