Fault code 1520: Diagnosis/troubleshooting
NOTE:
If there is no incoming signal/message via CAN comfort using several control modules, CAN comfort must be checked for open or short circuits. Refer to 'CHECKING INSTRUCTIONS/CAN DATA BUS
'.
DIAGNOSIS/TROUBLESHOOTING CHART
| Work instruction | Display OK | If not OK | |
|---|---|---|---|
| 1 | Read out fault memory for rain sensor/light sensor (fault localization) | For further fault restriction, please follow the diagnosis/ troubleshooting instructions for the rain sensor/light sensor, refer to FAULT OVERVIEW
. → End |
|
| 2 | CHECKING INSTRUCTIONS/CAN DATA BUS . | → End | |
| 3 | For 'implausible signal', check function and circuit of 'rain sensor/light sensor' | Please follow the diagnosis/troubleshooting instructions for the rain sensor/light sensor, refer to FAULT CODE 1520
. → End |
|