Calibration of climate control module (CCM)
This function is used to check the components communicating with the climate control module (CCM) via LIN bus 1 and LIN bus 2. A diagnostic trouble code (DTC) between CCM-0070 and CCM-0072 will be stored, depending on the fault, if there is a fault in one of the LIN buses. These diagnostic trouble codes (DTCs) can only be stored for this diagnostic function.
Quick-tests, calibrations
Quick-tests or calibrations are functions or checks that are integrated in the control module's software and are started by the control module using commands from the diagnostics tool.
Wit this service it is possible to start certain pre-defined checks or teach-ins. Examples of these are
- Quick-test of fuel tank system
- Quick-test of camshaft control
- Resetting of adaptions and counter for oil
- Calibration of gear position sensor
- Calibration of components for Brake control module (BCM)
Note. To enable start and running of these services, it is often that certain start conditions must be fulfilled.
Headlamp range adjustment position sensors (Bi-Xenon)
Cars with Bi-Xenon lamps have a position sensor so that the headlamps can automatically adjust beam length. The vertical adjustment accounts for load and road conditions to reduce the risk of dazzle.
The position sensor is beside the rear axle and is connected to the left-hand rear control arm by a linkage system. This linkage system affects the sensor, allowing the angle of the car to be gauged.
The position sensor is directly connected to the rear electronic module (REM) via three inputs. Two are used for the power supply and ground connection for the sensor. One input is used for signals about the angle of the car. The signals are received by the rear electronic module (REM) which sends them onwards via the Control area network (CAN) to the central electronic module (CEM) which controls the headlamp range adjustment function.
The position sensor can be calibrated using VIDA. The calibration is saved in the rear electronic module (REM) and must be carried out again if the rear electronic module (REM) or position sensor is replaced.
There are diagnostics for the position sensor.