Cluster 0x80 → Broadcast 0xbf
The cluster will periodically broadcast the ambient, and coolant temperatures while the bus is active.
Temperature values use the Celsius scale (℃) by default. The scale not affected by 0x15 Language & Region. For example, if the user sets temperature to ℉, this command will continue to use ℃.
0x1dTemperature Request
80 06 BF 19 0F 54 00 7B
80 06 BF 19 0A E2 00 C8
80 06 BF 19 17 37 00 00
Fixed length. 3 data bytes.
| Parameter | Index | Length | Type | Note |
|---|---|---|---|---|
| Ambient | 0 |
1 |
Integer (signed) | ℃ |
| Coolant | 1 |
1 |
Integer | ℃ |
| NA | 2 |
1 |
-- | Default 0x00 |
The cluster receives analogue input from a remote temperature sensor mounted to the engine undertray (E39).
While the cluster does display the temperature to the nearest half degree (i.e. 20.5), this value is a whole number, rounded down (i.e. 20).
The cluster receives analogue input from the remote coolant temperature sensor which is mounted to the engine head (M52).
I've not seen any logs to suggest this byte has any use.
# Example Temperature Frame 1
80 06 BF 19 17 37 00 00
| Property | Ambient | Coolant | NA |
|---|---|---|---|
| Data | 17 |
37 |
00 |
| Value | 23℃ | 55℃ | -- |
# Example Temperature Frame 2
# The engine had been removed when this frame was captured, phew!
80 06 BF 19 0A E2 00 C8
| Property | Ambient | Coolant | NA |
|---|---|---|---|
| Data | 0A |
E2 |
00 |
| Value | 10℃ | 226℃ | -- |
The check control receives information from the IKE for the following messages. [...]
Coolant temperature
The coolant is overheated. Stop the vehicle and switch off the engine immediately.