High Temperature Warning Indicator

Illuminates briefly (for 4 seconds) as a bulb check when the Ignition switch is turned to position II.

The engine coolant temperature gauge sensor has the capability to sense from -40°C to +130°C. Petrol and Diesel resistance valves are different.

Both Petrol and Diesel sensors are interfaced to the Instrument Cluster (Z142) via the BeCM (Z238).