Vehicle properties
Engine & powertrain
ENGINE_COOLANT_TEMP
What it is
Temperature of engine coolant
How the ID is built
A property ID is a 32-bit value packing four fields. Reading 0x11600301 apart:
| Field | Mask | Value | Means |
|---|---|---|---|
| Group | 0xf0000000 | 0x10000000 | SYSTEM |
| Area | 0x0f000000 | 0x01000000 | GLOBAL |
| Type | 0x00ff0000 | 0x00600000 | FLOAT |
| Ordinal | 0x0000ffff | 0x00000301 | 0x301 |
Reading it from an app
CarPropertyManager mgr = (CarPropertyManager)
car.getCarManager(Car.PROPERTY_SERVICE);
mgr.registerCallback(callback,
VehiclePropertyIds.ENGINE_COOLANT_TEMP,
CarPropertyManager.SENSOR_RATE_ONCHANGE);This property is read-only — writes are rejected. It changes continuously, so subscribe at a sample rate rather than polling.