Coolant Temperature: Notes
WARNING: This page is about a different car, the 2001 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.
The coolant temperature gauge gives the driver information on engine coolant temperature.
The coolant temperature gauge is supplied with current and controlled from the main instrument unit.
Trionic continuously sends out coolant temperature information on the bus.
The main instrument unit controls the temperature display and, based on information from Trionic, it inserts breaks at certain temperatures to give a stable display at normal coolant temperatures.
The following thresholds are programmed into the main instrument unit (factory settings):
GAUGE NEEDLE REFERENCE
| Coolant temperature | ||
| Gauge needle: | 4 cyl | 6 cyl |
| -out in "blue" zone | 50°C | 47°C |
| -into "horizontal" position | 83°C | 80°C |
| -out of "horizontal" position | 115°C | 109°C |
| -into "red" zone | 129°C | 123°C |