Engine Coolant Temperature Gauge

The temperature gauge displays the engine coolant temperature (ECT), or the cylinder head temperature (CHT), received from the powertrain control module (PCM) over the communication network. The temperature gauge also indicates when failsafe cooling is active. It is a "flat response" gauge providing an indication of whether the engine is cold, normal, overheated, or in failsafe cooling mode. The input temperature and corresponding output gauge command are both filtered to smooth out the pointer movement.