Solenoid valve, shut-off valve, heat exchanger
Solenoid valve, shut-off valve, heat exchanger |
The solenoid valve is supplied from +54 via fuse 31 and is controlled on the ground side from the ACC unit's K1 pin 14.
When the control module grounds the output the solenoid valve opens and releases a vacuum to the shut-off valve which in turn shuts off coolant supply.
The control module closes the shut-off valve if the required blended-air temperature is below approximately 6°C for both zones (both zones must be cooled down considerably).
Diagnostics |
In the event of open circuit or short circuit diagnostic trouble code B2375 is generated.