Table 2, F2:Trouble Code Table
| Trouble Code | Information Sensor Cause of Fault | Remedy F0:DATA LIST | |
|---|---|---|---|
| No. | Trouble Code Storage when | ||
| 18 | DRIVER SIDE MIRROR CIRCUIT | 21, 22, 23, 24 | The potentiometers for the motors are monitored as follows: |
· Potentiometer voltage (slider lead) higher than approx. 4.7 V (circuit interruption or short circuit to voltage)
· Potentiometer voltage (slider lead) lower than approx. 0.1 V (short circuit to ground)
· The voltages of the slider leads are read in and evaluated every 20 ms
| Effect: |
· Automatic adjustment is blocked for the motor with the faulty potentiometer
| · If the fault occurs in the potentiometers for seat front and/ or rear height, manual adjustment is also blocked for the corresponding motors | |
|---|---|
| · The adjustment speed of the affected motor is not monitored, i.e. blocking of the affected motor is not recognised |
· The end stops for the affected motor are not monitored, i.e. the affected motor is not switched off when it reaches its programmed end stop
· The position of the affected motor is not stored.
| The motor adjustment speed is monitored as follows: |
· The speed of the motors is monitored to protect them against overloading and blocking and to prevent them running in the wrong direction;
The direction-dependent change in the potentiometer voltage for each operating motor is measured and evaluated every second
· The above test is carried out during motor adjustment
| Effect: |
The affected motor is blocked for the current adjustment cycle (manual or automatic adjustment) until the relevant key is released again